Brocade Communications Systems (BRCD) 10-Q 2 Sep 16 2016 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Jul. 30, 2016	Aug. 26, 2016
Entity Information [Line Items]
Entity Registrant Name	BROCADE COMMUNICATIONS SYSTEMS INC
Entity Central Index Key	1,009,626
Current Fiscal Year End Date	--10-29
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jul. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		400,870,091
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Net revenues:
Product	$ 490,995	$ 463,200	$ 1,400,355	$ 1,407,681
Service	99,726	88,619	287,956	266,952
Total net revenues	590,721	551,819	1,688,311	1,674,633
Cost of revenues:
Product	188,492	144,243	464,797	431,781
Service	45,330	35,672	127,489	109,056
Total cost of revenues	233,822	179,915	592,286	540,837
Gross margin	356,899	371,904	1,096,025	1,133,796
Operating expenses:
Research and development	114,996	85,072	297,516	262,173
Sales and marketing	167,983	144,883	468,743	428,199
General and administrative	32,960	20,422	78,180	65,815
Amortization of intangible assets	5,498	889	7,302	1,654
Acquisition and integration costs	14,868	789	20,625	3,133
Restructuring and other related benefits	0	0	(566)	(637)
Total operating expenses	336,305	252,055	871,800	760,337
Income from operations	20,594	119,849	224,225	373,459
Interest expense	(13,462)	(9,778)	(33,282)	(45,754)
Interest and other income, net	1,557	947	3,317	854
Income before income tax	8,689	111,018	194,260	328,559
Income tax expense (benefit)	(1,806)	19,351	47,034	72,585
Net income	$ 10,495	$ 91,667	$ 147,226	$ 255,974
Net income per share—basic	$ 0.02	$ 0.22	$ 0.36	$ 0.61
Net income per share—diluted	$ 0.02	$ 0.21	$ 0.35	$ 0.59
Shares used in per share calculation—basic	426,671	417,299	411,709	422,184
Shares used in per share calculation—diluted	434,416	427,518	419,416	433,303
Cash dividends declared per share	$ 0.055	$ 0.045	$ 0.145	$ 0.115

Condensed Consolidated Stateme3

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Statement of Comprehensive Income [Abstract]
Net income		$ 10,495	$ 91,667	$ 147,226	$ 255,974
Unrealized gains (losses) on cash flow hedges:
Change in unrealized gains and losses		(700)	(414)	(1,035)	(2,332)
Net gains and losses reclassified into earnings	[1]	482	831	1,831	2,544
Net unrealized gains (losses) on cash flow hedges		(218)	417	796	212
Foreign currency translation adjustments		(1,628)	(492)	(1,760)	(5,781)
Total other comprehensive loss		(1,846)	(75)	(964)	(5,569)
Total comprehensive income		$ 8,649	$ 91,592	$ 146,262	$ 250,405
[1]	For classification of amounts reclassified from accumulated other comprehensive loss into earnings as reported on the Company’s Condensed Consolidated Statements of Income, see Note 10, “Derivative Instruments and Hedging Activities,” of the Notes to Condensed Consolidated Financial Statements.

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 30, 2016	Oct. 31, 2015
Current assets:
Cash and cash equivalents	$ 1,153,074	$ 1,440,882
Accounts receivable, net of allowances for doubtful accounts of $3,836 and $1,838 as of July 30, 2016, and October 31, 2015, respectively	278,180	235,883
Inventories	81,182	40,524
Deferred tax assets	0	78,675
Prepaid expenses and other current assets	86,922	56,235
Total current assets	1,599,358	1,852,199
Property and equipment, net	459,812	439,224
Goodwill	2,324,315	1,617,161
Intangible assets, net	434,921	75,623
Non-current deferred tax assets	3,918	813
Other assets	51,441	51,133
Total assets	4,873,765	4,036,153
Current liabilities:
Accounts payable	121,093	98,143
Accrued employee compensation	134,471	142,075
Deferred revenue	257,460	244,622
Current portion of long-term debt	76,627	298
Other accrued liabilities	111,559	77,226
Total current liabilities	701,210	562,364
Long-term debt, net of current portion	1,516,761	793,779
Non-current deferred revenue	87,875	72,065
Non-current income tax liability	100,208	47,010
Non-current deferred tax liabilities	0	24,024
Other non-current liabilities	6,908	3,376
Total liabilities	2,412,962	1,502,618
Commitments and contingencies (Note 9)
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000 shares authorized, no shares issued and outstanding	0	0
Common stock, $0.001 par value, 800,000 shares authorized:
Issued and outstanding: 400,679 and 413,923 shares as of July 30, 2016, and October 31, 2015, respectively	401	414
Additional paid-in capital	1,473,159	1,632,984
Accumulated other comprehensive loss	(25,966)	(25,002)
Retained earnings	1,010,659	925,139
Total Brocade stockholders’ equity	2,458,253	2,533,535
Noncontrolling interest	2,550	0
Total stockholders’ equity	2,460,803	2,533,535
Total liabilities and stockholders’ equity	$ 4,873,765	$ 4,036,153

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Jul. 30, 2016	Oct. 31, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 1,736	$ 1,838
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	800,000	800,000
Common stock, shares issued	400,679	413,923
Common stock, shares outstanding	400,679	413,923

Condensed Consolidated Stateme6

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015
Cash flows from operating activities:
Net income	$ 147,226	$ 255,974
Adjustments to reconcile net income to net cash provided by operating activities:
Excess tax benefits from stock-based compensation	(1,778)	(41,981)
Depreciation and amortization	80,979	62,569
Loss on disposal of property and equipment	458	1,620
Net gain on sale of investments	(122)	0
Amortization of debt issuance costs and debt discount	13,493	9,443
Write-off of debt discount and debt issuance costs related to lenders that did not participate in refinancing	0	4,808
Provision (recovery) for doubtful accounts receivable and sales allowances	(1,946)	7,189
Non-cash purchase accounting adjustments to inventory	20,775	0
Non-cash stock-based compensation expense	88,805	64,594
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	988	17,959
Inventories	5,601	(1,778)
Prepaid expenses and other assets	(9,725)	(20,854)
Deferred tax assets	(109)	531
Accounts payable	5,519	2,266
Accrued employee compensation	(57,520)	(94,852)
Deferred revenue	5,359	(14,220)
Other accrued liabilities	(43,874)	16,478
Restructuring liabilities	(1,223)	(2,514)
Net cash provided by operating activities	252,906	267,232
Cash flows from investing activities:
Purchases of non-marketable equity and debt investments	(2,000)	(2,150)
Proceeds from maturities and sale of short-term investments	150,323	0
Proceeds from sale of non-marketable equity investment	0	1,489
Purchases of property and equipment	(59,810)	(53,142)
Purchase of intangible assets	0	(7,750)
Net cash paid in connection with acquisitions	(564,888)	(95,452)
Proceeds from collection of note receivable	250	250
Net cash used in investing activities	(476,125)	(156,755)
Cash flows from financing activities:
Payment of principal related to senior secured notes	0	300,000
Payment of debt issuance costs	(891)	(1,718)
Payment of principal related to capital leases	(282)	(1,677)
Common stock repurchases	(841,562)	(312,601)
Proceeds from issuance of common stock	49,195	51,345
Payment of cash dividends to stockholders	(61,706)	(48,819)
Proceeds from term loan	787,255	0
Proceeds from convertible notes	0	565,656
Purchase of convertible note hedge	0	(86,135)
Proceeds from issuance of warrants	0	51,175
Proceeds from noncontrolling interest	2,550	0
Excess tax benefits from stock-based compensation	1,778	41,981
Net cash used in financing activities	(63,663)	(40,793)
Effect of exchange rate fluctuations on cash and cash equivalents	(926)	(5,030)
Net increase (decrease) in cash and cash equivalents	(287,808)	64,654
Cash and cash equivalents, beginning of period	1,440,882	1,255,017
Cash and cash equivalents, end of period	1,153,074	1,319,671
Supplemental disclosures of cash flow information:
Cash paid for interest	24,264	29,560
Cash paid for income taxes	46,163	35,372
Settlement of debt investment in relation to acquisition	0	150
Acquiring a business through the issuance of stock	$ 623,116	$ 0

Basis Of Presentation

Basis Of Presentation	9 Months Ended
	Jul. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation	Basis of Presentation Brocade Communications Systems, Inc. (“Brocade” or the “Company”) has prepared the accompanying Condensed Consolidated Financial Statements pursuant to the rules and regulations of the United States (“U.S.”) Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. The Company’s Condensed Consolidated Balance Sheet as of October 31, 2015 , was derived from the Company’s audited consolidated financial statements, but does not include all disclosures required by U.S. GAAP. These unaudited Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended October 31, 2015 . The accompanying Condensed Consolidated Financial Statements are unaudited but, in the opinion of the Company’s management, reflect all adjustments—including normal recurring adjustments—that management considers necessary for a fair presentation of these Condensed Consolidated Financial Statements. The results for the interim periods presented are not necessarily indicative of the results for the full fiscal year or any other future period. The Company’s fiscal year is a 52- or 53-week period ending on the last Saturday in October or the first Saturday in November, respectively. As is customary for companies that use the 52/53-week convention, every fifth year is a 53-week year. Fiscal year 2016 is a 52-week fiscal year and fiscal year 2015 was a 52-week fiscal year. The Company’s next 53-week fiscal year will be fiscal year 2019 and its next 14-week quarter will be the second quarter of fiscal year 2019. The Company’s Condensed Consolidated Financial Statements include the accounts of Brocade and its wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. In May 2016, the Company entered into a joint venture agreement with Guiyang High-Tech Industrial Investment Group Co., Ltd. (“HTII”) to create Guizhou Huiling Technology Co., Ltd (“GHTC”). The Company consolidates its investment in GHTC as this is a variable interest entity, and the Company is the primary beneficiary. The noncontrolling interest attributed to GHTC is presented as a separate component from the Company’s equity in the equity section of the Company’s Condensed Consolidated Balance Sheets. HTII’s share of GHTC’s earnings are not presented separately in the Company’s Condensed Consolidated Statements of Income as these amounts are not material for any of the fiscal periods presented. Use of Estimates in Preparation of Condensed Consolidated Financial Statements The preparation of the Company’s Condensed Consolidated Financial Statements and related disclosures in conformity with U.S. GAAP requires management to make estimates and judgments that affect the amounts reported in the Company’s Condensed Consolidated Financial Statements and accompanying notes. Estimates are used for, but not limited to, revenue recognition, sales allowances and programs, allowance for doubtful accounts, stock-based compensation, acquisition purchase price allocations, warranty obligations, inventory valuation and purchase commitments, restructuring costs, incentive compensation, facilities lease losses, impairment of goodwill and other indefinite-lived intangible assets, litigation, and income taxes. Actual results may differ materially from these estimates.

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	9 Months Ended
	Jul. 30, 2016
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	Summary of Significant Accounting Policies There have been no material changes in the Company’s significant accounting policies for the nine months ended July 30, 2016 , as compared to those disclosed in Brocade’s Annual Report on Form 10-K for the fiscal year ended October 31, 2015 . Consolidation of Variable Interest Entities The Company uses a qualitative approach in assessing the consolidation requirement for variable interest entities. The approach focuses on identifying which enterprise has the power to direct the activities that most significantly impact the variable interest entity’s economic performance and which enterprise has the obligation to absorb losses or the right to receive benefits from the variable interest entity. In the event that the Company is the primary beneficiary of a variable interest entity, the assets, liabilities, and results of operations of the variable interest entity will be included in the Company’s consolidated financial statements. New Accounting Pronouncements or Updates Recently Adopted In April 2014, the Financial Accounting Standards Board (“FASB”) issued an update to Accounting Standards Codification (“ASC”) 205, Presentation of Financial Statements , and ASC 360, Property, Plant, and Equipment: Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity . Under this update, a discontinued operation may include a component of an entity or a group of components of an entity, a business, or nonprofit activity. Only those disposals of components of an entity that represent a strategic shift that has, or will have, a major effect on an entity’s operations and financial results will be reported as discontinued operations in the financial statements. This update should be applied prospectively. The Company adopted this update in the first quarter of fiscal year 2016. There was no material impact on the Company’s financial position, results of operations, or cash flows. In April 2015, the FASB issued an update to ASC 835, Interest—Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs . Under this update, debt issuance costs are required to be presented as a direct deduction from the carrying amount of the related debt liability, consistent with the presentation of debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by this update. This update should be applied retrospectively to all prior periods presented in the financial statements. The Company adopted this update in the first quarter of fiscal year 2016. There was no material impact on the Company’s financial position, results of operations, or cash flows. In September 2015, the FASB issued an update to ASC 805, Business Combinations: Simplifying the Accounting Measurement-Period Adjustments . This update simplifies the accounting for adjustments made to provisional amounts recognized in a business combination by eliminating the requirement to retrospectively account for those adjustments. Under this update, the adjustments are recognized in the reporting period in which the adjustment amounts are determined. This update should be applied prospectively. The Company adopted this update in the first quarter of fiscal year 2016. There was no material impact on the Company’s financial position, results of operations, or cash flows. In November 2015, the FASB issued an update to ASC 740, Income Taxes: Balance Sheet Classification of Deferred Taxes . This update simplifies the presentation of current and non-current deferred tax liabilities and assets. Under this update, the deferred tax liabilities and assets are classified as non-current on the balance sheet. The update does not impact the current requirement that deferred tax liabilities and assets be offset and presented as a single amount. This update may be applied either prospectively or retrospectively. The Company adopted this update in the first quarter of fiscal year 2016 and has elected to apply this update prospectively. There was no material impact on the Company’s financial position, results of operations, or cash flows. Recent Accounting Pronouncements or Updates That Are Not Yet Effective In May 2014, the FASB issued ASC 606, Revenue from Contracts with Customers , that will supersede virtually all existing revenue guidance. Under this new revenue guidance, an entity is required to recognize revenue upon transfer of promised goods or services to customers, in an amount that reflects the expected consideration received in exchange for those goods or services. As such, an entity will need to use more judgment and make more estimates than under the current guidance. This new revenue guidance should be applied retrospectively either to each prior reporting period presented in the financial statements, or only to the most current reporting period presented in the financial statements with a cumulative effect adjustment recorded in retained earnings. In August 2015, the FASB issued an update to defer the effective date of this new revenue guidance by one year. This new revenue guidance becomes effective and will be adopted by the Company in the first quarter of fiscal year 2019. Early adoption is not permitted for reporting periods before the first quarter of fiscal year 2018. The Company is currently evaluating the impact of this new revenue guidance on its consolidated financial statements. In March 2016, the FASB issued an update to ASC 606, Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net) , which clarifies the implementation guidance for principal versus agent considerations. In April 2016, the FASB issued an update to ASC 606, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing , which clarifies the guidance related to identifying performance obligations and accounting for licenses of intellectual property. In May 2016, the FASB issued an update to ASC 606, Revenue from Contracts with Customers: Narrow-Scope Improvements and Practical Expedients , which clarifies the guidance related to collectibility and non-cash consideration, as well as provides practical expedients for the transition to ASC 606. The Company must adopt these updates with the adoption of ASC 606, Revenue from Contracts with Customers . The Company is currently evaluating the impact of these updates on its consolidated financial statements. In April 2015, the FASB issued an update to ASC 350, Intangibles—Goodwill and Other—Internal-Use Software: Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement . This update provides guidance on the accounting for fees paid in a cloud computing arrangement if the arrangement was determined to include a software license. This update will not change U.S. GAAP for a customer’s accounting for service contracts. This update may be applied either prospectively or retrospectively and will be adopted by the Company in the first quarter of fiscal year 2017. Early adoption is permitted. The Company does not expect the adoption of this update to have a material impact on its consolidated financial statements. In July 2015, the FASB issued an update to ASC 330, Inventory: Simplifying the Measurement of Inventory . Under this update, measurement of inventory is based on the lower of cost or net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less the estimated cost of completion and disposal. This update does not apply to inventory that is measured using last-in, first-out or the retail inventory method. This update should be applied prospectively and will be adopted by the Company in the first quarter of fiscal year 2018. Early adoption is permitted. The Company does not expect the adoption of this update to have a material impact on its consolidated financial statements. In January 2016, the FASB issued an update to ASC 825, Financial Instruments—Overall: Recognition and Measurement of Financial Assets and Financial Liabilities . This update consists of eight provisions that provide guidance on the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. This update should be applied by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption and prospectively for equity investments without readily determinable fair values. This update becomes effective and will be adopted by the Company in the first quarter of fiscal year 2019. Early adoption is permitted for two of the eight provisions. The Company is currently evaluating the impact of this update on its consolidated financial statements and related disclosures. In February 2016, the FASB issued ASC 842, Leases , that will supersede the existing lease guidance, including on-balance sheet recognition of operating leases for lessees. This new lease guidance should be applied using a modified retrospective approach and will be adopted by the Company in the first quarter of fiscal year 2020. Early adoption is permitted. The Company is currently evaluating the impact of this new lease guidance on its consolidated financial statements. In March 2016, the FASB issued an update to ASC 718, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting . This update simplifies certain aspects of the accounting for share-based payment transactions, including income taxes, forfeiture rates, classification of awards, and classification in the statement of cash flows. This update becomes effective in the first quarter of fiscal year 2018. Early adoption is permitted. The Company is currently evaluating the impact of this update on its consolidated financial statements. In June 2016, the FASB issued ASC 326, Financial Instrument—Credit Losses , that will supersede the existing methodology for estimating expected credit losses on certain financial instruments. The new impairment methodology eliminates the probable initial recognition threshold and, instead, estimates the expected credit losses in consideration of past events, current conditions, and forecasted information. This update becomes effective in the first quarter of fiscal year 2021. Early adoption is permitted in the first quarter of fiscal year 2020. The Company is currently evaluating the impact of this update on its consolidated financial statements. In August 2016, the FASB issued an update to ASC 230, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments . This update consists of eight provisions that provide guidance on the classification of certain cash receipts and cash payments. If practicable, this update should be applied using a retrospective transition method to each period presented. For the provisions that are impracticable to apply retrospectively, those provisions may be applied prospectively as of the earliest date practicable. This update becomes effective and will be adopted by the Company in the first quarter of fiscal year 2019. Early adoption is permitted. The Company is currently evaluating the impact of this update on its consolidated financial statements and related disclosures. Concentrations Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents, and accounts receivable. Cash and cash equivalents are primarily maintained at six major financial institutions. Deposits held with banks may be redeemed upon demand and may exceed the amount of insurance provided on such deposits. A majority of the Company’s accounts receivable balance is derived from sales to original equipment manufacturer (“OEM”) partners in the computer storage and server industry. As of July 30, 2016 , two customers individually accounted for 18% and 10% of total accounts receivable, for a combined total of 28% of total accounts receivable. As of October 31, 2015 , one customer individually accounted for 17% of total accounts receivable and no other customers individually accounted for more than 10% of total accounts receivable. The Company performs ongoing credit evaluations of its customers and generally does not require collateral on accounts receivable balances. The Company has established reserves for credit losses and sales allowances. For the three months ended July 30, 2016 , two customers individually accounted for 12% and 12% of the Company’s total net revenues for a combined total of 24% of total net revenues. For the three months ended August 1, 2015 , three customers individually accounted for 16% , 15% , and 12% of the Company’s total net revenues for a combined total of 43% of total net revenues. The Company currently relies on single and limited sources for multiple key components used in the manufacture of its products. Additionally, the Company relies on multiple contract manufacturers (“CMs”) for the production of its products, including Hon Hai Precision Industry Co., Ltd. and Accton Technology Corporation. Although the Company uses standard parts and components for its products where possible, the Company’s CMs currently purchase, on the Company’s behalf, several key components used in the manufacture of products from single- or limited-source suppliers. The Company also entered into license agreements with some of its suppliers, including Qualcomm Inc., for technologies and components that are used in its products.

Acquisitions

Acquisitions	9 Months Ended
	Jul. 30, 2016
Business Combinations [Abstract]
Acquisitions	Acquisitions Current Fiscal Year Acquisitions Acquisition of Ruckus Wireless, Inc. (“Ruckus”) On May 27, 2016 (“Acquisition Date”), the Company completed its acquisition of Ruckus, a public company incorporated in the state of Delaware, to strengthen its Internet Protocol (“IP”) Networking product portfolio by adding Ruckus’ wireless products and services to the Company’s networking solutions. Pursuant to the terms of the Agreement and Plan of Merger entered into between the Company, Ruckus, and a Company subsidiary, Ruckus stockholders were entitled to receive $6.45 in cash and 0.75 shares of the Company’s common stock in exchange for each outstanding share of Ruckus common stock. The results of operations for the acquired business are included in the Company’s Condensed Consolidated Statements of Income from the Acquisition Date. Immediately prior to the completion of the acquisition, there were 92.2 million outstanding shares of Ruckus common stock, which included 3.2 million shares of Ruckus common stock owned by a dissenting former Ruckus stockholder who has submitted and not withdrawn a demand for appraisal of the fair value of those shares under Delaware law. As a result, no cash payment had been made and no shares had been issued to the dissenting stockholder as of July 30, 2016. Based on the $8.60 per share closing price of the Company’s common stock on May 27, 2016, the total preliminary purchase consideration paid or payable was $1.3 billion , consisting of $574.0 million in cash for outstanding Ruckus shares less dissenting shares, $78.3 million in cash for outstanding vested Ruckus stock options allocated to preliminary purchase consideration, $574.0 million of equity interests in the Company, $7.4 million of the fair value of replacement awards allocated to the preliminary purchase consideration, and $41.7 million relating to the appraisal demand submitted by the dissenting former Ruckus stockholder, which was accrued as of July 30, 2016 , and reported within “Other accrued liabilities” on the Company’s Condensed Consolidated Balance Sheets. The Company recorded direct acquisition costs of $10.2 million and $15.2 million for the three and nine months ended July 30, 2016 , respectively, and integration costs of $4.6 million and $5.4 million for the three and nine months ended July 30, 2016 , respectively. These costs were expensed as incurred and are presented in the Company’s Condensed Consolidated Statements of Income for the three and nine months ended July 30, 2016 , as “Acquisition and integration costs.” In connection with this acquisition, the Company allocated the total preliminary purchase consideration to the net assets acquired and liabilities assumed, including identifiable intangible assets, based on their respective fair values at the Acquisition Date. The following table summarizes the preliminary allocation of the total preliminary purchase consideration to the fair value of the assets acquired and liabilities assumed (in thousands): Assets acquired: Cash and cash equivalents $ 95,515 Short-term investments 149,615 Accounts receivable, net of allowances for doubtful accounts of $2,100 41,339 Inventories 66,000 Prepaid expenses and other current assets 5,953 Property and equipment, net 21,777 Identifiable intangible assets 380,000 Other assets 1,697 Total assets acquired 761,896 Liabilities assumed: Accounts payable 16,375 Accrued employee compensation 17,514 Deferred revenue 13,923 Other accrued liabilities 33,810 Non-current deferred revenue 9,364 Non-current deferred tax liabilities 57,677 Other non-current liabilities 40,561 Total liabilities assumed 189,224 Net assets acquired, excluding goodwill (a) 572,672 Total preliminary purchase consideration (b) 1,275,448 Estimated goodwill (b) - (a) $ 702,776 Goodwill represents the excess of the total preliminary purchase consideration over the fair value of the underlying assets acquired and liabilities assumed. Goodwill is attributable to planned growth in new markets and synergies expected to be achieved from the combined operations of the Company and Ruckus. Goodwill of $303.8 million was assigned to the IP Networking Products reporting unit, and goodwill of $398.9 million was assigned to the Global Services reporting unit. Goodwill recognized in the acquisition is no t deductible for tax purposes. A preliminary assessment of the fair value of identified intangible assets and their respective useful lives are as follows (in thousands, except for estimated useful life): Approximate Fair Value Estimated Useful Life (In years) Trade name/trademark $ 44,000 15.00 Customer relationships 118,000 1 - 7 Developed technology 195,000 6 - 7 In-process research and development (“IPR&D”) (1) 23,000 N/A (1) Total intangible assets $ 380,000 (1) IPR&D will be accounted for as an indefinite-lived intangible asset until the underlying projects are completed or abandoned. The total preliminary purchase consideration and allocation reflects the Company’s preliminary estimates and is subject to revision as additional information in relation to the preliminary purchase consideration and the fair value of the underlying assets acquired and liabilities assumed becomes available. Additional information that existed as of the Acquisition Date may become known to the Company during the remainder of the measurement period. This period is not to exceed 12 months from the acquisition date. Pursuant to the terms of the Agreement and Plan of Merger, all unvested Ruckus awards, then comprised of restricted stock units (“RSUs”), performance-based RSUs, and stock options, were canceled and replaced with Company RSUs and stock options (“replacement awards”). Per ASC 805, Business Combinations, the replacement of stock options or other share-based payment awards in conjunction with a business combination represents a modification of share-based payment awards that must be accounted for in accordance with ASC 718, Compensation—Stock Compensation. As a result of the Company’s obligation to issue replacement awards, a portion of the fair-value-based measure of replacement awards is included in measuring the purchase consideration transferred in the business combination. To determine the portion of the replacement awards that is part of the purchase consideration, the Company measured the fair value of both the replacement awards and the historical Ruckus awards as of the Acquisition Date, in accordance with ASC 718. The fair value of the replacement awards, whether vested or unvested, was included in the preliminary purchase consideration to the extent that pre-acquisition services had been rendered. The preliminary purchase consideration also included the fair value of accelerated vesting for awards that vested at the Acquisition Date due to change-in-control provisions. In addition, the Company accelerated 20% to 50% of the vesting of unvested replacement awards granted to eight Ruckus executives and modified the vesting schedules of unvested replacement awards granted to those eight plus an additional four Ruckus executives. As a result, the Company recorded $4.7 million as an expense in the three and nine months ended July 30, 2016 . As of July 30, 2016 , the fair value of the remaining unvested replacement awards of $28.6 million will be recorded as stock-based compensation expense over the applicable future vesting periods. For the three and nine months ended July 30, 2016 , the Company’s Condensed Consolidated Statements of Income included revenue and loss from operations of $77.8 million and $37.6 million , respectively, attributable to the operations of the Ruckus business since the Acquisition Date. Unaudited Pro Forma Financial Information The following unaudited pro forma financial information presents the consolidated results of the Company and Ruckus for the three and nine months ended July 30, 2016, and August 1, 2015 , giving effect to the acquisition and the related debt financing as if they had occurred on November 2, 2014, and combines the historical financial results of the Company and Ruckus. The unaudited pro forma financial information includes adjustments to give effect to pro forma events that are directly attributable to the acquisition and the related debt financing. The pro forma financial information includes adjustments to amortization and depreciation for intangible assets and property, plant, and equipment acquired, adjustments to stock-based compensation expense, the effect of acquisition on inventory acquired and deferred revenue, interest expense for the additional indebtedness, and acquisition and integration costs. The unaudited pro forma financial information is presented for illustrative purposes only and is not necessarily indicative of the results of operations of future periods. The unaudited pro forma financial information does not give effect to the potential impact of current financial conditions, regulatory matters, or any anticipated synergies, operating efficiencies, or cost savings that may be associated with the acquisition. Consequently, actual results will differ from the unaudited pro forma financial information presented below (in thousands, except for per share amounts): Three Months Ended Nine Months Ended July 30, August 1, July 30, August 1, Unaudited pro forma consolidated results: Pro forma revenues $ 600,530 $ 655,663 $ 1,900,664 $ 1,953,490 Pro forma net income (loss) $ (21,936 ) $ 85,843 $ 100,982 $ 168,212 Pro forma net income (loss) per share—basic $ (0.05 ) $ 0.21 $ 0.25 $ 0.40 Pro forma net income (loss) per share—diluted $ (0.05 ) $ 0.20 $ 0.24 $ 0.38 Unaudited pro forma net income for the nine months ended August 1, 2015 , includes nonrecurring pro forma adjustments directly attributable to the acquisition to the effect of inventory acquired and acquisition and integration costs of $39.8 million and $20.6 million , respectively. No such adjustments are included in any other periods. Other Fiscal Year 2016 Acquisition In March 2016, the Company completed its acquisition of a privately held developer of software for data center automation to strengthen its IP Networking product portfolio. The Company does not consider this acquisition to be material to its results of operations or financial position. Therefore, the Company is not presenting pro forma financial information of combined operations. Prior Fiscal Year Acquisitions In March 2015, the Company completed its acquisition of two businesses to strengthen its software networking portfolio. The total aggregate purchase price of the acquisitions was $96.1 million . The total net aggregate purchase price of the acquisitions, net of $0.1 million of cash acquired as part of the acquisitions, was $95.5 million in cash consideration and $0.5 million in non-cash consideration. The Company recorded direct acquisition costs of $1.5 million for the nine months ended August 1, 2015 , and integration costs of $0.8 million and $1.7 million for the three and nine months ended August 1, 2015 , respectively. These costs were expensed as incurred and are presented in the Company’s Condensed Consolidated Statements of Income for the three and nine months ended August 1, 2015 , as “Acquisition and integration costs.” The results of operations for both acquisitions are included in the Company’s Condensed Consolidated Statements of Income from the respective dates of acquisition. The Company does not consider these acquisitions to be significant, individually or in the aggregate, to its results of operations or financial position. Therefore, the Company is not presenting pro forma financial information of combined operations. In connection with these acquisitions, the Company allocated the total purchase consideration to the net assets acquired and liabilities assumed, including identifiable intangible assets, based on their respective fair values at the acquisition dates. The Company also granted RSU awards and cash awards to transferring or continuing employees of the acquired businesses. These awards require the employees to continue providing services to the Company for the duration of the vesting or payout periods. The RSUs are accounted for as stock-based compensation expense and reported, as applicable, within “Cost of revenues,” “Research and development,” “Sales and marketing,” and “General and administrative” on the Company’s Condensed Consolidated Statements of Income . For the three and nine months ended July 30, 2016 , the Company recognized $0.5 million and $1.4 million , respectively, of stock-based compensation expense related to these RSU awards. For the three and nine months ended August 1, 2015 , the Company recognized $0.9 million and $1.1 million , respectively, of stock-based compensation expense related to these RSU awards. The cash awards are accounted for as employee compensation expense and reported within “Research and development” on the Company’s Condensed Consolidated Statements of Income . For the three and nine months ended July 30, 2016 , the Company recognized $0.9 million and $3.4 million , respectively, of compensation expense related to these cash awards. For the three and nine months ended August 1, 2015 , the Company recognized $1.6 million and $2.0 million , respectively, of compensation expense related to these cash awards.

Goodwill And Intangible Assets

Goodwill And Intangible Assets	9 Months Ended
	Jul. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill And Intangible Assets	Goodwill and Intangible Assets The following table summarizes goodwill activity by reportable segment during the nine months ended July 30, 2016 (in thousands): Storage Area Networking (“SAN”) Products IP Networking Products Global Services Total Balance at October 31, 2015 Goodwill $ 176,325 $ 1,414,634 $ 155,416 $ 1,746,375 Accumulated impairment losses — (129,214 ) — (129,214 ) 176,325 1,285,420 155,416 1,617,161 Acquisitions (1) — 308,456 398,936 707,392 Tax adjustments (2) (5 ) — — (5 ) Translation adjustments — (233 ) — (233 ) Balance at July 30, 2016 Goodwill 176,320 1,722,857 554,352 2,453,529 Accumulated impairment losses — (129,214 ) — (129,214 ) $ 176,320 $ 1,593,643 $ 554,352 $ 2,324,315 (1) The goodwill acquired relates to the acquisitions completed in March 2016 and May 2016. See Note 3 , “ Acquisitions ,” of the Notes to Condensed Consolidated Financial Statements. (2) The goodwill adjustments were primarily a result of tax benefits from the exercise of stock awards of acquired companies. The Company conducts its goodwill impairment test annually and whenever events occur or facts and circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. Effective on the first day of the fourth fiscal quarter, the Company changed the date of its annual impairment test for goodwill from the first day of the second fiscal quarter to the first day of the fourth fiscal quarter. This change in the annual impairment test date was made to better coincide with the timing of when the Company prepares its annual budget and financial plans as part of its regular long-range planning process. For the annual goodwill impairment test, the Company uses the income approach, the market approach, or a combination thereof to determine each reporting unit’s fair value. The income approach provides an estimate of fair value based on discounted expected future cash flows (“DCF”). The market approach provides an estimate of fair value by applying various observable market-based multiples to the reporting unit’s operating results and then applying an appropriate control premium. For the initial fiscal year 2016 annual goodwill impairment test, the Company used a combination of these approaches to estimate each reporting unit’s fair value. At the time that the initial fiscal year 2016 annual goodwill impairment test was performed, the Company believed that the income approach and the market approach were equally representative of a reporting unit’s fair value. Determining the fair value of a reporting unit requires judgment and involves the use of significant estimates and assumptions. The Company based its fair value estimates on assumptions it believes to be reasonable but are inherently uncertain. Estimates and assumptions with respect to the determination of the fair value of its reporting units using the income approach include, among other inputs: • The Company’s operating forecasts; • The Company’s forecasted revenue growth rates; and • Risk-commensurate discount rates and costs of capital. The Company’s estimates of revenues and costs are based on historical data, various internal estimates, and a variety of external sources, and are developed as part of the Company’s regular long-range planning process. The control premium used in market or combined approaches was determined by considering control premiums offered as part of the acquisitions where acquired companies were comparable with the Company’s reporting units. Based on the results of the initial annual goodwill impairment analysis performed during the second fiscal quarter of 2016, the Company determined that no impairment needed to be recorded. As of July 30, 2016 , no new events had occurred nor had any facts or circumstances changed since the annual goodwill impairment analysis performed during the second quarter of fiscal year 2016 that indicated that the fair values of the reporting units may be less than their current carrying amounts. Intangible assets other than goodwill are amortized on a straight-line basis over the following estimated remaining useful lives, unless the Company has determined these lives to be indefinite. The Company did not incur costs to renew or extend the term of any acquired finite-lived intangible assets during the nine months ended July 30, 2016 . The following tables present details of the Company’s intangible assets, excluding goodwill (in thousands, except for weighted-average remaining useful life): July 30, 2016 Gross Accumulated Net Weighted- Finite-lived intangible assets: Trade names $ 45,090 $ 1,105 $ 43,985 14.71 Core/developed technology (1) (2) 254,290 23,834 230,456 5.67 Patent portfolio license (3) 7,750 1,669 6,081 17.00 Customer relationships 141,110 8,805 132,305 6.52 Non-compete agreements 1,050 904 146 0.46 Patents with broader applications 1,040 92 948 13.63 Total finite-lived intangible assets 450,330 36,409 413,921 6.72 Indefinite-lived intangible assets, excluding goodwill: IPR&D (1) 21,000 — 21,000 Total indefinite-lived intangible assets, excluding goodwill 21,000 — 21,000 Total intangible assets, excluding goodwill $ 471,330 $ 36,409 $ 434,921 October 31, 2015 Gross Accumulated Net Weighted- Finite-lived intangible assets: Trade names $ 1,090 $ 415 $ 675 4.36 Core/developed technology 40,530 9,605 30,925 3.49 Patent portfolio license (3) 7,750 849 6,901 17.74 Customer relationships 23,110 2,484 20,626 7.18 Non-compete agreements 1,050 664 386 1.17 Patents with broader applications 1,040 40 1,000 14.38 Total finite-lived intangible assets 74,570 14,057 60,513 6.55 Indefinite-lived intangible assets, excluding goodwill: IPR&D (1) 15,110 — 15,110 Total indefinite-lived intangible assets, excluding goodwill 15,110 — 15,110 Total intangible assets, excluding goodwill $ 89,680 $ 14,057 $ 75,623 (1) Acquired IPR&D are intangible assets accounted for as indefinite-lived assets until the completion or abandonment of the associated research and development efforts. If the research and development efforts associated with the IPR&D are successfully completed, then the IPR&D intangible assets will be amortized over the estimated useful lives to be determined as of the date the efforts are completed. During the three months ended July 30, 2016 , the Company acquired $23.0 million in IPR&D intangible assets in connection with the acquisition of Ruckus. The research and development efforts associated with these IPR&D intangible assets are expected to be completed in fiscal years 2016 and 2017. During the nine months ended July 30, 2016 , research and development efforts were completed on $17.1 million of the IPR&D intangible assets, and the completed IPR&D intangible assets are being amortized as core/developed technology over the estimated useful lives of five to seven years. (2) During the nine months ended July 30, 2016 , $1.0 million of finite-lived intangible assets became fully amortized and, therefore, were removed from the balance sheet. (3) The patent portfolio license was assigned an estimated useful life that reflects the Company’s consumption of the expected defensive benefits related to this license to certain patents. The method of amortization for the patent portfolio license reflects the Company’s estimate of the pattern in which these expected defensive benefits will be used by the Company and is primarily based on the mix of expiration patterns of the individual patents included in the license. The Company conducts the IPR&D impairment test annually and whenever events occur or facts and circumstances indicate that it is more likely than not that the IPR&D is impaired. Effective on the first day of the fourth fiscal quarter, the Company changed the date of its annual impairment test for IPR&D from the first day of the second fiscal quarter to the first day of the fourth fiscal quarter. This change in the annual impairment test date was made to better coincide with the timing of when the Company prepares its annual budget and financial plans as part of its regular long-range planning process. For the annual IPR&D impairment test, the Company elects the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of the IPR&D assets is less than the carrying amount. If, after assessing the totality of events and circumstances, the Company determines that it is more likely than not that the fair value of the IPR&D assets is less than the carrying amount, then the Company conducts a quantitative analysis to determine the fair value of the IPR&D assets. If the carrying amount of the IPR&D assets exceeds the fair value, then the Company recognizes an impairment loss equal to the difference. The Company has not identified any changes in circumstances requiring an interim IPR&D impairment test for the nine months ended July 30, 2016 , and therefore, the Company determined that no impairment needed to be recorded. The amortization of finite-lived intangible assets is included in the following line items of the Company’s Condensed Consolidated Statements of Income as follows (in thousands): Three Months Ended Nine Months Ended July 30, 2016 August 1, 2015 July 30, 2016 August 1, 2015 Cost of revenues $ 8,922 $ 2,549 $ 15,269 $ 5,043 General and administrative (1) 271 889 821 1,654 Amortization of intangible assets 5,498 280 7,302 570 Total $ 14,691 $ 3,718 $ 23,392 $ 7,267 (1) The amortization is related to the $7.8 million of perpetual, non-exclusive license to certain patents purchased during the fiscal year ended October 31, 2015. The following table presents the estimated future amortization of finite-lived intangible assets as of July 30, 2016 (in thousands): Fiscal Year Estimated Future Amortization 2016 (remaining three months) $ 18,998 2017 72,063 2018 63,562 2019 60,039 2020 59,082 Thereafter 140,177 Total $ 413,921

Balance Sheet Details

Balance Sheet Details	9 Months Ended
	Jul. 30, 2016
Balance Sheet Details [Abstract]
Balance Sheet Details	Balance Sheet Details The following tables provide details of selected balance sheet items (in thousands): July 30, October 31, Inventories: Raw materials $ 17,613 $ 18,788 Finished goods 63,569 21,736 Inventories $ 81,182 $ 40,524 July 30, October 31, Property and equipment, net: Gross property and equipment Computer equipment $ 18,886 $ 14,820 Software 84,337 67,625 Engineering and other equipment (1) 443,808 407,342 Furniture and fixtures (1) 33,468 31,028 Leasehold improvements 37,315 33,986 Land and building 386,163 385,415 Total gross property and equipment 1,003,977 940,216 Accumulated depreciation and amortization (1) (2) (544,165 ) (500,992 ) Property and equipment, net $ 459,812 $ 439,224 (1) Engineering and other equipment, furniture and fixtures, and accumulated depreciation and amortization include the following amounts under capital leases as of July 30, 2016 , and October 31, 2015 (in thousands): July 30, October 31, Cost of capitalized leases $ 270 $ 1,312 Accumulated depreciation (255 ) (857 ) Property and equipment, net, under capital leases $ 15 $ 455 (2) The following table presents the depreciation of property and equipment included in the Company’s Condensed Consolidated Statements of Income (in thousands): Three Months Ended Nine Months Ended July 30, August 1, July 30, August 1, Depreciation expense $ 20,393 $ 18,605 $ 57,531 $ 55,302

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Jul. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company applies fair value measurements for both financial and non-financial assets and liabilities. The Company does not have any non-financial assets or liabilities that are required to be measured at fair value on a recurring basis as of July 30, 2016 . The fair value accounting guidance permits companies to elect fair value measurement for many financial instruments and certain other items that are not required to be accounted for at fair value. The Company did not elect fair value measurement for any eligible financial instruments or other assets. Fair Value Hierarchy The Company utilizes a fair value hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. During the nine months ended July 30, 2016 , the Company had no transfers between levels of the fair value hierarchy of its assets and liabilities measured at fair value. Assets and liabilities measured and recorded at fair value on a recurring basis as of July 30, 2016 , were as follows (in thousands): Fair Value Measurements Using Balance as of Quoted Prices in Significant Other Significant Assets: Money market funds (1) $ 885,152 $ 885,152 $ — $ — Derivative assets 477 — 477 — Total assets measured at fair value $ 885,629 $ 885,152 $ 477 $ — Liabilities: Derivative liabilities $ 759 $ — $ 759 $ — (1) Money market funds are reported within “Cash and cash equivalents” on the Company’s Condensed Consolidated Balance Sheets. Assets and liabilities measured and recorded at fair value on a recurring basis as of October 31, 2015 , were as follows (in thousands): Fair Value Measurements Using Balance as of Quoted Prices in Significant Other Significant Assets: Money market funds (1) $ 1,184,410 $ 1,184,410 $ — $ — Derivative assets 709 — 709 — Total assets measured at fair value $ 1,185,119 $ 1,184,410 $ 709 $ — Liabilities: Derivative liabilities $ 1,125 $ — $ 1,125 $ — (1) Money market funds are reported within “Cash and cash equivalents” on the Company’s Condensed Consolidated Balance Sheets.

Restructuring and Other Costs

Restructuring and Other Costs	9 Months Ended
	Jul. 30, 2016
Restructuring and Related Activities [Abstract]
Restructuring and Other Costs	Restructuring and Other Related Benefits The following table provides details of “ Restructuring and other related benefits ” included in the Company’s Condensed Consolidated Statements of Income (in thousands): Three Months Ended Nine Months Ended July 30, August 1, July 30, August 1, Lease loss reserve and related benefits $ — $ — $ (566 ) $ (637 ) The following table provides a reconciliation of the Company’s beginning and ending restructuring liability balances (in thousands): Fiscal 2013 Fourth Quarter Restructuring Plan Other Restructuring Plans Severance and Benefits Lease Loss Reserve and Related Costs Lease Loss Reserve and Related Costs Total Restructuring liabilities at October 31, 2015 $ 110 $ 1,811 $ 408 $ 2,329 Restructuring and other related benefits — (566 ) — (566 ) Cash payments — (380 ) (260 ) (640 ) Translation adjustment — (17 ) — (17 ) Restructuring liabilities at July 30, 2016 $ 110 $ 848 $ 148 $ 1,106 Current restructuring liabilities at July 30, 2016 $ 110 $ 350 $ 148 $ 608 Non-current restructuring liabilities at July 30, 2016 $ — $ 498 $ — $ 498 Fiscal 2013 Fourth Quarter Restructuring Plan During the fiscal year ended October 26, 2013, and the first quarter of fiscal year 2014, the Company restructured certain business operations and reduced the Company’s operating expense structure. The restructuring plan included a workforce reduction, as well as the cancellation of certain non-recurring engineering agreements and exits from certain leased facilities. The restructuring plan was substantially completed in the first quarter of fiscal year 2014. Other Restructuring Plans The Company also recorded charges related to estimated facilities lease losses, net of expected sublease income, due to consolidation of real estate space as a result of acquisitions. Cash payments for facilities that are part of the Company’s lease loss reserve are expected to be paid over the respective lease terms through fiscal year 2021. General The Company reevaluates its estimates and assumptions on a quarterly basis and makes adjustments to the restructuring liabilities balance if necessary. During the nine months ended July 30, 2016 , the Company reversed $0.6 million of charges related to estimated facilities lease losses due to a change in lease terms for a certain facility.

Borrowings

Borrowings	9 Months Ended
	Jul. 30, 2016
Debt Disclosure [Abstract]
Borrowings	Borrowings The following table provides details of the Company’s long-term debt (in thousands, except years and percentages): July 30, 2016 October 31, 2015 Maturity Stated Annual Interest Rate Amount Effective Interest Rate Amount Effective Interest Rate Senior Credit Facility: Term Loan Facility 2021 variable $ 800,000 2.50 % $ — — % Convertible Senior Unsecured Notes: 2020 Convertible Notes 2020 1.375% 575,000 4.98 % 575,000 4.98 % Senior Unsecured Notes: 2023 Notes 2023 4.625% 300,000 4.83 % 300,000 4.83 % Capital lease obligations 2016 4.625% 16 4.63 % 298 4.63 % Total gross long-term debt 1,675,016 875,298 Unamortized discount (78,755 ) (79,196 ) Unamortized debt issuance costs (2,873 ) (2,025 ) Current portion of long-term debt (76,627 ) (298 ) Long-term debt, net of current portion $ 1,516,761 $ 793,779 Senior Credit Facility In connection with the acquisition of Ruckus on May 27, 2016, the Company entered into a Credit Agreement (the “Credit Agreement”) with Wells Fargo Bank, N.A., as the administrative agent, swingline lender, and issuing lender, and certain other lenders (collectively, the “Lenders”). The Credit Agreement provides for a term loan facility of $800 million (the “Term Loan Facility”) and a revolving credit facility of $100 million (the “Revolving Facility,” and together with the Term Loan Facility, the “Senior Credit Facility”). The Revolving Facility includes a $25 million letter of credit subfacility and a $10 million swing line loan subfacility. The proceeds of the Term Loan Facility were used to finance a portion of the acquisition of Ruckus and related fees and expenses, the repurchase of shares of the Company’s common stock, and fees and expenses related to the Senior Credit Facility. Loans made under the Senior Credit Facility bear interest, at the Company’s option, either (i) at a base rate which is based in part on the greatest of (A) the prime rate, (B) the federal funds rate plus 0.50%, or (C) LIBOR for an interest period of one month plus 1.00%, plus an applicable margin that will vary between 0.00% and 0.75% based on the Company’s total leverage ratio or (ii) at a LIBOR-based rate, plus an applicable margin that will vary between 1.00% and 1.75% based on the Company’s total leverage ratio. For purposes of calculating the applicable rate, the base rate and LIBOR-based rate are subject to a floor of 0.00%. For base rate loans, interest is payable on the last business day of January, April, July and October of each year. For LIBOR rate loans, interest is payable on the last day of each interest period for the LIBOR-based rate, and if such interest period extends over three months, at the end of each three-month interval during such interest period. Commitments under the Revolving Facility are subject to an undrawn commitment fee starting at 0.30% , and are later subject to adjustment between 0.20% and 0.35% based on the Company’s total leverage ratio. Letters of credit issued under the letter of credit subfacility are subject to a commission fee starting at 1.50% , and are later subject to adjustment between 1.00% and 1.75% based on the Company’s total leverage ratio, and an issuance fee of 0.125% . The final maturity of the Senior Credit Facility will occur on May 27, 2021, except that if any of the 1.375% convertible senior unsecured notes due 2020 remain outstanding on October 2, 2019, and certain other conditions have not been met, then the final maturity of the Senior Credit Facility will occur on October 2, 2019. Notwithstanding the foregoing, upon the request of the Company made to all applicable Lenders, and provided that no event of default exists or will occur immediately thereafter, individual Lenders may agree to extend the maturity date of its commitments under the Revolving Facility and loans under the Term Loan Facility. The Company is permitted to make voluntary prepayments of the Senior Credit Facility at any time without payment of a premium or penalty. The Company is required to make mandatory prepayments of loans under the Term Loan Facility (without payment of a premium or penalty) with (i) net cash proceeds from issuances of debt (other than certain permitted debt), (ii) net cash proceeds from certain non-ordinary course asset sales (subject to reinvestment rights and other exceptions), and (iii) casualty proceeds and condemnation awards (subject to reinvestment rights and other exceptions). Commencing October 31, 2016, the loans under the Term Loan Facility will amortize in equal quarterly installments in an aggregate annual amount equal to 10% of the original principal amount thereof, with any remaining balance payable on the final maturity date of the loans under the Term Loan Facility. The loans under the Revolving Facility and all accrued and unpaid interest thereon are due in full on the maturity date. There were no principal amounts outstanding under the revolving credit facility, and the full $100 million was available for future borrowing under the revolving credit facility as of July 30, 2016 . No payments were made toward the principal of the Term Loan Facility during the nine months ended July 30, 2016 . As of July 30, 2016 , the fair value of the Term Loan Facility was approximately $786.5 million , which was estimated based on fair value for similar instruments. The obligations under the Senior Credit Facility and certain cash management and hedging obligations are fully and unconditionally guaranteed by certain of the Company’s direct and indirect subsidiaries (including Ruckus, but excluding certain immaterial subsidiaries, subsidiaries whose guarantee would result in material adverse tax consequences and subsidiaries whose guarantee is prohibited by applicable law) pursuant to a subsidiary guaranty agreement. The Company’s obligations under the Senior Credit Facility are unsecured, provided that upon the occurrence of certain events (including if the Company’s corporate family rating from Moody’s falls below Ba1 and from S&P falls below BB+ at any time (referred to as a “Ratings Downgrade”)) or the incurrence of certain indebtedness in excess of $600 million (such occurrence or the occurrence of a Ratings Downgrade being a “Collateral Trigger Event”), then such obligations, as well as certain cash management and hedging obligations, will be required to be secured, subject to certain exceptions, by 100% of the equity interests of all present and future restricted subsidiaries directly held by the Company or any guarantor. The Company must provide such security within 90 days (or 20 business days with respect to the equity interests of material U.S. subsidiaries) of such Collateral Trigger Event. The Credit Agreement contains financial maintenance covenants, including a (i) maximum total leverage ratio as of the last date of any fiscal quarter not to exceed 3.50:1.00; subject to certain step-downs to 3.25:1.00 and 3.00:1.00 for fiscal periods ending on or after April 30, 2017, and April 30, 2018, respectively, and (ii) a minimum interest coverage ratio of not less than 3.50:1.00. The Credit Agreement also contains restrictive covenants that limit, among other things, the Company’s and its restricted subsidiaries’ ability to: • Incur additional indebtedness or issue certain preferred equity, pay dividends or make other distributions or other restricted payments (including stock repurchases); • Sell assets other than on terms specified by the Credit Agreement; • Amend the terms of certain other indebtedness and organizational documents; • Create liens on certain assets to secure debt, consolidate, merge, sell, or otherwise dispose of all or substantially all of their assets; and • Enter into certain transactions with affiliates, or change their lines of business, fiscal years, and accounting practices, in each case, subject to customary exceptions. The Credit Agreement also sets forth customary events of default, including upon the failure to make timely payments under the Senior Credit Facility, the failure to satisfy certain covenants, cross-default and cross-acceleration to other material debt for borrowed money, the occurrence of a change of control, and specified events of bankruptcy and insolvency. Convertible Senior Unsecured Notes On January 14, 2015, the Company issued $575.0 million in aggregate principal amount of 1.375% convertible senior unsecured notes due 2020 (the “2020 Convertible Notes”) pursuant to an indenture, dated as of January 14, 2015, between the Company and Wells Fargo Bank, National Association, as the trustee (the “Offering”). Net of an original issue discount, the Company received $565.7 million in proceeds from the Offering. Concurrently with the closing of the Offering, the Company called for the redemption of its outstanding 6.875% senior secured notes due 2020 (the “2020 Notes”) and irrevocably deposited a portion of the net proceeds from the Offering with the trustee to discharge the 2020 Indenture as described below under “ Senior Secured Notes. ” The 2020 Convertible Notes bear interest payable semiannually on January 1 and July 1 of each year, beginning on July 1, 2015. No payments were made toward the principal of the 2020 Convertible Notes during the nine months ended July 30, 2016 . The Company separately accounts for the liability and equity components of the 2020 Convertible Notes. The fair value of the liability component, used in the allocation between the liability and equity components as of the date of issuance, was based on the present value of cash flows using a discount rate of 4.57% , the Company’s borrowing rate for a similar debt instrument without the conversion feature. The carrying values of the liability and equity components of the 2020 Convertible Notes are as follows (in thousands): July 30, October 31, Principal $ 575,000 $ 575,000 Unamortized discount of the liability component (63,706 ) (76,311 ) Net carrying amount of liability component $ 511,294 $ 498,689 Carrying amount of equity component $ 59,293 $ 70,765 As of July 30, 2016 , the remaining period of amortization for the discount is 3.42 years. The following table presents the amount of interest cost recognized for amortization of the discount and for the contractual interest coupon for the 2020 Convertible Notes for the following periods (in thousands): Three Months Ended Nine Months Ended July 30, August 1, July 30, August 1, Amortization of discount $ 4,254 $ 4,048 $ 12,606 $ 8,792 Contractual interest coupon $ 1,977 $ 1,977 $ 5,930 $ 4,323 As of July 30, 2016 , and October 31, 2015 , the fair value of the 2020 Convertible Notes was approximately $560.4 million and $568.0 million , respectively, which was estimated based on broker trading prices. The 2020 Convertible Notes mature on January 1, 2020 , unless repurchased or converted in accordance with their terms prior to such date. The 2020 Convertible Notes are not callable prior to their maturity. The 2020 Convertible Notes are convertible into shares of common stock of the Company under the circumstances described below. The initial conversion rate is 62.7746 shares of the Company’s common stock per $1,000 principal amount of the notes, which is equal to 36.1 million shares at an initial conversion price of approximately $15.93 per share. The 2020 Convertible Notes contain provisions where the conversion rate is adjusted upon the occurrence of certain events, including if the Company pays a regular, quarterly cash dividend in an amount greater than $0.035 per share. During the third fiscal quarter of 2016, the Board of Directors of the Company declared and paid a cash dividend in the amount of $0.055 per share. Accordingly, as of June 8, 2016 , the conversion rate was adjusted to a rate of 63.1587 shares of the Company’s common stock per $1,000 principal amount of the notes, which is equal to 36.3 million shares at a conversion price of approximately $15.83 per share. The adjustment resulted in a change to the conversion rate of less than 1%, and by the terms of the indenture governing the 2020 Convertible Notes, the Company is allowed and elected to defer the noteholder notification of such adjustment until the occurrence of (i) a subsequent adjustment to the conversion rate that results in a cumulative adjustment of at least 1% of the current conversion rate, (ii) the conversion of any 2020 Convertible Note, or (iii) certain other events requiring the adjustment to be made under the indenture governing the 2020 Convertible Notes. Holders of the 2020 Convertible Notes may convert all or a portion of their notes prior to the close of business on the business day immediately preceding September 1, 2019, in multiples of $1,000 principal amount, only under the following circumstances: • During any fiscal quarter commencing after the fiscal quarter ending on May 2, 2015 (and only during such fiscal quarter), if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price of the notes on each applicable trading day; • During the five -business-day period after any 10 consecutive trading day period in which the trading price per $1,000 principal amount of the notes for each trading day of that 10 consecutive trading day period was less than 98% of the product of the last reported sale price of the Company’s common stock and the conversion rate of the notes on each such trading day; or • Upon the occurrence of certain corporate events as specified in the terms of the indenture governing the 2020 Convertible Notes. On or after September 1, 2019, through the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their notes regardless of the foregoing conditions. As of July 30, 2016 , the circumstances for conversion had not been triggered, and the 2020 Convertible Notes were not convertible. The if-converted value of the 2020 Convertible Notes as of July 30, 2016 , did not exceed the principal amount of the 2020 Convertible Notes. If a fundamental change, as specified in the terms of the indenture governing the 2020 Convertible Notes, occurs prior to the maturity date, holders of the notes may require the Company to repurchase the 2020 Convertible Notes at a repurchase price equal to 100% of the principal amount of the 2020 Convertible Notes repurchased, plus accrued and unpaid interest, if any, up to the repurchase date. As of July 30, 2016 , a fundamental change had not occurred and the 2020 Convertible Notes were not re-purchasable. Convertible Note Hedge and Warrants Related to the Convertible Senior Unsecured Notes In connection with the issuance of the 2020 Convertible Notes, the Company entered into convertible note hedge transactions with certain financial institutions (the “counterparties”) with respect to its common stock. Upon conversion of the 2020 Convertible Notes, the convertible note hedge transactions give the Company the right to acquire from the counterparties, subject to anti-dilution adjustments substantially similar to those in the 2020 Convertible Notes, initially approximately 36.1 million shares of the Company’s common stock at an initial strike price of $15.93 per share. Because a dividend in an amount greater than $0.035 per share was declared and paid effective beginning in the third fiscal quarter of 2015, the strike price under the convertible note hedge transactions has been adjusted to approximately $15.83 per share as of June 8, 2016 . The convertible note hedge transactions are expected generally to reduce the potential common stock dilution and/or offset potential cash payments in excess of the principal amount of converted notes upon conversion of the notes in the event that the market price per share of the Company’s common stock, as measured under the terms of the convertible note hedge transactions, is greater than the strike price of the convertible note hedge transactions. The convertible note hedge transactions will be terminated on the maturity date of the 2020 Convertible Notes or earlier under certain circumstances. The $86.1 million cost of the convertible note hedge transactions has been accounted for as an equity transaction. Separately from the convertible note hedge transactions, the Company entered into warrant transactions with the counterparties, pursuant to which the Company sold warrants to the counterparties to acquire, subject to customary anti-dilution adjustments, up to 36.1 million shares in the aggregate at an initial strike price of $20.65 per share. The primary reason the Company entered into these warrant transactions was to partially offset the cost of the convertible note hedge transactions. The warrants mature over 60 trading days, commencing on April 1, 2020 , and are exercisable solely on the maturity dates. The warrants are subject to net share settlement; however, the Company may elect to cash settle the warrants. The Company received gross proceeds of $51.2 million from the warrant transactions, which have been accounted for as an equity transaction. Under the terms of the warrants, the strike price and number of shares to be acquired by the holders of the warrants are adjusted if the Company pays a regular, quarterly cash dividend in an amount greater than $0.035 per share. Accordingly, the terms of the warrants were adjusted to reflect the payment of a cash dividend in the amount of $0.045 per share beginning in the third fiscal quarter of 2015, and, as of June 8, 2016 , the holders of the warrants have the right to acquire up to approximately 36.3 million shares of the Company’s common stock at a strike price of approximately $20.52 per share. See Note 15 , “ Net Income per Share ,” of the Notes to Condensed Consolidated Financial Statements for further discussion of the dilutive impact of the 2020 Convertible Notes and the convertible note hedge and warrant transactions. Senior Unsecured Notes In January 2013, the Company issued 4.625% senior unsecured notes in the aggregate principal amount of $300.0 million due 2023 (the “2023 Notes”) pursuant to an indenture, dated as of January 22, 2013 (the “2023 Indenture”), between the Company, certain domestic subsidiaries of the Company that have guaranteed the Company’s obligations under the 2023 Notes, and Wells Fargo Bank, National Association, as the trustee. The guarantees of the 2023 Notes were released upon the termination of the Senior Secured Credit Facility and discharge of the 2020 Indenture in the first fiscal quarter of 2015. The 2023 Notes bear interest payable semiannually on January 15 and July 15 of each year. No payments were made toward the principal of the 2023 Notes during the nine months ended July 30, 2016 . As of July 30, 2016 , and October 31, 2015 , the fair value of the 2023 Notes was approximately $296.2 million and $293.9 million , respectively, which was estimated based on broker trading prices. On or after January 15, 2018, the Company may redeem all or part of the 2023 Notes at the redemption prices set forth in the 2023 Indenture, plus accrued and unpaid interest, if any, up to the redemption date. At any time prior to January 15, 2018, the Company may redeem all or a part of the 2023 Notes at a price equal to 100% of the principal amount of the 2023 Notes, plus an applicable premium and accrued and unpaid interest, if any, up to the redemption date. If the Company experiences a specified change of control triggering event, it must offer to repurchase the 2023 Notes at a repurchase price equal to 101% of the principal amount of the 2023 Notes repurchased, plus accrued and unpaid interest, if any, up to the repurchase date. The 2023 Indenture contains covenants that, among other things, restrict the ability of the Company and its subsidiaries to: • Incur certain liens and enter into certain sale-leaseback transactions; • Create, assume, incur, or guarantee additional indebtedness of the Company’s subsidiaries without such subsidiaries guaranteeing the 2023 Notes on a pari passu basis; and • Enter into certain consolidation or merger transactions, or convey, transfer, or lease all or substantially all of the Company’s or its subsidiaries’ assets. These covenants are subject to a number of limitations and exceptions as set forth in the 2023 Indenture. The 2023 Indenture also includes customary events of default, including cross-defaults to other debt of the Company and its subsidiaries. Senior Secured Notes In January 2010, the Company issued $300.0 million in aggregate principal amount of the 2020 Notes pursuant to an indenture, dated as of January 20, 2010, between the Company, certain domestic subsidiaries of the Company, and Wells Fargo Bank, National Association, as the trustee (the “2020 Indenture”). Interest on the 2020 Notes was payable semiannually on January 15 and July 15 of each year. The Company’s obligations under the 2020 Notes were previously guaranteed by certain of the Company’s domestic subsidiaries and secured by a lien on substantially all of the Company’s and the subsidiary guarantors’ assets. On January 14, 2015, the Company called the 2020 Notes for redemption at a redemption price equal to 103.438% of the principal amount of the 2020 Notes, and irrevocably deposited $322.2 million with the trustee for the 2020 Notes to discharge the 2020 Indenture. Due to the deposit and discharge, the guarantees provided by certain of the Company’s domestic subsidiaries, and the liens granted by the Company and the subsidiary guarantors to secure their obligations with respect to the 2020 Notes, were released as of the date of the deposit. The amount deposited with the trustee included $300.0 million to repay the principal amount of the 2020 Notes, $10.3 million representing the difference between the redemption price and the principal amount of the 2020 Notes (“Call Premium”), $10.3 million for accrued interest through January 15, 2015, and $1.6 million of interest payable up to the redemption date of February 13, 2015. The trustee redeemed the 2020 Notes on February 13, 2015, using the deposited amount, extinguishing the Company’s $300.0 million liability for the principal amount of the 2020 Notes. In accordance with the applicable accounting guidance for debt modification and extinguishment, and for interest costs accounting, the Company expensed the Call Premium, remaining debt issuance costs, and remaining original issue discount relating to the 2020 Notes in the first quarter of fiscal year 2015, which totaled $20.4 million . The Company reported this expense within “Interest expense” on the Company’s Condensed Consolidated Statements of Income for the nine months ended August 1, 2015 . Debt Maturities As of July 30, 2016 , the Company’s aggregate debt maturities based on outstanding principal were as follows (in thousands): Fiscal Year Principal Balances 2016 (remaining three months) $ 20,016 2017 80,000 2018 80,000 2019 80,000 2020 655,000 Thereafter 760,000 Total $ 1,675,016

Commitments And Contingencies

Commitments And Contingencies	9 Months Ended
	Jul. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments And Contingencies	Commitments and Contingencies Product Warranties The Company’s accrued liability for estimated future warranty costs is included in “Other accrued liabilities” in the accompanying Condensed Consolidated Balance Sheets. The following table summarizes the activity related to the Company’s accrued liability for estimated future warranty costs during the nine months ended July 30, 2016 , and August 1, 2015 (in thousands): Accrued Warranty Nine Months Ended July 30, August 1, Beginning balance $ 7,599 $ 7,486 Warranty liability assumed from acquisitions 760 — Liabilities accrued for warranties issued during the period 2,768 3,059 Warranty claims paid and used during the period (2,736 ) (3,221 ) Changes in liability for pre-existing warranties during the period (60 ) (125 ) Ending balance $ 8,331 $ 7,199 In addition, the Company has defense and indemnification clauses contained within its various customer contracts. As such, the Company indemnifies the parties to whom it sells its products with respect to the Company’s products, both alone and in certain circumstances when in combination with other products and services, for infringement of any patents, trademarks, copyrights, or trade secrets, as well as against bodily injury or damage to real or tangible personal property caused by a defective Company product. As of July 30, 2016 , there have been no known events or circumstances that have resulted in a material customer contract-related indemnification liability to the Company. Manufacturing and Purchase Commitments Brocade has manufacturing arrangements with its CMs under which Brocade provides product forecasts and places purchase orders in advance of the scheduled delivery of products to Brocade’s customers. The required lead time for placing orders with the CMs depends on the specific product. Brocade issues purchase orders, and the CMs then generate invoices based on prices and payment terms mutually agreed upon and set forth in those purchase orders. Although the purchase orders Brocade places with its CMs are cancellable, the terms of the agreements require Brocade to purchase all inventory components that are not returnable, usable by, or sold to other customers of the CMs. In addition, Brocade has an arrangement with one of its CMs regarding factory capacity that can be used by the Company. Under this arrangement, the Company receives a credit for exceeding the planned utilization of factory capacity and, conversely, is required to pay additional fees for underutilizing the planned capacity. As of July 30, 2016 , the Company’s aggregate commitment to its CMs for inventory components used in the manufacture of Brocade products was $220.0 million , which the Company expects to utilize during future normal ongoing operations, net of a purchase commitments reserve of $3.6 million , which is reported within “Other accrued liabilities” on the Company’s Condensed Consolidated Balance Sheet as of July 30, 2016 . The Company’s purchase commitments reserve reflects the Company’s estimate of purchase commitments it does not expect to utilize in normal ongoing operations. Income Taxes The Company is subject to several ongoing income tax audits and has received notices of proposed adjustments or assessments from certain tax authorities. For additional discussion, see Note 13 , “ Income Taxes ,” of the Notes to Condensed Consolidated Financial Statements. The Company believes it has adequate reserves for all open tax years. Legal Proceedings From time to time, the Company is subject to various legal proceedings and claims, including those identified below, which arise in the ordinary course of business, including claims of alleged infringement of patents and/or other intellectual property rights and commercial and employment contract disputes. The Company accrues a liability when management believes that it is both probable that a liability has been incurred and the amount of loss can be reasonably estimated. The Company believes it has recorded adequate provisions for any such matters and, as of July 30, 2016 , it was not reasonably possible that a material loss had been incurred in excess of the amounts recognized in the Company’s financial statements. However, litigation is inherently uncertain, and the outcome of these matters cannot be predicted with certainty. Accordingly, cash flows or results of operations could be materially affected in any particular period by the resolution of one or more of these matters. Ruckus Acquisition-Related Litigation Subsequent to the announcement that Brocade had entered into an agreement to acquire Ruckus on April 3, 2016, three putative stockholder class action complaints relating to the acquisition were filed on behalf of purported Ruckus stockholders in the Superior Court of California, County of Santa Clara, a fourth putative stockholder class action complaint was filed in the United States District Court for the District of Delaware, and a fifth putative class action complaint was filed in the United States District Court for the Northern District of California. The complaints in the three California state court actions are captioned: Maguire v. Ruckus Wireless, Inc., et al. (filed April 12, 2016 and amended on May 10, 2016; referred to as the “Maguire action”); Jaljouli v. Ruckus Wireless, Inc., et al., (filed April 19, 2016; referred to as the “Jaljouli action”); and Small v. Ruckus Wireless, Inc., et al. (filed May 12, 2016; referred to as the “Small action”). The complaint in the Delaware federal court action is captioned Borrego v. Ruckus Wireless, Inc., et al. (filed May 11, 2016; referred to as the “Borrego action”). The complaint in the California federal court action is captioned Hussey v. Ruckus Wireless, Inc., et al. (filed June 3, 2016; referred to as the “Hussey action”). The complaints in the Maguire, Jaljouli and Small actions contain similar allegations and name Ruckus and members of the Ruckus board of directors as defendants; the Maguire and Jaljouli actions also name Brocade and a Brocade subsidiary as defendants. In general, the complaints allege that the members of the Ruckus board of directors breached their fiduciary duties to Ruckus stockholders by purportedly doing one or more of the following: agreeing to unfair and inadequate transaction consideration for the Ruckus shares; accepting unreasonable deal protection measures in the merger agreement that would dissuade other potential bidders from making competing offers; failing to properly value Ruckus and take steps to maximize the sale value of Ruckus; engaging in self-dealing; and providing allegedly false, misleading, and/or incomplete disclosures regarding the transaction, the negotiations leading up to it, and the opinion of Ruckus’ financial advisor. The complaints in the Maguire and Jaljouli actions also allege that one or more of Ruckus, Brocade, and the Brocade subsidiary aided and abetted the members of the Ruckus board of directors in breaching their fiduciary duties to Ruckus stockholders. The complaint in the Borrego action alleges that Ruckus and members of the Ruckus board of directors violated Sections 14(e), 14(d)(4) and 20(a) of the Exchange Act based on allegedly false and/or misleading statements and/or alleged omissions in the Solicitation/Recommendation Statement on Schedule 14D-9 filed by Ruckus with the SEC on April 29, 2016. The complaint in the Hussey action, which names Ruckus, members of the Ruckus board of directors, Ruckus’ chief financial officer, Brocade, and a Brocade subsidiary as defendants, contains a similar Section 14(e) claim and also alleges that the defendants violated Section14(d)(7) of the Exchange Act and Rule 14d-10 promulgated thereunder based on the allegedly differential consideration received by members of the Ruckus board of directors and Ruckus’ chief financial officer in connection with the acquisition. The plaintiffs in one or more of these five actions have requested relief including, among other things, certification as a class, rescission and invalidation of the merger agreement or related agreements, injunctive relief, imposition of a constructive trust, an award of damages and an accounting, an award of the costs and disbursements of the action (including reasonable attorneys’ and experts’ fees), and other equitable relief that the court may deem just and proper. The Small action was voluntarily dismissed by the plaintiff on August 29, 2016. Ruckus Acquisition-Related Appraisal Demand On May 25, 2016, Ruckus received an appraisal demand letter seeking an appraisal under Section 262 of the Delaware General Corporation Law (“Section 262”) of the fair value of 3.2 million Ruckus shares purported to be beneficially owned by a shareholder (the “Dissenter”) that purportedly dissented from the merger of Ruckus with and into a wholly-owned subsidiary of the Company. Under Section 262, the Dissenter is entitled to have those shares appraised by the Delaware Court of Chancery and receive payment of the “fair value” of such shares together with statutory interest as determined by the Delaware Court of Chancery, provided that Dissenter complies with the requirements of Section 262. The Company is not aware of any action being commenced in the Delaware Court of Chancery relating to the Dissenter’s appraisal demand. If the Dissenter does not timely and properly commence and prosecute to judgment such an appraisal action, the Dissenter may be entitled to receive $6.45 in cash and 0.75 shares of Brocade common stock with respect to each of the 3.2 million shares subject to its appraisal demand, with an aggregate value of $41.3 million as of July 30, 2016 . Otherwise, the dollar amount that the Company may be required to pay to the Dissenter will be determined by the Delaware Court of Chancery and may be more than, less than, or equal to that amount.

Derivative Instruments And Hedg

Derivative Instruments And Hedging Activities	9 Months Ended
	Jul. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments And Hedging Activities	Derivative Instruments and Hedging Activities In the normal course of business, the Company is exposed to fluctuations in interest rates and the exchange rates associated with foreign currencies. The Company’s primary objective for holding derivative financial instruments is to manage foreign currency exchange rate risk. The Company currently does not manage its exposure to credit risk by entering into derivative instruments. However, the Company manages its exposure to credit risk through its investment policies. As part of these investment policies, the Company generally enters into transactions with high-credit quality counterparties and, by policy, limits the amount of credit exposure to any one counterparty based on its analysis of that counterparty’s relative credit standing. The amounts subject to credit risk related to derivative instruments are generally limited to the amounts, if any, by which a counterparty’s obligations exceed the Company’s obligations with that counterparty. Foreign Currency Exchange Rate Risk A majority of the Company’s revenue, expense, and capital purchasing activities are transacted in U.S. dollars. However, the Company is exposed to foreign currency exchange rate risk inherent in conducting business globally in numerous currencies. The Company is primarily exposed to foreign currency fluctuations related to operating expenses denominated in currencies other than the U.S. dollar, of which the most significant to its operations for the three and nine months ended July 30, 2016 , were the euro , the British pound , the Indian rupee , the Chinese yuan , the Singapore dollar , the Japanese yen , and the Swiss franc . The Company has established a foreign currency risk management program to protect against the volatility of future cash flows caused by changes in foreign currency exchange rates. This program reduces, but does not eliminate, the impact of foreign currency exchange rate movements. The Company utilizes a rolling hedge strategy for the majority of its foreign currency derivative instruments to hedge exposures to the variability in the U.S. dollar equivalent of anticipated non-U.S.-dollar-denominated cash flows. All of the Company’s foreign currency forward contracts are single delivery, which are settled at maturity involving one cash payment. The Company’s foreign currency risk management program includes foreign currency derivatives with a cash flow hedge accounting designation that utilizes foreign currency forward and option contracts to hedge exposures to the variability in the U.S. dollar equivalent of anticipated non-U.S.-dollar-denominated cash flows. These instruments generally have a maturity of less than 15 months . For these derivatives, the Company initially reports the after-tax gain or loss from the effective portion of the hedge as a component of accumulated other comprehensive loss in stockholders’ equity and reclassifies it into earnings in the same period in which the hedged transaction affects earnings. The tax effect allocated to cash flow hedge-related components of other comprehensive loss was not material for the three and nine months ended July 30, 2016, and August 1, 2015 . Ineffective cash flow hedges are included in the Company’s net income as part of “ Interest and other income, net .” The amount recorded on ineffective cash flow hedges was not material for the three and nine months ended July 30, 2016, and August 1, 2015 . Net losses relating to the effective portion of foreign currency derivatives, which are offset by net gains on the underlying exposures, are recorded in the Company’s Condensed Consolidated Statements of Income as follows (in thousands): Three Months Ended Nine Months Ended July 30, 2016 August 1, 2015 July 30, 2016 August 1, 2015 Cost of revenues $ (35 ) $ (141 ) $ (195 ) $ (605 ) Research and development (342 ) (206 ) (968 ) (273 ) Sales and marketing (120 ) (542 ) (764 ) (1,866 ) General and administrative (10 ) (52 ) (54 ) (135 ) Total $ (507 ) $ (941 ) $ (1,981 ) $ (2,879 ) Alternatively, the Company may choose not to hedge the foreign currency risk associated with its foreign currency exposures if the Company believes such exposure acts as a natural foreign currency hedge for other offsetting amounts denominated in the same currency or if the currency is difficult or too expensive to hedge. As a result of foreign currency fluctuations, the net foreign currency exchange gains and losses recorded as part of “ Interest and other income, net ” were losses of $0.2 million and $0.8 million for the three and nine months ended July 30, 2016 , respectively, and gains of $0.3 million and losses of $0.6 million for the three and nine months ended August 1, 2015 , respectively. As of July 30, 2016 , the Company had gross unrealized loss positions of $0.8 million and gross unrealized gain positions of $0.5 million included in “Other accrued liabilities” and “Prepaid expenses and other current assets,” respectively. Volume of Derivative Activity All derivatives are designated as hedging instruments as of July 30, 2016 , and October 31, 2015 . Total gross notional amounts, presented by currency, are as follows (in thousands): Derivatives Designated In U.S. dollars July 30, 2016 October 31, 2015 Euro $ 10,410 $ 40,961 British pound 9,940 46,330 Indian rupee 8,836 35,647 Chinese yuan 3,629 15,129 Singapore dollar 3,484 13,745 Japanese yen 2,606 8,809 Swiss franc 2,365 9,265 Total $ 41,270 $ 169,886

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Jul. 30, 2016
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Stockholders' Equity and Stock-Based Compensation	Stock-Based Compensation Stock-based compensation expense, net of estimated forfeitures, is included in the following line items of the Company’s Condensed Consolidated Statements of Income as follows (in thousands): Three Months Ended Nine Months Ended July 30, 2016 August 1, 2015 July 30, 2016 August 1, 2015 Cost of revenues $ 5,965 $ 3,955 $ 12,400 $ 9,757 Research and development 9,206 5,226 19,805 13,239 Sales and marketing 17,756 10,601 39,886 27,651 General and administrative 11,716 4,655 21,384 13,947 Total stock-based compensation expense $ 44,643 $ 24,437 $ 93,475 $ 64,594 The following table presents stock-based compensation expense, net of estimated forfeitures, by grant type (in thousands): Three Months Ended Nine Months Ended July 30, 2016 August 1, 2015 July 30, 2016 August 1, 2015 Stock options $ 3,291 $ 973 $ 4,727 $ 2,865 RSUs, including restricted stock units with market conditions 35,604 18,941 75,986 48,192 Employee stock purchase plan (“ESPP”) 5,748 4,523 12,762 13,537 Total stock-based compensation expense $ 44,643 $ 24,437 $ 93,475 $ 64,594 The following table presents the unrecognized compensation expense, net of estimated forfeitures, by grant type and the related weighted-average periods over which this expense is expected to be recognized as of July 30, 2016 (in thousands, except for the weighted-average period): Unrecognized Compensation Expense Weighted- Average Period (In years) Stock options $ 2,161 1.10 RSUs, including restricted stock units with market conditions $ 166,357 2.69 ESPP $ 24,497 1.21 The following table presents details on grants made by the Company for the following periods: Nine Months Ended July 30, 2016 August 1, 2015 Granted Weighted-Average Granted Weighted-Average Stock options 1,390 $ 1.36 1,117 $ 3.09 RSUs, including stock units with market conditions 17,879 $ 7.90 10,251 $ 11.53 The total intrinsic value of stock options exercised for the nine months ended July 30, 2016 , and August 1, 2015 , was $1.2 million and $2.9 million , respectively.

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Jul. 30, 2016
Equity [Abstract]
Stockholders' Equity	Stockholders’ Equity Dividends During the nine months ended July 30, 2016 , the Company’s Board of Directors declared the following dividends (in thousands, except per share amounts): Declaration Date Dividend per Share Record Date Total Amount Paid Payment Date November 22, 2015 $ 0.045 December 10, 2015 $ 18,429 January 4, 2016 February 16, 2016 $ 0.045 March 10, 2016 $ 18,016 April 4, 2016 May 18, 2016 $ 0.055 June 10, 2016 $ 25,261 July 5, 2016 Future dividends are subject to review and approval on a quarterly basis by the Company’s Board of Directors or a committee thereof. Convertible Note Hedge and Warrants Related to the Convertible Senior Unsecured Notes In connection with the issuance of the 2020 Convertible Notes, the Company entered into convertible note hedge and warrant transactions with certain financial institutions with respect to its common stock. See Note 8 , “ Borrowings ,” of the Notes to Condensed Consolidated Financial Statements for further discussion. Accumulated Other Comprehensive Loss The components of other comprehensive loss and related tax effects for the three months ended July 30, 2016 , and August 1, 2015 , are as follows (in thousands): Three Months Ended July 30, 2016 August 1, 2015 Before-Tax Amount Tax Expense Net-of-Tax Amount Before-Tax Amount Tax Expense Net-of-Tax Amount Unrealized gains (losses) on cash flow hedges: Change in unrealized gains and losses, foreign exchange contracts $ (715 ) $ 15 $ (700 ) $ (361 ) $ (53 ) $ (414 ) Net gains and losses reclassified into earnings, foreign exchange contracts (1) 507 (25 ) 482 941 (110 ) 831 Net unrealized gains (losses) on cash flow hedges (208 ) (10 ) (218 ) 580 (163 ) 417 Foreign currency translation adjustments (1,628 ) — (1,628 ) (492 ) — (492 ) Total other comprehensive income (loss) $ (1,836 ) $ (10 ) $ (1,846 ) $ 88 $ (163 ) $ (75 ) The components of other comprehensive loss and related tax effects for the nine months ended July 30, 2016 , and August 1, 2015 , are as follows (in thousands): Nine Months Ended July 30, 2016 August 1, 2015 Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Unrealized gains (losses) on cash flow hedges: Change in unrealized gains and losses, foreign exchange contracts $ (1,056 ) $ 21 $ (1,035 ) $ (2,558 ) $ 226 $ (2,332 ) Net gains and losses reclassified into earnings, foreign exchange contracts (1) 1,981 (150 ) 1,831 2,879 (335 ) 2,544 Net unrealized gains (losses) on cash flow hedges 925 (129 ) 796 321 (109 ) 212 Foreign currency translation adjustments (1,760 ) — (1,760 ) (5,781 ) — (5,781 ) Total other comprehensive loss $ (835 ) $ (129 ) $ (964 ) $ (5,460 ) $ (109 ) $ (5,569 ) (1) For classification of amounts reclassified from accumulated other comprehensive loss into earnings as reported on the Company’s Condensed Consolidated Statements of Income , see Note 10 , “ Derivative Instruments and Hedging Activities ,” of the Notes to Condensed Consolidated Financial Statements. The changes in accumulated other comprehensive loss by component, net of tax, for the nine months ended July 30, 2016 , and August 1, 2015 , are as follows (in thousands): Nine Months Ended July 30, 2016 August 1, 2015 Losses on Cash Flow Hedges Foreign Currency Translation Adjustments Total Accumulated Other Comprehensive Loss Losses on Cash Flow Hedges Foreign Currency Translation Adjustments Total Accumulated Other Comprehensive Loss Beginning balance $ (1,539 ) $ (23,463 ) $ (25,002 ) $ (1,907 ) $ (16,907 ) $ (18,814 ) Change in unrealized gains and losses (1,035 ) (1,760 ) (2,795 ) (2,332 ) (5,781 ) (8,113 ) Net gains and losses reclassified into earnings 1,831 — 1,831 2,544 — 2,544 Net current-period other comprehensive income (loss) 796 (1,760 ) (964 ) 212 (5,781 ) (5,569 ) Ending balance $ (743 ) $ (25,223 ) $ (25,966 ) $ (1,695 ) $ (22,688 ) $ (24,383 )

Income Taxes

Income Taxes	9 Months Ended
	Jul. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes In general, the Company’s provision for income taxes differs from the tax computed at the U.S. federal statutory tax rate due to state taxes, the effect of non-U.S. operations being taxed at rates lower than the U.S. federal statutory tax rate, non-deductible stock-based compensation expense, tax credits, and adjustments to unrecognized tax benefits. Earnings of the Company’s subsidiaries outside of the United States primarily relate to its European, Asia Pacific, and Japan businesses. The Company recorded an income tax benefit for the three months ended July 30, 2016 , primarily due to a discrete benefit from reserve releases as a result of reaching a settlement on certain transfer pricing issues with the Internal Revenue Service (“IRS”) and certain expired statute of limitations. The effective tax rate for the three and nine months ended July 30, 2016 , was lower than the U.S. federal statutory tax rate of 35% primarily due to a discrete benefit from reserve releases as a result of reaching a settlement on certain transfer pricing issues with the IRS and benefits from the federal research and development tax credit, which was permanently reinstated retroactive to January 1, 2015, by the passage of the Protecting Americans from Tax Hikes Act of 2015. The effective tax rate for the nine months ended July 30, 2016 , was higher compared with the effective tax rate for the nine months ended August 1, 2015 , primarily due to an increase in unrecognized tax benefits related to certain intercompany transactions during the nine months ended July 30, 2016 . The Company’s total gross unrecognized tax benefits, excluding interest and penalties, were $189.1 million as of July 30, 2016 . If the total gross unrecognized tax benefits as of July 30, 2016 , were recognized in the future, approximately $144.0 million would decrease the Company’s effective tax rate. The IRS and other tax authorities regularly examine the Company’s income tax returns. In June 2016, the Company reached agreement with the IRS on certain transfer pricing issues in the Company’s federal income tax returns for fiscal years 2009 and 2010. In October 2014, the Geneva Tax Administration issued its final assessments for fiscal years 2003 to 2012, disputing certain of the Company’s transfer pricing arrangements. In November 2014, the Company filed a protest to challenge the final assessments. The Company believes that reserves for unrecognized tax benefits are adequate for all open tax years. The timing of tax examinations, as well as the amounts and timing of related settlements, if any, are highly uncertain. Before the end of fiscal year 2016, it is reasonably possible that either certain audits will conclude or the statutes of limitations relating to certain tax examination periods will expire, or both. After the Company reaches settlement with the tax authorities, the Company expects to record a corresponding adjustment to its unrecognized tax benefits. Taking into consideration the inherent uncertainty as to settlement terms, the timing of payments, and the impact of such settlements on the uncertainty in income taxes, the Company estimates the range of potential decreases in underlying uncertainty in income tax is between $0 and $5 million in the next 12 months.

Segment Information

Segment Information	9 Months Ended
	Jul. 30, 2016
Segment Reporting [Abstract]
Segment Information	Segment Information Operating segments are defined as components of an enterprise for which separate financial information is available that is evaluated regularly by the Chief Operating Decision Maker (“CODM”), or decision-making group, in deciding how to allocate resources and in assessing performance. Financial decisions and the allocation of resources are based on the information from the Company’s internal management reporting system. Currently, the Company’s CODM is its Chief Executive Officer. Brocade is organized into three operating segments, each of which is an individually reportable segment: SAN Products, IP Networking Products, and Global Services. These reportable segments are organized principally by product category. The results of the Ruckus business are included in the IP Networking Products and Global Services reportable segments from the date of acquisition. At this time, the Company does not track its operating expenses by operating segments because management does not consider this information in its measurement of the performance of the operating segments. The Company also does not track all of its assets by operating segments. The majority of the Company’s assets as of July 30, 2016 , were attributable to its U.S. operations. Summarized financial information by reportable segment for the three and nine months ended July 30, 2016, and August 1, 2015 , based on the internal management reporting system, is as follows (in thousands): SAN Products IP Networking Products Global Services Total Three months ended July 30, 2016 Net revenues $ 282,114 $ 208,881 $ 99,726 $ 590,721 Cost of revenues 70,630 117,862 45,330 233,822 Gross margin $ 211,484 $ 91,019 $ 54,396 $ 356,899 Three months ended August 1, 2015 Net revenues $ 309,451 $ 153,749 $ 88,619 $ 551,819 Cost of revenues 73,657 70,586 35,672 179,915 Gross margin $ 235,794 $ 83,163 $ 52,947 $ 371,904 Nine months ended July 30, 2016 Net revenues $ 925,799 $ 474,556 $ 287,956 $ 1,688,311 Cost of revenues 223,806 240,991 127,489 592,286 Gross margin $ 701,993 $ 233,565 $ 160,467 $ 1,096,025 Nine months ended August 1, 2015 Net revenues $ 976,362 $ 431,319 $ 266,952 $ 1,674,633 Cost of revenues 233,150 198,631 109,056 540,837 Gross margin $ 743,212 $ 232,688 $ 157,896 $ 1,133,796

Net Income Per Share

Net Income Per Share	9 Months Ended
	Jul. 30, 2016
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	Net Income per Share The following table presents the calculation of basic and diluted net income per share (in thousands, except per share amounts): Three Months Ended Nine Months Ended July 30, August 1, July 30, August 1, Basic net income per share Net income $ 10,495 $ 91,667 $ 147,226 $ 255,974 Weighted-average shares used in computing basic net income per share 426,671 417,299 411,709 422,184 Basic net income per share $ 0.02 $ 0.22 $ 0.36 $ 0.61 Diluted net income per share Net income $ 10,495 $ 91,667 $ 147,226 $ 255,974 Weighted-average shares used in computing basic net income per share 426,671 417,299 411,709 422,184 Dilutive potential common shares in the form of stock options 1,227 1,772 1,329 1,777 Dilutive potential common shares in the form of other share-based awards 6,518 8,447 6,378 9,342 Weighted-average shares used in computing diluted net income per share 434,416 427,518 419,416 433,303 Diluted net income per share $ 0.02 $ 0.21 $ 0.35 $ 0.59 Antidilutive potential common shares in the form of: (1) Warrants issued in conjunction with the 2020 Convertible Notes (2) 36,316 36,125 36,251 26,453 Stock options 2,838 1,109 2,029 934 Other share-based awards 2,120 100 1,140 33 (1) These amounts are excluded from the computation of diluted net income per share. (2) In connection with the issuance of the 2020 Convertible Notes, the Company entered into convertible note hedge and warrant transactions as described in Note 8 , “ Borrowings .” The 2020 Convertible Notes have no impact on diluted earnings per share until the average quarterly price of the Company’s common stock exceeds the adjusted conversion price of $15.83 per share. If the common stock price exceeds this adjusted conversion price, then, prior to conversion, the Company will calculate the effect of the additional shares that may be issued using the treasury stock method. If the average price of the Company’s common stock exceeds $20.52 per share for a quarterly period, the Company’s weighted-average shares used in computing diluted net income per share will be impacted by the effect of the additional potential shares that may be issued related to the warrants using the treasury stock method. The convertible note hedge is not considered for purposes of the diluted earnings per share calculation, as its effect would be antidilutive.

Basis Of Presentation (Policies

Basis Of Presentation (Policies)	9 Months Ended
	Jul. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Fiscal Period Policy	The Company’s fiscal year is a 52- or 53-week period ending on the last Saturday in October or the first Saturday in November, respectively. As is customary for companies that use the 52/53-week convention, every fifth year is a 53-week year. Fiscal year 2016 is a 52-week fiscal year and fiscal year 2015 was a 52-week fiscal year. The Company’s next 53-week fiscal year will be fiscal year 2019 and its next 14-week quarter will be the second quarter of fiscal year 2019.
Consolidation Policy	The Company’s Condensed Consolidated Financial Statements include the accounts of Brocade and its wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. In May 2016, the Company entered into a joint venture agreement with Guiyang High-Tech Industrial Investment Group Co., Ltd. (“HTII”) to create Guizhou Huiling Technology Co., Ltd (“GHTC”). The Company consolidates its investment in GHTC as this is a variable interest entity, and the Company is the primary beneficiary.
Use of Estimates in Preparation of Condensed Consolidated Financial Statements	Use of Estimates in Preparation of Condensed Consolidated Financial Statements The preparation of the Company’s Condensed Consolidated Financial Statements and related disclosures in conformity with U.S. GAAP requires management to make estimates and judgments that affect the amounts reported in the Company’s Condensed Consolidated Financial Statements and accompanying notes. Estimates are used for, but not limited to, revenue recognition, sales allowances and programs, allowance for doubtful accounts, stock-based compensation, acquisition purchase price allocations, warranty obligations, inventory valuation and purchase commitments, restructuring costs, incentive compensation, facilities lease losses, impairment of goodwill and other indefinite-lived intangible assets, litigation, and income taxes. Actual results may differ materially from these estimates.

Summary of Significant Accoun23

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Jul. 30, 2016
Accounting Policies [Abstract]
Consolidation, Variable Interest Entity, Policy	Consolidation of Variable Interest Entities The Company uses a qualitative approach in assessing the consolidation requirement for variable interest entities. The approach focuses on identifying which enterprise has the power to direct the activities that most significantly impact the variable interest entity’s economic performance and which enterprise has the obligation to absorb losses or the right to receive benefits from the variable interest entity. In the event that the Company is the primary beneficiary of a variable interest entity, the assets, liabilities, and results of operations of the variable interest entity will be included in the Company’s consolidated financial statements.
New Accounting Pronouncements, Policy	New Accounting Pronouncements or Updates Recently Adopted In April 2014, the Financial Accounting Standards Board (“FASB”) issued an update to Accounting Standards Codification (“ASC”) 205, Presentation of Financial Statements , and ASC 360, Property, Plant, and Equipment: Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity . Under this update, a discontinued operation may include a component of an entity or a group of components of an entity, a business, or nonprofit activity. Only those disposals of components of an entity that represent a strategic shift that has, or will have, a major effect on an entity’s operations and financial results will be reported as discontinued operations in the financial statements. This update should be applied prospectively. The Company adopted this update in the first quarter of fiscal year 2016. There was no material impact on the Company’s financial position, results of operations, or cash flows. In April 2015, the FASB issued an update to ASC 835, Interest—Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs . Under this update, debt issuance costs are required to be presented as a direct deduction from the carrying amount of the related debt liability, consistent with the presentation of debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by this update. This update should be applied retrospectively to all prior periods presented in the financial statements. The Company adopted this update in the first quarter of fiscal year 2016. There was no material impact on the Company’s financial position, results of operations, or cash flows. In September 2015, the FASB issued an update to ASC 805, Business Combinations: Simplifying the Accounting Measurement-Period Adjustments . This update simplifies the accounting for adjustments made to provisional amounts recognized in a business combination by eliminating the requirement to retrospectively account for those adjustments. Under this update, the adjustments are recognized in the reporting period in which the adjustment amounts are determined. This update should be applied prospectively. The Company adopted this update in the first quarter of fiscal year 2016. There was no material impact on the Company’s financial position, results of operations, or cash flows. In November 2015, the FASB issued an update to ASC 740, Income Taxes: Balance Sheet Classification of Deferred Taxes . This update simplifies the presentation of current and non-current deferred tax liabilities and assets. Under this update, the deferred tax liabilities and assets are classified as non-current on the balance sheet. The update does not impact the current requirement that deferred tax liabilities and assets be offset and presented as a single amount. This update may be applied either prospectively or retrospectively. The Company adopted this update in the first quarter of fiscal year 2016 and has elected to apply this update prospectively. There was no material impact on the Company’s financial position, results of operations, or cash flows. Recent Accounting Pronouncements or Updates That Are Not Yet Effective In May 2014, the FASB issued ASC 606, Revenue from Contracts with Customers , that will supersede virtually all existing revenue guidance. Under this new revenue guidance, an entity is required to recognize revenue upon transfer of promised goods or services to customers, in an amount that reflects the expected consideration received in exchange for those goods or services. As such, an entity will need to use more judgment and make more estimates than under the current guidance. This new revenue guidance should be applied retrospectively either to each prior reporting period presented in the financial statements, or only to the most current reporting period presented in the financial statements with a cumulative effect adjustment recorded in retained earnings. In August 2015, the FASB issued an update to defer the effective date of this new revenue guidance by one year. This new revenue guidance becomes effective and will be adopted by the Company in the first quarter of fiscal year 2019. Early adoption is not permitted for reporting periods before the first quarter of fiscal year 2018. The Company is currently evaluating the impact of this new revenue guidance on its consolidated financial statements. In March 2016, the FASB issued an update to ASC 606, Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net) , which clarifies the implementation guidance for principal versus agent considerations. In April 2016, the FASB issued an update to ASC 606, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing , which clarifies the guidance related to identifying performance obligations and accounting for licenses of intellectual property. In May 2016, the FASB issued an update to ASC 606, Revenue from Contracts with Customers: Narrow-Scope Improvements and Practical Expedients , which clarifies the guidance related to collectibility and non-cash consideration, as well as provides practical expedients for the transition to ASC 606. The Company must adopt these updates with the adoption of ASC 606, Revenue from Contracts with Customers . The Company is currently evaluating the impact of these updates on its consolidated financial statements. In April 2015, the FASB issued an update to ASC 350, Intangibles—Goodwill and Other—Internal-Use Software: Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement . This update provides guidance on the accounting for fees paid in a cloud computing arrangement if the arrangement was determined to include a software license. This update will not change U.S. GAAP for a customer’s accounting for service contracts. This update may be applied either prospectively or retrospectively and will be adopted by the Company in the first quarter of fiscal year 2017. Early adoption is permitted. The Company does not expect the adoption of this update to have a material impact on its consolidated financial statements. In July 2015, the FASB issued an update to ASC 330, Inventory: Simplifying the Measurement of Inventory . Under this update, measurement of inventory is based on the lower of cost or net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less the estimated cost of completion and disposal. This update does not apply to inventory that is measured using last-in, first-out or the retail inventory method. This update should be applied prospectively and will be adopted by the Company in the first quarter of fiscal year 2018. Early adoption is permitted. The Company does not expect the adoption of this update to have a material impact on its consolidated financial statements. In January 2016, the FASB issued an update to ASC 825, Financial Instruments—Overall: Recognition and Measurement of Financial Assets and Financial Liabilities . This update consists of eight provisions that provide guidance on the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. This update should be applied by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption and prospectively for equity investments without readily determinable fair values. This update becomes effective and will be adopted by the Company in the first quarter of fiscal year 2019. Early adoption is permitted for two of the eight provisions. The Company is currently evaluating the impact of this update on its consolidated financial statements and related disclosures. In February 2016, the FASB issued ASC 842, Leases , that will supersede the existing lease guidance, including on-balance sheet recognition of operating leases for lessees. This new lease guidance should be applied using a modified retrospective approach and will be adopted by the Company in the first quarter of fiscal year 2020. Early adoption is permitted. The Company is currently evaluating the impact of this new lease guidance on its consolidated financial statements. In March 2016, the FASB issued an update to ASC 718, Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting . This update simplifies certain aspects of the accounting for share-based payment transactions, including income taxes, forfeiture rates, classification of awards, and classification in the statement of cash flows. This update becomes effective in the first quarter of fiscal year 2018. Early adoption is permitted. The Company is currently evaluating the impact of this update on its consolidated financial statements. In June 2016, the FASB issued ASC 326, Financial Instrument—Credit Losses , that will supersede the existing methodology for estimating expected credit losses on certain financial instruments. The new impairment methodology eliminates the probable initial recognition threshold and, instead, estimates the expected credit losses in consideration of past events, current conditions, and forecasted information. This update becomes effective in the first quarter of fiscal year 2021. Early adoption is permitted in the first quarter of fiscal year 2020. The Company is currently evaluating the impact of this update on its consolidated financial statements. In August 2016, the FASB issued an update to ASC 230, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments . This update consists of eight provisions that provide guidance on the classification of certain cash receipts and cash payments. If practicable, this update should be applied using a retrospective transition method to each period presented. For the provisions that are impracticable to apply retrospectively, those provisions may be applied prospectively as of the earliest date practicable. This update becomes effective and will be adopted by the Company in the first quarter of fiscal year 2019. Early adoption is permitted. The Company is currently evaluating the impact of this update on its consolidated financial statements and related disclosures.

Goodwill And Intangible Assets

Goodwill And Intangible Assets (Policies)	9 Months Ended
	Jul. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets, Goodwill Policy	The Company conducts its goodwill impairment test annually and whenever events occur or facts and circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. Effective on the first day of the fourth fiscal quarter, the Company changed the date of its annual impairment test for goodwill from the first day of the second fiscal quarter to the first day of the fourth fiscal quarter. This change in the annual impairment test date was made to better coincide with the timing of when the Company prepares its annual budget and financial plans as part of its regular long-range planning process. For the annual goodwill impairment test, the Company uses the income approach, the market approach, or a combination thereof to determine each reporting unit’s fair value. The income approach provides an estimate of fair value based on discounted expected future cash flows (“DCF”). The market approach provides an estimate of fair value by applying various observable market-based multiples to the reporting unit’s operating results and then applying an appropriate control premium. For the initial fiscal year 2016 annual goodwill impairment test, the Company used a combination of these approaches to estimate each reporting unit’s fair value. At the time that the initial fiscal year 2016 annual goodwill impairment test was performed, the Company believed that the income approach and the market approach were equally representative of a reporting unit’s fair value. Determining the fair value of a reporting unit requires judgment and involves the use of significant estimates and assumptions. The Company based its fair value estimates on assumptions it believes to be reasonable but are inherently uncertain. Estimates and assumptions with respect to the determination of the fair value of its reporting units using the income approach include, among other inputs: • The Company’s operating forecasts; • The Company’s forecasted revenue growth rates; and • Risk-commensurate discount rates and costs of capital. The Company’s estimates of revenues and costs are based on historical data, various internal estimates, and a variety of external sources, and are developed as part of the Company’s regular long-range planning process. The control premium used in market or combined approaches was determined by considering control premiums offered as part of the acquisitions where acquired companies were comparable with the Company’s reporting units.
Goodwill and Intangible Assets, Intangible Assets, Policy	Intangible assets other than goodwill are amortized on a straight-line basis over the following estimated remaining useful lives, unless the Company has determined these lives to be indefinite.
Goodwill and Intangible Assets, Intangible Assets, Indefinite-Lived, Policy	Acquired IPR&D are intangible assets accounted for as indefinite-lived assets until the completion or abandonment of the associated research and development efforts. If the research and development efforts associated with the IPR&D are successfully completed, then the IPR&D intangible assets will be amortized over the estimated useful lives to be determined as of the date the efforts are completed.

Fair Value Measurements Fair Va

Fair Value Measurements Fair Value Measurements (Policies)	9 Months Ended
	Jul. 30, 2016
Accounting Policies [Abstract]
Fair Value Transfer Policy	The Company applies fair value measurements for both financial and non-financial assets and liabilities. The Company does not have any non-financial assets or liabilities that are required to be measured at fair value on a recurring basis as of July 30, 2016 . The fair value accounting guidance permits companies to elect fair value measurement for many financial instruments and certain other items that are not required to be accounted for at fair value. The Company did not elect fair value measurement for any eligible financial instruments or other assets. Fair Value Hierarchy The Company utilizes a fair value hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. During the nine months ended July 30, 2016 , the Company had no transfers between levels of the fair value hierarchy of its assets and liabilities measured at fair value.

Derivative Instruments and He26

Derivative Instruments and Hedging Activities Derivative Instruments And Hedging Activities (Policies)	9 Months Ended
	Jul. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives, Methods of Accounting, Hedging Derivatives	A majority of the Company’s revenue, expense, and capital purchasing activities are transacted in U.S. dollars. However, the Company is exposed to foreign currency exchange rate risk inherent in conducting business globally in numerous currencies. The Company is primarily exposed to foreign currency fluctuations related to operating expenses denominated in currencies other than the U.S. dollar, of which the most significant to its operations for the three and nine months ended July 30, 2016 , were the euro , the British pound , the Indian rupee , the Chinese yuan , the Singapore dollar , the Japanese yen , and the Swiss franc . The Company has established a foreign currency risk management program to protect against the volatility of future cash flows caused by changes in foreign currency exchange rates. This program reduces, but does not eliminate, the impact of foreign currency exchange rate movements. The Company utilizes a rolling hedge strategy for the majority of its foreign currency derivative instruments to hedge exposures to the variability in the U.S. dollar equivalent of anticipated non-U.S.-dollar-denominated cash flows. All of the Company’s foreign currency forward contracts are single delivery, which are settled at maturity involving one cash payment. The Company’s foreign currency risk management program includes foreign currency derivatives with a cash flow hedge accounting designation that utilizes foreign currency forward and option contracts to hedge exposures to the variability in the U.S. dollar equivalent of anticipated non-U.S.-dollar-denominated cash flows. These instruments generally have a maturity of less than 15 months . For these derivatives, the Company initially reports the after-tax gain or loss from the effective portion of the hedge as a component of accumulated other comprehensive loss in stockholders’ equity and reclassifies it into earnings in the same period in which the hedged transaction affects earnings. The tax effect allocated to cash flow hedge-related components of other comprehensive loss was not material for the three and nine months ended July 30, 2016, and August 1, 2015 . Ineffective cash flow hedges are included in the Company’s net income as part of “ Interest and other income, net .” The amount recorded on ineffective cash flow hedges was not material for the three and nine months ended July 30, 2016, and August 1, 2015 .

Goodwill And Intangible Asset27

Goodwill And Intangible Assets (Tables)	9 Months Ended
	Jul. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule Of Goodwill Activity By Reportable Segment	The following table summarizes goodwill activity by reportable segment during the nine months ended July 30, 2016 (in thousands): Storage Area Networking (“SAN”) Products IP Networking Products Global Services Total Balance at October 31, 2015 Goodwill $ 176,325 $ 1,414,634 $ 155,416 $ 1,746,375 Accumulated impairment losses — (129,214 ) — (129,214 ) 176,325 1,285,420 155,416 1,617,161 Acquisitions (1) — 308,456 398,936 707,392 Tax adjustments (2) (5 ) — — (5 ) Translation adjustments — (233 ) — (233 ) Balance at July 30, 2016 Goodwill 176,320 1,722,857 554,352 2,453,529 Accumulated impairment losses — (129,214 ) — (129,214 ) $ 176,320 $ 1,593,643 $ 554,352 $ 2,324,315 (1) The goodwill acquired relates to the acquisitions completed in March 2016 and May 2016. See Note 3 , “ Acquisitions ,” of the Notes to Condensed Consolidated Financial Statements. (2) The goodwill adjustments were primarily a result of tax benefits from the exercise of stock awards of acquired companies.
Schedule of Intangible Assets	The following tables present details of the Company’s intangible assets, excluding goodwill (in thousands, except for weighted-average remaining useful life): July 30, 2016 Gross Accumulated Net Weighted- Finite-lived intangible assets: Trade names $ 45,090 $ 1,105 $ 43,985 14.71 Core/developed technology (1) (2) 254,290 23,834 230,456 5.67 Patent portfolio license (3) 7,750 1,669 6,081 17.00 Customer relationships 141,110 8,805 132,305 6.52 Non-compete agreements 1,050 904 146 0.46 Patents with broader applications 1,040 92 948 13.63 Total finite-lived intangible assets 450,330 36,409 413,921 6.72 Indefinite-lived intangible assets, excluding goodwill: IPR&D (1) 21,000 — 21,000 Total indefinite-lived intangible assets, excluding goodwill 21,000 — 21,000 Total intangible assets, excluding goodwill $ 471,330 $ 36,409 $ 434,921 October 31, 2015 Gross Accumulated Net Weighted- Finite-lived intangible assets: Trade names $ 1,090 $ 415 $ 675 4.36 Core/developed technology 40,530 9,605 30,925 3.49 Patent portfolio license (3) 7,750 849 6,901 17.74 Customer relationships 23,110 2,484 20,626 7.18 Non-compete agreements 1,050 664 386 1.17 Patents with broader applications 1,040 40 1,000 14.38 Total finite-lived intangible assets 74,570 14,057 60,513 6.55 Indefinite-lived intangible assets, excluding goodwill: IPR&D (1) 15,110 — 15,110 Total indefinite-lived intangible assets, excluding goodwill 15,110 — 15,110 Total intangible assets, excluding goodwill $ 89,680 $ 14,057 $ 75,623 (1) Acquired IPR&D are intangible assets accounted for as indefinite-lived assets until the completion or abandonment of the associated research and development efforts. If the research and development efforts associated with the IPR&D are successfully completed, then the IPR&D intangible assets will be amortized over the estimated useful lives to be determined as of the date the efforts are completed. During the three months ended July 30, 2016 , the Company acquired $23.0 million in IPR&D intangible assets in connection with the acquisition of Ruckus. The research and development efforts associated with these IPR&D intangible assets are expected to be completed in fiscal years 2016 and 2017. During the nine months ended July 30, 2016 , research and development efforts were completed on $17.1 million of the IPR&D intangible assets, and the completed IPR&D intangible assets are being amortized as core/developed technology over the estimated useful lives of five to seven years. (2) During the nine months ended July 30, 2016 , $1.0 million of finite-lived intangible assets became fully amortized and, therefore, were removed from the balance sheet. (3) The patent portfolio license was assigned an estimated useful life that reflects the Company’s consumption of the expected defensive benefits related to this license to certain patents. The method of amortization for the patent portfolio license reflects the Company’s estimate of the pattern in which these expected defensive benefits will be used by the Company and is primarily based on the mix of expiration patterns of the individual patents included in the license.
Schedule Of Amortization Of Intangible Assets Included On Consolidated Statements Of Operations	The amortization of finite-lived intangible assets is included in the following line items of the Company’s Condensed Consolidated Statements of Income as follows (in thousands): Three Months Ended Nine Months Ended July 30, 2016 August 1, 2015 July 30, 2016 August 1, 2015 Cost of revenues $ 8,922 $ 2,549 $ 15,269 $ 5,043 General and administrative (1) 271 889 821 1,654 Amortization of intangible assets 5,498 280 7,302 570 Total $ 14,691 $ 3,718 $ 23,392 $ 7,267 (1) The amortization is related to the $7.8 million of perpetual, non-exclusive license to certain patents purchased during the fiscal year ended October 31, 2015.
Schedule Of Estimated Future Amortization Of Intangible Assets	The following table presents the estimated future amortization of finite-lived intangible assets as of July 30, 2016 (in thousands): Fiscal Year Estimated Future Amortization 2016 (remaining three months) $ 18,998 2017 72,063 2018 63,562 2019 60,039 2020 59,082 Thereafter 140,177 Total $ 413,921

Balance Sheet Details (Tables)

Balance Sheet Details (Tables)	9 Months Ended
	Jul. 30, 2016
Balance Sheet Details [Abstract]
Schedule of Inventory	The following tables provide details of selected balance sheet items (in thousands): July 30, October 31, Inventories: Raw materials $ 17,613 $ 18,788 Finished goods 63,569 21,736 Inventories $ 81,182 $ 40,524
Schedule of Property, Plant and Equipment	July 30, October 31, Property and equipment, net: Gross property and equipment Computer equipment $ 18,886 $ 14,820 Software 84,337 67,625 Engineering and other equipment (1) 443,808 407,342 Furniture and fixtures (1) 33,468 31,028 Leasehold improvements 37,315 33,986 Land and building 386,163 385,415 Total gross property and equipment 1,003,977 940,216 Accumulated depreciation and amortization (1) (2) (544,165 ) (500,992 ) Property and equipment, net $ 459,812 $ 439,224 (1) Engineering and other equipment, furniture and fixtures, and accumulated depreciation and amortization include the following amounts under capital leases as of July 30, 2016 , and October 31, 2015 (in thousands): July 30, October 31, Cost of capitalized leases $ 270 $ 1,312 Accumulated depreciation (255 ) (857 ) Property and equipment, net, under capital leases $ 15 $ 455 (2) The following table presents the depreciation of property and equipment included in the Company’s Condensed Consolidated Statements of Income (in thousands): Three Months Ended Nine Months Ended July 30, August 1, July 30, August 1, Depreciation expense $ 20,393 $ 18,605 $ 57,531 $ 55,302
Schedule of Capital Leased Assets	Engineering and other equipment, furniture and fixtures, and accumulated depreciation and amortization include the following amounts under capital leases as of July 30, 2016 , and October 31, 2015 (in thousands): July 30, October 31, Cost of capitalized leases $ 270 $ 1,312 Accumulated depreciation (255 ) (857 ) Property and equipment, net, under capital leases $ 15 $ 455

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Jul. 30, 2016
Fair Value Disclosures [Abstract]
Schedule Of Assets And Liabilities Measured At Fair Value	Assets and liabilities measured and recorded at fair value on a recurring basis as of July 30, 2016 , were as follows (in thousands): Fair Value Measurements Using Balance as of Quoted Prices in Significant Other Significant Assets: Money market funds (1) $ 885,152 $ 885,152 $ — $ — Derivative assets 477 — 477 — Total assets measured at fair value $ 885,629 $ 885,152 $ 477 $ — Liabilities: Derivative liabilities $ 759 $ — $ 759 $ — (1) Money market funds are reported within “Cash and cash equivalents” on the Company’s Condensed Consolidated Balance Sheets. Assets and liabilities measured and recorded at fair value on a recurring basis as of October 31, 2015 , were as follows (in thousands): Fair Value Measurements Using Balance as of Quoted Prices in Significant Other Significant Assets: Money market funds (1) $ 1,184,410 $ 1,184,410 $ — $ — Derivative assets 709 — 709 — Total assets measured at fair value $ 1,185,119 $ 1,184,410 $ 709 $ — Liabilities: Derivative liabilities $ 1,125 $ — $ 1,125 $ — (1) Money market funds are reported within “Cash and cash equivalents” on the Company’s Condensed Consolidated Balance Sheets.

Restructuring and Other Costs (

Restructuring and Other Costs (Tables)	9 Months Ended
	Jul. 30, 2016
Restructuring and Related Activities [Abstract]
Schedule of Restructuring and Other Charges	The following table provides details of “ Restructuring and other related benefits ” included in the Company’s Condensed Consolidated Statements of Income (in thousands): Three Months Ended Nine Months Ended July 30, August 1, July 30, August 1, Lease loss reserve and related benefits $ — $ — $ (566 ) $ (637 )
Schedule of Restructuring Reserve	The following table provides a reconciliation of the Company’s beginning and ending restructuring liability balances (in thousands): Fiscal 2013 Fourth Quarter Restructuring Plan Other Restructuring Plans Severance and Benefits Lease Loss Reserve and Related Costs Lease Loss Reserve and Related Costs Total Restructuring liabilities at October 31, 2015 $ 110 $ 1,811 $ 408 $ 2,329 Restructuring and other related benefits — (566 ) — (566 ) Cash payments — (380 ) (260 ) (640 ) Translation adjustment — (17 ) — (17 ) Restructuring liabilities at July 30, 2016 $ 110 $ 848 $ 148 $ 1,106 Current restructuring liabilities at July 30, 2016 $ 110 $ 350 $ 148 $ 608 Non-current restructuring liabilities at July 30, 2016 $ — $ 498 $ — $ 498

Borrowings (Tables)

Borrowings (Tables)	9 Months Ended
	Jul. 30, 2016
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	The following table provides details of the Company’s long-term debt (in thousands, except years and percentages): July 30, 2016 October 31, 2015 Maturity Stated Annual Interest Rate Amount Effective Interest Rate Amount Effective Interest Rate Senior Credit Facility: Term Loan Facility 2021 variable $ 800,000 2.50 % $ — — % Convertible Senior Unsecured Notes: 2020 Convertible Notes 2020 1.375% 575,000 4.98 % 575,000 4.98 % Senior Unsecured Notes: 2023 Notes 2023 4.625% 300,000 4.83 % 300,000 4.83 % Capital lease obligations 2016 4.625% 16 4.63 % 298 4.63 % Total gross long-term debt 1,675,016 875,298 Unamortized discount (78,755 ) (79,196 ) Unamortized debt issuance costs (2,873 ) (2,025 ) Current portion of long-term debt (76,627 ) (298 ) Long-term debt, net of current portion $ 1,516,761 $ 793,779
Schedule of Carrying Values of Liability and Equity Components	The carrying values of the liability and equity components of the 2020 Convertible Notes are as follows (in thousands): July 30, October 31, Principal $ 575,000 $ 575,000 Unamortized discount of the liability component (63,706 ) (76,311 ) Net carrying amount of liability component $ 511,294 $ 498,689 Carrying amount of equity component $ 59,293 $ 70,765
Schedule Of Debt Maturities	As of July 30, 2016 , the Company’s aggregate debt maturities based on outstanding principal were as follows (in thousands): Fiscal Year Principal Balances 2016 (remaining three months) $ 20,016 2017 80,000 2018 80,000 2019 80,000 2020 655,000 Thereafter 760,000 Total $ 1,675,016

Commitments And Contingencies (

Commitments And Contingencies (Tables)	9 Months Ended
	Jul. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Schedule Of Accrued Liability For Estimated Future Warranty Costs	The following table summarizes the activity related to the Company’s accrued liability for estimated future warranty costs during the nine months ended July 30, 2016 , and August 1, 2015 (in thousands): Accrued Warranty Nine Months Ended July 30, August 1, Beginning balance $ 7,599 $ 7,486 Warranty liability assumed from acquisitions 760 — Liabilities accrued for warranties issued during the period 2,768 3,059 Warranty claims paid and used during the period (2,736 ) (3,221 ) Changes in liability for pre-existing warranties during the period (60 ) (125 ) Ending balance $ 8,331 $ 7,199

Derivative Instruments And He33

Derivative Instruments And Hedging Activities (Tables)	9 Months Ended
	Jul. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule Of Net Gains (Losses) Related To The Effective Portion Of Foreign Currency Derivatives	Net losses relating to the effective portion of foreign currency derivatives, which are offset by net gains on the underlying exposures, are recorded in the Company’s Condensed Consolidated Statements of Income as follows (in thousands): Three Months Ended Nine Months Ended July 30, 2016 August 1, 2015 July 30, 2016 August 1, 2015 Cost of revenues $ (35 ) $ (141 ) $ (195 ) $ (605 ) Research and development (342 ) (206 ) (968 ) (273 ) Sales and marketing (120 ) (542 ) (764 ) (1,866 ) General and administrative (10 ) (52 ) (54 ) (135 ) Total $ (507 ) $ (941 ) $ (1,981 ) $ (2,879 )
Schedule Of Total Gross Notional Amounts, Presented By Currency	Total gross notional amounts, presented by currency, are as follows (in thousands): Derivatives Designated In U.S. dollars July 30, 2016 October 31, 2015 Euro $ 10,410 $ 40,961 British pound 9,940 46,330 Indian rupee 8,836 35,647 Chinese yuan 3,629 15,129 Singapore dollar 3,484 13,745 Japanese yen 2,606 8,809 Swiss franc 2,365 9,265 Total $ 41,270 $ 169,886

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Jul. 30, 2016
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Stock-Based Compensation Expense Included In Line Items Of Consolidated Statements Of Operations	Stock-based compensation expense, net of estimated forfeitures, is included in the following line items of the Company’s Condensed Consolidated Statements of Income as follows (in thousands): Three Months Ended Nine Months Ended July 30, 2016 August 1, 2015 July 30, 2016 August 1, 2015 Cost of revenues $ 5,965 $ 3,955 $ 12,400 $ 9,757 Research and development 9,206 5,226 19,805 13,239 Sales and marketing 17,756 10,601 39,886 27,651 General and administrative 11,716 4,655 21,384 13,947 Total stock-based compensation expense $ 44,643 $ 24,437 $ 93,475 $ 64,594
Stock-Based Compensation Expense By Grant Type	The following table presents stock-based compensation expense, net of estimated forfeitures, by grant type (in thousands): Three Months Ended Nine Months Ended July 30, 2016 August 1, 2015 July 30, 2016 August 1, 2015 Stock options $ 3,291 $ 973 $ 4,727 $ 2,865 RSUs, including restricted stock units with market conditions 35,604 18,941 75,986 48,192 Employee stock purchase plan (“ESPP”) 5,748 4,523 12,762 13,537 Total stock-based compensation expense $ 44,643 $ 24,437 $ 93,475 $ 64,594
Stock-Based Compensation, Unrecognized Compensation Expense And Weighted-Average Period	The following table presents the unrecognized compensation expense, net of estimated forfeitures, by grant type and the related weighted-average periods over which this expense is expected to be recognized as of July 30, 2016 (in thousands, except for the weighted-average period): Unrecognized Compensation Expense Weighted- Average Period (In years) Stock options $ 2,161 1.10 RSUs, including restricted stock units with market conditions $ 166,357 2.69 ESPP $ 24,497 1.21
Schedule of Share-based Compensation, Activity	The following table presents details on grants made by the Company for the following periods: Nine Months Ended July 30, 2016 August 1, 2015 Granted Weighted-Average Granted Weighted-Average Stock options 1,390 $ 1.36 1,117 $ 3.09 RSUs, including stock units with market conditions 17,879 $ 7.90 10,251 $ 11.53 The total intrinsic value of stock options exercised for the nine months ended July 30, 2016 , and August 1, 2015 , was $1.2 million and $2.9 million , respectively.

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Jul. 30, 2016
Equity [Abstract]
Schedule of Dividends Payable [Table Text Block]	During the nine months ended July 30, 2016 , the Company’s Board of Directors declared the following dividends (in thousands, except per share amounts): Declaration Date Dividend per Share Record Date Total Amount Paid Payment Date November 22, 2015 $ 0.045 December 10, 2015 $ 18,429 January 4, 2016 February 16, 2016 $ 0.045 March 10, 2016 $ 18,016 April 4, 2016 May 18, 2016 $ 0.055 June 10, 2016 $ 25,261 July 5, 2016
Schedule of Comprehensive Income (Loss) Tax Effects	The components of other comprehensive loss and related tax effects for the three months ended July 30, 2016 , and August 1, 2015 , are as follows (in thousands): Three Months Ended July 30, 2016 August 1, 2015 Before-Tax Amount Tax Expense Net-of-Tax Amount Before-Tax Amount Tax Expense Net-of-Tax Amount Unrealized gains (losses) on cash flow hedges: Change in unrealized gains and losses, foreign exchange contracts $ (715 ) $ 15 $ (700 ) $ (361 ) $ (53 ) $ (414 ) Net gains and losses reclassified into earnings, foreign exchange contracts (1) 507 (25 ) 482 941 (110 ) 831 Net unrealized gains (losses) on cash flow hedges (208 ) (10 ) (218 ) 580 (163 ) 417 Foreign currency translation adjustments (1,628 ) — (1,628 ) (492 ) — (492 ) Total other comprehensive income (loss) $ (1,836 ) $ (10 ) $ (1,846 ) $ 88 $ (163 ) $ (75 ) The components of other comprehensive loss and related tax effects for the nine months ended July 30, 2016 , and August 1, 2015 , are as follows (in thousands): Nine Months Ended July 30, 2016 August 1, 2015 Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Unrealized gains (losses) on cash flow hedges: Change in unrealized gains and losses, foreign exchange contracts $ (1,056 ) $ 21 $ (1,035 ) $ (2,558 ) $ 226 $ (2,332 ) Net gains and losses reclassified into earnings, foreign exchange contracts (1) 1,981 (150 ) 1,831 2,879 (335 ) 2,544 Net unrealized gains (losses) on cash flow hedges 925 (129 ) 796 321 (109 ) 212 Foreign currency translation adjustments (1,760 ) — (1,760 ) (5,781 ) — (5,781 ) Total other comprehensive loss $ (835 ) $ (129 ) $ (964 ) $ (5,460 ) $ (109 ) $ (5,569 ) (1) For classification of amounts reclassified from accumulated other comprehensive loss into earnings as reported on the Company’s Condensed Consolidated Statements of Income , see Note 10 , “ Derivative Instruments and Hedging Activities ,” of the Notes to Condensed Consolidated Financial Statements.
Schedule of Accumulated Other Comprehensive Income (Loss)	The changes in accumulated other comprehensive loss by component, net of tax, for the nine months ended July 30, 2016 , and August 1, 2015 , are as follows (in thousands): Nine Months Ended July 30, 2016 August 1, 2015 Losses on Cash Flow Hedges Foreign Currency Translation Adjustments Total Accumulated Other Comprehensive Loss Losses on Cash Flow Hedges Foreign Currency Translation Adjustments Total Accumulated Other Comprehensive Loss Beginning balance $ (1,539 ) $ (23,463 ) $ (25,002 ) $ (1,907 ) $ (16,907 ) $ (18,814 ) Change in unrealized gains and losses (1,035 ) (1,760 ) (2,795 ) (2,332 ) (5,781 ) (8,113 ) Net gains and losses reclassified into earnings 1,831 — 1,831 2,544 — 2,544 Net current-period other comprehensive income (loss) 796 (1,760 ) (964 ) 212 (5,781 ) (5,569 ) Ending balance $ (743 ) $ (25,223 ) $ (25,966 ) $ (1,695 ) $ (22,688 ) $ (24,383 )

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Jul. 30, 2016
Segment Reporting [Abstract]
Schedule Of Financial Information By Reportable Segment	Summarized financial information by reportable segment for the three and nine months ended July 30, 2016, and August 1, 2015 , based on the internal management reporting system, is as follows (in thousands): SAN Products IP Networking Products Global Services Total Three months ended July 30, 2016 Net revenues $ 282,114 $ 208,881 $ 99,726 $ 590,721 Cost of revenues 70,630 117,862 45,330 233,822 Gross margin $ 211,484 $ 91,019 $ 54,396 $ 356,899 Three months ended August 1, 2015 Net revenues $ 309,451 $ 153,749 $ 88,619 $ 551,819 Cost of revenues 73,657 70,586 35,672 179,915 Gross margin $ 235,794 $ 83,163 $ 52,947 $ 371,904 Nine months ended July 30, 2016 Net revenues $ 925,799 $ 474,556 $ 287,956 $ 1,688,311 Cost of revenues 223,806 240,991 127,489 592,286 Gross margin $ 701,993 $ 233,565 $ 160,467 $ 1,096,025 Nine months ended August 1, 2015 Net revenues $ 976,362 $ 431,319 $ 266,952 $ 1,674,633 Cost of revenues 233,150 198,631 109,056 540,837 Gross margin $ 743,212 $ 232,688 $ 157,896 $ 1,133,796

Net Income Per Share (Tables)

Net Income Per Share (Tables)	9 Months Ended
	Jul. 30, 2016
Earnings Per Share [Abstract]
Schedule Of Calculation Of Basic And Diluted Net Income (Loss) Per Share	The following table presents the calculation of basic and diluted net income per share (in thousands, except per share amounts): Three Months Ended Nine Months Ended July 30, August 1, July 30, August 1, Basic net income per share Net income $ 10,495 $ 91,667 $ 147,226 $ 255,974 Weighted-average shares used in computing basic net income per share 426,671 417,299 411,709 422,184 Basic net income per share $ 0.02 $ 0.22 $ 0.36 $ 0.61 Diluted net income per share Net income $ 10,495 $ 91,667 $ 147,226 $ 255,974 Weighted-average shares used in computing basic net income per share 426,671 417,299 411,709 422,184 Dilutive potential common shares in the form of stock options 1,227 1,772 1,329 1,777 Dilutive potential common shares in the form of other share-based awards 6,518 8,447 6,378 9,342 Weighted-average shares used in computing diluted net income per share 434,416 427,518 419,416 433,303 Diluted net income per share $ 0.02 $ 0.21 $ 0.35 $ 0.59 Antidilutive potential common shares in the form of: (1) Warrants issued in conjunction with the 2020 Convertible Notes (2) 36,316 36,125 36,251 26,453 Stock options 2,838 1,109 2,029 934 Other share-based awards 2,120 100 1,140 33 (1) These amounts are excluded from the computation of diluted net income per share. (2) In connection with the issuance of the 2020 Convertible Notes, the Company entered into convertible note hedge and warrant transactions as described in Note 8 , “ Borrowings .” The 2020 Convertible Notes have no impact on diluted earnings per share until the average quarterly price of the Company’s common stock exceeds the adjusted conversion price of $15.83 per share. If the common stock price exceeds this adjusted conversion price, then, prior to conversion, the Company will calculate the effect of the additional shares that may be issued using the treasury stock method. If the average price of the Company’s common stock exceeds $20.52 per share for a quarterly period, the Company’s weighted-average shares used in computing diluted net income per share will be impacted by the effect of the additional potential shares that may be issued related to the warrants using the treasury stock method. The convertible note hedge is not considered for purposes of the diluted earnings per share calculation, as its effect would be antidilutive.

Summary Of Significant Accoun38

Summary Of Significant Accounting Policies (Concentration of Risk Narrative)(Details)	9 Months Ended		12 Months Ended
	Jul. 30, 2016customer	Aug. 01, 2015customer	Oct. 31, 2015customer
Concentration Risk
Number of Financial Institutions	6
Customer Concentration Risk | Accounts Receivable
Concentration Risk
Concentration Risk, Percentage	28.00%
Number Of Customers Included In Concentration Disclosures	2		1
Customer Concentration Risk | Accounts Receivable | Major Customer One
Concentration Risk
Concentration Risk, Percentage	18.00%		17.00%
Customer Concentration Risk | Accounts Receivable | Major Customer Two
Concentration Risk
Concentration Risk, Percentage	10.00%
Customer Concentration Risk | Sales Revenue, Segment
Concentration Risk
Concentration Risk, Percentage	24.00%	43.00%
Number Of Customers Included In Concentration Disclosures	2	3
Customer Concentration Risk | Sales Revenue, Segment | Major Customer One
Concentration Risk
Concentration Risk, Percentage	12.00%	16.00%
Customer Concentration Risk | Sales Revenue, Segment | Major Customer Two
Concentration Risk
Concentration Risk, Percentage	12.00%	15.00%
Customer Concentration Risk | Sales Revenue, Segment | Major Customer Three
Concentration Risk
Concentration Risk, Percentage		12.00%

Acquisitions (Narrative) (Detai

Acquisitions (Narrative) (Details) $ / shares in Units, shares in Thousands	3 Months Ended			9 Months Ended
	Jul. 30, 2016USD ($)employessshares	Aug. 01, 2015USD ($)	May 02, 2015USD ($)	Jul. 30, 2016USD ($)shares	Aug. 01, 2015USD ($)	May 27, 2016USD ($)$ / sharesshares	Oct. 31, 2015USD ($)shares
Business Acquisition [Line Items]
Common stock, shares outstanding | shares	400,679			400,679			413,923
Acquisition and integration costs	$ 14,868,000	$ 789,000		$ 20,625,000	$ 3,133,000
Goodwill	2,324,315,000			2,324,315,000			$ 1,617,161,000
IP Networking Products
Business Acquisition [Line Items]
Goodwill	1,593,643,000			1,593,643,000			1,285,420,000
Global Services
Business Acquisition [Line Items]
Goodwill	554,352,000			554,352,000			$ 155,416,000
Ruckus
Business Acquisition [Line Items]
Cash Per Share in Acquisition | $ / shares						$ 6.45
Common Stock Per Share in Acquisition						0.75
Common stock, shares outstanding | shares						92,200
Share Price | $ / shares						$ 8.60
Total preliminary purchase consideration (b)	1,275,448,000
Payments to Acquire Businesses, Gross	574,000,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	574,000,000
Business Combination, Consideration Transferred, Liabilities Incurred	41,700,000
Business Combination, Integration Related Costs	4,636,000			5,407,000
Goodwill						$ 702,776,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount						0
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	77,802,000			77,802,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	(37,611,000)			(37,611,000)
Pro forma net income (loss)	$ (21,936,000)	85,843,000		$ 100,982,000	168,212,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Reasons				Additional information that existed as of the Acquisition Date may become known to the Company during the remainder of the measurement period.
Business Combination, Provisional Information, Initial Accounting Incomplete, Items				The total preliminary purchase consideration and allocation reflects the Company’s preliminary estimates and is subject to revision as additional information in relation to the preliminary purchase consideration and the fair value of the underlying assets acquired and liabilities assumed becomes available.
Ruckus | With Immediate Acceleration [Member]
Business Acquisition [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Number of Employees Affected | employess	8
Ruckus | Without Immediate Acceleration [Member]
Business Acquisition [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Number of Employees Affected | employess	4
Ruckus | Immediate Acceleration of Vested Options [Member]
Business Acquisition [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost	$ 4,679,000			$ 4,679,000
Ruckus | Other Post-Combination Expense [Member]
Business Acquisition [Line Items]
Separately Recognized Transaction, Unamortized Stock Compensation Expense	28,600,000			28,600,000
Ruckus | Acquisition Costs [Member]
Business Acquisition [Line Items]
Acquisition and integration costs	10,232,000			$ 15,219,000
Ruckus | IP Networking Products
Business Acquisition [Line Items]
Goodwill						303,800,000
Ruckus | Global Services
Business Acquisition [Line Items]
Goodwill						$ 398,900,000
Ruckus | Vested Options [Member]
Business Acquisition [Line Items]
Other Consideration Transferred	78,300,000
Ruckus | Replacement Awards [Member]
Business Acquisition [Line Items]
Other Consideration Transferred	7,400,000
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Total preliminary purchase consideration (b)			$ 96,100,000
Cash Acquired from Acquisition			100,000
Payments to Acquire Businesses, Gross			95,500,000
Other Consideration Transferred			$ 500,000
Business Combination, Integration Related Costs		800,000			1,700,000
Series of Individually Immaterial Business Acquisitions [Member] | Acquisition Costs [Member]
Business Acquisition [Line Items]
Acquisition and integration costs					1,469,000
Series of Individually Immaterial Business Acquisitions [Member] | RSU Grant
Business Acquisition [Line Items]
Business Combination, Separately Recognized Transactions, Accounting Method				The RSUs are accounted for as stock-based compensation expense
Separately Recognized Transaction, Expense Recognized	500,000	900,000		$ 1,400,000	1,100,000
Series of Individually Immaterial Business Acquisitions [Member] | Cash Retention Award
Business Acquisition [Line Items]
Business Combination, Separately Recognized Transactions, Accounting Method				The cash awards are accounted for as employee compensation expense
Separately Recognized Transaction, Expense Recognized	$ 900,000	$ 1,600,000		$ 3,400,000	2,000,000
Shares Dissented [Member] | Ruckus
Business Acquisition [Line Items]
Common stock, shares outstanding | shares						3,200
Fair Value Adjustment to Inventory [Member]
Business Acquisition [Line Items]
Pro forma net income (loss)					39,812,000
Acquisition-related Costs [Member]
Business Acquisition [Line Items]
Pro forma net income (loss)					$ 20,625,000

Acquisitions Acquisitions (Sche

Acquisitions Acquisitions (Schedule of Purchase Price Allocation) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 30, 2016	May 27, 2016	Oct. 31, 2015
Liabilities assumed:
Goodwill	$ 2,324,315		$ 1,617,161
Ruckus
Assets acquired:
Cash and cash equivalents		$ 95,515
Short-term investments		149,615
Accounts receivable, net of allowances for doubtful accounts of $2,100		41,339
Inventories		66,000
Prepaid expenses and other current assets		5,953
Property and equipment, net		21,777
Identifiable intangible assets		380,000
Other assets		1,697
Total assets acquired		761,896
Liabilities assumed:
Accounts payable		16,375
Accrued employee compensation		17,514
Deferred revenue		13,923
Other accrued liabilities		33,810
Non-current deferred revenue		9,364
Non-current deferred tax liabilities		57,677
Other non-current liabilities		40,561
Total liabilities assumed		189,224
Net assets acquired		572,672
Total preliminary purchase consideration (b)	$ 1,275,448
Goodwill		$ 702,776

Acquisitions Acquisitions (Sc41

Acquisitions Acquisitions (Schedule of Intangible Assets Acquired as Part of Business Combination) (Details) - USD ($) $ in Thousands		3 Months Ended
		Jul. 30, 2016	May 27, 2016	Oct. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)		$ 21,000		$ 15,110
In Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	[1]	$ 21,000		$ 15,110
Ruckus
Acquired Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets			$ 380,000
Ruckus | In Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets			23,000
Ruckus | Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			44,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		15 years
Ruckus | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			118,000
Ruckus | Customer relationships | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		1 year
Ruckus | Customer relationships | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years
Ruckus | Core/developed technology (1) (2)
Acquired Finite-Lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			$ 195,000
Ruckus | Core/developed technology (1) (2) | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		6 years
Ruckus | Core/developed technology (1) (2) | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years
[1]	Acquired IPR&D are intangible assets accounted for as indefinite-lived assets until the completion or abandonment of the associated research and development efforts. If the research and development efforts associated with the IPR&D are successfully completed, then the IPR&D intangible assets will be amortized over the estimated useful lives to be determined as of the date the efforts are completed. During the three months ended July 30, 2016, the Company acquired $23.0 million in IPR&D intangible assets in connection with the acquisition of Ruckus. The research and development efforts associated with these IPR&D intangible assets are expected to be completed in fiscal years 2016 and 2017. During the nine months ended July 30, 2016, research and development efforts were completed on $17.1 million of the IPR&D intangible assets, and the completed IPR&D intangible assets are being amortized as core/developed technology over the estimated useful lives of five to seven years.

Acquisitions Acquisitions (Sc42

Acquisitions Acquisitions (Schedule of Pro Forma Information) (Details) - Ruckus - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Pro forma revenues	$ 600,530	$ 655,663	$ 1,900,664	$ 1,953,490
Pro forma net income (loss)	$ (21,936)	$ 85,843	$ 100,982	$ 168,212
Pro forma net income (loss) per share—basic	$ (0.05)	$ 0.21	$ 0.25	$ 0.40
Pro forma net income (loss) per share—diluted	$ (0.05)	$ 0.20	$ 0.24	$ 0.38

Goodwill And Intangible Asset43

Goodwill And Intangible Assets (Schedule Of Goodwill Activity By Reportable Segment) (Details) $ in Thousands	9 Months Ended
	Jul. 30, 2016USD ($)
Goodwill
Goodwill, Gross, Beginning Balance	$ 1,746,375
Accumulated impairment losses, Beginning Balance	(129,214)
Goodwill, Net, Beginning Balance	1,617,161
Acquisitions (1)	707,392	[1]
Goodwill, Tax and other adjustments	(5)	[2]
Goodwill, Translation Adjustments	(233)
Goodwill, Gross, Ending Balance	2,453,529
Accumulated impairment losses, Ending Balance	(129,214)
Goodwill, Net, Ending Balance	2,324,315
Storage Area Networking (“SAN”) Products
Goodwill
Goodwill, Gross, Beginning Balance	176,325
Accumulated impairment losses, Beginning Balance	0
Goodwill, Net, Beginning Balance	176,325
Acquisitions (1)	0	[1]
Goodwill, Tax and other adjustments	(5)	[2]
Goodwill, Translation Adjustments	0
Goodwill, Gross, Ending Balance	176,320
Accumulated impairment losses, Ending Balance	0
Goodwill, Net, Ending Balance	176,320
IP Networking Products
Goodwill
Goodwill, Gross, Beginning Balance	1,414,634
Accumulated impairment losses, Beginning Balance	(129,214)
Goodwill, Net, Beginning Balance	1,285,420
Acquisitions (1)	308,456	[1]
Goodwill, Tax and other adjustments	0	[2]
Goodwill, Translation Adjustments	(233)
Goodwill, Gross, Ending Balance	1,722,857
Accumulated impairment losses, Ending Balance	(129,214)
Goodwill, Net, Ending Balance	1,593,643
Global Services
Goodwill
Goodwill, Gross, Beginning Balance	155,416
Accumulated impairment losses, Beginning Balance	0
Goodwill, Net, Beginning Balance	155,416
Acquisitions (1)	398,936	[1]
Goodwill, Tax and other adjustments	0	[2]
Goodwill, Translation Adjustments	0
Goodwill, Gross, Ending Balance	554,352
Accumulated impairment losses, Ending Balance	0
Goodwill, Net, Ending Balance	$ 554,352
[1]	The goodwill acquired relates to the acquisitions completed in March 2016 and May 2016. See Note 3, “Acquisitions,” of the Notes to Condensed Consolidated Financial Statements.
[2]	The goodwill adjustments were primarily a result of tax benefits from the exercise of stock awards of acquired companies.

Goodwill And Intangible Asset44

Goodwill And Intangible Assets (Schedule Of Intangible Assets) (Details) - USD ($) $ in Thousands		9 Months Ended		12 Months Ended
		Jul. 30, 2016		Oct. 31, 2015	May 27, 2016
Intangible Assets
Gross Carrying Value		$ 450,330		$ 74,570
Accumulated Amortization		36,409		14,057
Net Carrying Value		$ 413,921		$ 60,513
Weighted- Average Remaining Useful Life (In years)		6 years 8 months 19 days		6 years 6 months 18 days
Indefinite-Lived Intangible Assets (Excluding Goodwill)		$ 21,000		$ 15,110
Intangible Assets, Gross (Excluding Goodwill)		471,330		89,680
Intangible assets, net		434,921		75,623
Indefinite-lived Intangible Assets, Period Increase (Decrease)		(17,100)
CostofFullyAmortizedIntangibleAssets		$ 1,000
Minimum [Member]
Intangible Assets
UsefulLifeofCompletedIPRD		5 years
Maximum [Member]
Intangible Assets
UsefulLifeofCompletedIPRD		7 years
In Process Research and Development [Member]
Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	[1]	$ 21,000		15,110
Trade names
Intangible Assets
Gross Carrying Value		45,090		1,090
Accumulated Amortization		1,105		415
Net Carrying Value		$ 43,985		$ 675
Weighted- Average Remaining Useful Life (In years)		14 years 8 months 16 days		4 years 4 months 10 days
Core/developed technology (1) (2)
Intangible Assets
Gross Carrying Value	[2]	$ 254,290	[1]	$ 40,530
Accumulated Amortization	[2]	23,834	[1]	9,605
Net Carrying Value	[2]	$ 230,456	[1]	$ 30,925
Weighted- Average Remaining Useful Life (In years)	[2]	5 years 8 months 1 day	[1]	3 years 5 months 26 days
Patent portfolio license (3)
Intangible Assets
Gross Carrying Value	[3]	$ 7,750		$ 7,750
Accumulated Amortization	[3]	1,669		849
Net Carrying Value	[3]	$ 6,081		$ 6,901
Weighted- Average Remaining Useful Life (In years)	[3]	17 years		17 years 8 months 26 days
Customer relationships
Intangible Assets
Gross Carrying Value		$ 141,110		$ 23,110
Accumulated Amortization		8,805		2,484
Net Carrying Value		$ 132,305		$ 20,626
Weighted- Average Remaining Useful Life (In years)		6 years 6 months 7 days		7 years 2 months 5 days
Non-compete agreements
Intangible Assets
Gross Carrying Value		$ 1,050		$ 1,050
Accumulated Amortization		904		664
Net Carrying Value		$ 146		$ 386
Weighted- Average Remaining Useful Life (In years)		5 months 16 days		1 year 2 months 1 day
Patents with broader applications
Intangible Assets
Gross Carrying Value		$ 1,040		$ 1,040
Accumulated Amortization		92		40
Net Carrying Value		$ 948		$ 1,000
Weighted- Average Remaining Useful Life (In years)		13 years 7 months 17 days		14 years 4 months 17 days
Ruckus | In Process Research and Development [Member]
Intangible Assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets					$ 23,000
[1]	Acquired IPR&D are intangible assets accounted for as indefinite-lived assets until the completion or abandonment of the associated research and development efforts. If the research and development efforts associated with the IPR&D are successfully completed, then the IPR&D intangible assets will be amortized over the estimated useful lives to be determined as of the date the efforts are completed. During the three months ended July 30, 2016, the Company acquired $23.0 million in IPR&D intangible assets in connection with the acquisition of Ruckus. The research and development efforts associated with these IPR&D intangible assets are expected to be completed in fiscal years 2016 and 2017. During the nine months ended July 30, 2016, research and development efforts were completed on $17.1 million of the IPR&D intangible assets, and the completed IPR&D intangible assets are being amortized as core/developed technology over the estimated useful lives of five to seven years.
[2]	During the nine months ended July 30, 2016, $1.0 million of finite-lived intangible assets became fully amortized and, therefore, were removed from the balance sheet.
[3]	The patent portfolio license was assigned an estimated useful life that reflects the Company’s consumption of the expected defensive benefits related to this license to certain patents. The method of amortization for the patent portfolio license reflects the Company’s estimate of the pattern in which these expected defensive benefits will be used by the Company and is primarily based on the mix of expiration patterns of the individual patents included in the license.

Goodwill And Intangible Asset45

Goodwill And Intangible Assets (Schedule Of Amortization Of Intangible Assets Included On Consolidated Statements Of Operations) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Amortization of Finite-Lived Intangible Assets [Line Items]
Amortization		$ 14,691	$ 3,718	$ 23,392	$ 7,267
Payments to Acquire Intangible Assets				0	7,750
Cost of revenues
Amortization of Finite-Lived Intangible Assets [Line Items]
Amortization		8,922	2,549	15,269	5,043
Other Operating Income (Expense)
Amortization of Finite-Lived Intangible Assets [Line Items]
Amortization		5,498	280	7,302	570
General and administrative
Amortization of Finite-Lived Intangible Assets [Line Items]
Amortization	[1]	$ 271	$ 889	$ 821	$ 1,654
[1]	The amortization is related to the $7.8 million of perpetual, non-exclusive license to certain patents purchased during the fiscal year ended October 31, 2015.

Goodwill And Intangible Asset46

Goodwill And Intangible Assets (Schedule Of Estimated Future Amortization Of Intangible Assets) (Details) - USD ($) $ in Thousands	Jul. 30, 2016	Oct. 31, 2015
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2016 (remaining three months)	$ 18,998
2,017	72,063
2,018	63,562
2,019	60,039
2,020	59,082
Thereafter	140,177
Total	$ 413,921	$ 60,513

Balance Sheet Details (Schedule

Balance Sheet Details (Schedule of Inventory) (Details) - USD ($) $ in Thousands	Jul. 30, 2016	Oct. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 17,613	$ 18,788
Finished goods	63,569	21,736
Inventory, Net	$ 81,182	$ 40,524

Balance Sheet Details (Schedu48

Balance Sheet Details (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Thousands		Jul. 30, 2016	Oct. 31, 2015
Property, Plant and Equipment
Property and equipment, gross		$ 1,003,977	$ 940,216
Less: Accumulated depreciation and amortization	[1],[2]	(544,165)	(500,992)
Total property and equipment, net		459,812	439,224
Computer equipment
Property, Plant and Equipment
Property and equipment, gross		18,886	14,820
Software
Property, Plant and Equipment
Property and equipment, gross		84,337	67,625
Engineering and other equipment
Property, Plant and Equipment
Property and equipment, gross	[1]	443,808	407,342
Furniture and fixtures
Property, Plant and Equipment
Property and equipment, gross	[1]	33,468	31,028
Leasehold improvements
Property, Plant and Equipment
Property and equipment, gross		37,315	33,986
Land and building
Property, Plant and Equipment
Property and equipment, gross		$ 386,163	$ 385,415
[1]	Engineering and other equipment, furniture and fixtures, and accumulated depreciation and amortization include the following amounts under capital leases as of July 30, 2016, and October 31, 2015 (in thousands): July 30, 2016 October 31, 2015Cost of capitalized leases$270 $1,312Accumulated depreciation(255) (857)Property and equipment, net, under capital leases$15 $455
[2]	The following table presents the depreciation of property and equipment included in the Company’s Condensed Consolidated Statements of Income (in thousands): Three Months Ended Nine Months Ended July 30, 2016 August 1, 2015 July 30, 2016 August 1, 2015Depreciation expense$20,393 $18,605 $57,531 $55,302

Balance Sheet Details (Schedu49

Balance Sheet Details (Schedule of Capital Leased Assets) (Details) - USD ($) $ in Thousands	Jul. 30, 2016	Oct. 31, 2015
Capital Leases
Cost	$ 270	$ 1,312
Accumulated depreciation	(255)	(857)
Total	$ 15	$ 455

Balance Sheet Details (Narrativ

Balance Sheet Details (Narratives) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Balance Sheet Details [Abstract]
Depreciation expense	$ 20,393	$ 18,605	$ 57,531	$ 55,302

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value) (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands		Jul. 30, 2016	Oct. 31, 2015
Assets
Money market funds	[1]	$ 885,152	$ 1,184,410
Derivative assets		477	709
Total assets measured at fair value		885,629	1,185,119
Liabilities
Derivative liabilities		759	1,125
Total liabilities measured at fair value		759	1,125
Quoted Prices In Active Markets For Identical Instruments (Level 1)
Assets
Money market funds	[1]	885,152	1,184,410
Derivative assets		0	0
Total assets measured at fair value		885,152	1,184,410
Liabilities
Derivative liabilities		0	0
Total liabilities measured at fair value		0	0
Significant Other Observable Inputs (Level 2)
Assets
Money market funds	[1]	0	0
Derivative assets		477	709
Total assets measured at fair value		477	709
Liabilities
Derivative liabilities		759	1,125
Total liabilities measured at fair value		759	1,125
Significant Unobservable Inputs (Level 3)
Assets
Money market funds	[1]	0	0
Derivative assets		0	0
Total assets measured at fair value		0	0
Liabilities
Derivative liabilities		0	0
Total liabilities measured at fair value		$ 0	$ 0
[1]	Money market funds are reported within “Cash and cash equivalents” on the Company’s Condensed Consolidated Balance Sheets.

Restructuring and Other Costs52

Restructuring and Other Costs (Schedule of Restructuring and Other Charges) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Restructuring Charges [Abstract]
Business Exit Costs	$ 0	$ 0	$ (566)	$ (637)

Restructuring and Other Costs53

Restructuring and Other Costs (Schedule of Restructuring Reserve) (Details) $ in Thousands	9 Months Ended
	Jul. 30, 2016USD ($)
Restructuring
Initial Period in which Effects are Expected to be Realized	Cash payments for facilities that are part of the Company’s lease loss reserve are expected to be paid over the respective lease terms through fiscal year 2021.
Restructuring Reserve Rollforward
Restructuring liabilities, Beginning balance	$ 2,329
Restructuring Charges	(566)
Cash payments	(640)
Translation adjustment	(17)
Restructuring liabilities, Ending balance	1,106
Restructuring Reserve Ending Balance
Current restructuring liabilities	608
Non-current restructuring liabilities	$ 498
Fiscal 2013 Fourth Quarter Restructuring Plan
Restructuring
Restructuring and Related Activities, Description	During the fiscal year ended October 26, 2013, and the first quarter of fiscal year 2014, the Company restructured certain business operations and reduced the Company’s operating expense structure. The restructuring plan included a workforce reduction, as well as the cancellation of certain non-recurring engineering agreements and exits from certain leased facilities. The restructuring plan was substantially completed in the first quarter of fiscal year 2014.
Restructuring Reserve, Adjustment Description	The Company reevaluates its estimates and assumptions on a quarterly basis and makes adjustments to the restructuring liabilities balance if necessary. During the nine months ended July 30, 2016, the Company reversed $0.6 million of charges related to estimated facilities lease losses due to a change in lease terms for a certain facility.
Other Restructuring Plans [Member]
Restructuring
Restructuring and Related Activities, Description	The Company also recorded charges related to estimated facilities lease losses, net of expected sublease income, due to consolidation of real estate space as a result of acquisitions.
Severance and Benefits | Fiscal 2013 Fourth Quarter Restructuring Plan
Restructuring Reserve Rollforward
Restructuring liabilities, Beginning balance	$ 110
Restructuring Charges	0
Cash payments	0
Translation adjustment	0
Restructuring liabilities, Ending balance	110
Restructuring Reserve Ending Balance
Non-current restructuring liabilities	0
Lease Loss Reserve and Related Costs | Fiscal 2013 Fourth Quarter Restructuring Plan
Restructuring Reserve Rollforward
Restructuring liabilities, Beginning balance	1,811
Restructuring Charges	(566)
Cash payments	(380)
Translation adjustment	(17)
Restructuring liabilities, Ending balance	848
Restructuring Reserve Ending Balance
Current restructuring liabilities	350
Non-current restructuring liabilities	498
Lease Loss Reserve and Related Costs | Other Restructuring Plans [Member]
Restructuring Reserve Rollforward
Restructuring liabilities, Beginning balance	408
Restructuring Charges	0
Cash payments	(260)
Translation adjustment	0
Restructuring liabilities, Ending balance	148
Restructuring Reserve Ending Balance
Non-current restructuring liabilities	$ 0

Borrowings (Schedule Of Long-Te

Borrowings (Schedule Of Long-Term Debt) (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Jan. 31, 2015	Jul. 30, 2016	Oct. 31, 2015
Debt Instrument
Long-term debt, gross		$ 1,675,016	$ 875,298
Unamortized discount		(78,755)	(79,196)
Unamortized debt issuance costs		(2,873)	(2,025)
Current portion of long-term debt		(76,627)	(298)
Long-term debt, net of current portion		$ 1,516,761	793,779
Convertible Senior Unsecured 2020 Notes
Debt Instrument
Maturity	Jan. 1, 2020	Jan. 1, 2020
Stated annual interest rate		1.375%
Long-term debt, gross		$ 575,000	$ 575,000
Effective interest rate		4.98%	4.98%
Unamortized discount		$ (63,706)	$ (76,311)
Senior Unsecured 2023 Notes
Debt Instrument
Maturity		Jan. 15, 2023
Stated annual interest rate		4.625%
Long-term debt, gross		$ 300,000	$ 300,000
Effective interest rate		4.83%	4.83%
Capital Lease Obligations
Debt Instrument
Maturity		May 31, 2016
Stated annual interest rate		4.625%
Long-term debt, gross		$ 16	$ 298
Effective interest rate		4.63%	4.63%
Term Loan Facility
Debt Instrument
Maturity		May 27, 2021
Long-term debt, gross		$ 800,000	$ 0
Effective interest rate		2.50%	0.00%

Borrowings (Schedule of Carryin

Borrowings (Schedule of Carrying Values of Liability and Equity Components) (Details) - USD ($) $ in Thousands	Jul. 30, 2016	Oct. 31, 2015
Debt Instrument
Long-term debt, gross	$ 1,675,016	$ 875,298
Unamortized discount	(78,755)	(79,196)
Convertible Senior Unsecured 2020 Notes
Debt Instrument
Long-term debt, gross	575,000	575,000
Unamortized discount	(63,706)	(76,311)
Long-term Debt	511,294	498,689
Carrying amount of equity component	$ 59,293	$ 70,765

Borrowings (Narrative) (Details

Borrowings (Narrative) (Details) $ / shares in Units, shares in Millions

1 Months Ended

3 Months Ended

9 Months Ended

Jan. 31, 2015USD ($)shares$ / shares

Jul. 30, 2016USD ($)$ / sharesshares

Apr. 30, 2016$ / shares

Jan. 30, 2016$ / shares

Aug. 01, 2015$ / shares

Jan. 31, 2015USD ($)

Jul. 30, 2016USD ($)shares$ / shares

Aug. 01, 2015USD ($)$ / shares

Oct. 31, 2015USD ($)

Jan. 14, 2015USD ($)$ / sharesshares

Jan. 22, 2013USD ($)

Jan. 20, 2010USD ($)

Debt Instrument

Proceeds from convertible notes

$ 0

$ 565,656,000

Cash dividends declared per share | $ / shares

$ 0.055

$ 0.045

$ 0.045

$ 0.045

$ 0.145

$ 0.115

Purchase of convertible hedge

$ 0

$ 86,135,000

Proceeds from issuance of warrants

$ 0

$ 51,175,000

Senior Secured 2020 Notes

Debt Instrument

Debt Instrument, Face Amount

$ 300,000,000

Debt Instrument, Redemption Price, Percentage

103.438%

Irrevocable deposit

$ 322,200,000

Repayment of principal amount

300,000,000

Call premium

10,300,000

Debt Instrument, Increase, Accrued Interest

$ 10,300,000

Unpaid interest deposited to escrow

1,600,000

Call premium cost and original issue discount and debt issuance costs related to lenders that did not participate in refinancing

$ 20,400,000

Convertible Senior Unsecured 2020 Notes

Debt Instrument

Long-Term Debt, Fair Value

$ 560,400,000

$ 560,400,000

$ 568,000,000

Debt Instrument, Face Amount

$ 575,000,000

Proceeds from convertible notes

$ 565,700,000

DiscountRateForFairValueOfLiabilityComponent

4.57%

Debt Instrument, Convertible, Remaining Discount Amortization Period

3 years 5 months 1 day

Maturity

Jan. 1, 2020

Jan. 1, 2020

Debt Instrument, Convertible, Conversion Ratio

62.7746

63.1587

Debt Instrument, Convertible, Number of Equity Instruments | shares

36.1

36.3

Debt Instrument, Convertible, Conversion Price | $ / shares

$ 15.83

$ 15.83

$ 15.93

Debt Instrument, Convertible, If-converted Value in Excess of Principal

$ 0

Repurchase price of notes in case of change in control, percentage of face value

100.00%

Shares Covered By Note Hedge | shares

36.1

Note Hedge, Exercise Price | $ / shares

$ 15.93

$ 15.83

Purchase of convertible hedge

$ 86,100,000

Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares

36.3

36.3

36.1

Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares

$ 20.52

$ 20.52

$ 20.65

Class of Warrant or Right, Date from which Warrants or Rights Exercisable

Apr. 1, 2020

WarrantsMaturityPeriod

60 days

Proceeds from issuance of warrants

$ 51,200,000

Convertible Senior Unsecured 2020 Notes | Trading Price Trigger One

Debt Instrument

Debt Instrument, Convertible, Threshold Trading Days

20

Debt Instrument, Convertible, Threshold Consecutive Trading Days

30 days

Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger

130.00%

Convertible Senior Unsecured 2020 Notes | Trading Price Trigger Two

Debt Instrument

Debt Instrument, Convertible, Threshold Trading Days

5

Debt Instrument, Convertible, Threshold Consecutive Trading Days

10 days

Debt Instrument, Convertible, Threshold Percentage of Notes Price Trigger

98.00%

Senior Unsecured 2023 Notes

Debt Instrument

Long-Term Debt, Fair Value

$ 296,200,000

$ 296,200,000

$ 293,900,000

Debt Instrument, Face Amount

$ 300,000,000

Maturity

Jan. 15, 2023

Repurchase price of notes in case of change in control, percentage of face value

101.00%

Debt Instrument, Redemption Price, Percentage

100.00%

Senior Credit Facility

Debt Instrument

Line of Credit Facility, Interest Rate Description

Loans made under the Senior Credit Facility bear interest, at the Company’s option, either (i) at a base rate which is based in part on the greatest of (A) the prime rate, (B) the federal funds rate plus 0.50%, or (C) LIBOR for an interest period of one month plus 1.00%, plus an applicable margin that will vary between 0.00% and 0.75% based on the Company’s total leverage ratio or (ii) at a LIBOR-based rate, plus an applicable margin that will vary between 1.00% and 1.75% based on the Company’s total leverage ratio. For purposes of calculating the applicable rate, the base rate and LIBOR-based rate are subject to a floor of 0.00%. For base rate loans, interest is payable on the last business day of January, April, July and October of each year. For LIBOR rate loans, interest is payable on the last day of each interest period for the LIBOR-based rate, and if such interest period extends over three months, at the end of each three-month interval during such interest period.

Line of Credit Facility, Collateral

The Company’s obligations under the Senior Credit Facility are unsecured, provided that upon the occurrence of certain events (including if the Company’s corporate family rating from Moody’s falls below Ba1 and from S&P falls below BB+ at any time (referred to as a “Ratings Downgrade”)) or the incurrence of certain indebtedness in excess of $600 million (such occurrence or the occurrence of a Ratings Downgrade being a “Collateral Trigger Event”), then such obligations, as well as certain cash management and hedging obligations, will be required to be secured, subject to certain exceptions, by 100% of the equity interests of all present and future restricted subsidiaries directly held by the Company or any guarantor.

Term Loan Facility

Debt Instrument

Line of Credit Facility, Maximum Borrowing Capacity

800,000,000

$ 800,000,000

Long-Term Debt, Fair Value

786,500,000

$ 786,500,000

Maturity

May 27, 2021

Revolving Credit Facility

Debt Instrument

Line of Credit Facility, Maximum Borrowing Capacity

100,000,000

$ 100,000,000

Line of Credit Facility, Unused Capacity, Commitment Fee Percentage

0.30%

Line of Credit Facility, Fair Value of Amount Outstanding

0

$ 0

Revolving Credit Facility | Minimum [Member]

Debt Instrument

Line of Credit Facility, Unused Capacity, Commitment Fee Percentage

0.20%

Revolving Credit Facility | Maximum [Member]

Debt Instrument

Line of Credit Facility, Unused Capacity, Commitment Fee Percentage

0.35%

Letter of Credit Subfacility

Debt Instrument

Line of Credit Facility, Maximum Borrowing Capacity

25,000,000

$ 25,000,000

Line Of Credit Facility Commission Fee Percentage

1.50%

Line Of Credit Facility Issuance Fee Percentage

0.125%

Letter of Credit Subfacility | Minimum [Member]

Debt Instrument

Line Of Credit Facility Commission Fee Percentage

1.00%

Letter of Credit Subfacility | Maximum [Member]

Debt Instrument

Line Of Credit Facility Commission Fee Percentage

1.75%

Swing Line Loan Subfacility

Debt Instrument

Line of Credit Facility, Maximum Borrowing Capacity

$ 10,000,000

$ 10,000,000

Borrowings Borrowings (Schedule

Borrowings Borrowings (Schedule Of Interest Expense) (Details) - Convertible Senior Unsecured 2020 Notes - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Amortization of discount	$ 4,254	$ 4,048	$ 12,606	$ 8,792
Interest Expense, Debt, Excluding Amortization	$ 1,977	$ 1,977	$ 5,930	$ 4,323

Borrowings (Schedule Of Debt Ma

Borrowings (Schedule Of Debt Maturities) (Details) - USD ($) $ in Thousands	Jul. 30, 2016	Oct. 31, 2015
Long-term Debt, by Maturity [Abstract]
2016 (remaining three months)	$ 20,016
2,017	80,000
2,018	80,000
2,019	80,000
2,020	655,000
Thereafter	760,000
Long-term debt, gross	$ 1,675,016	$ 875,298

Commitments And Contingencies59

Commitments And Contingencies (Schedule Of Accrued Liability For Estimated Future Warranty Costs) (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015
Product Warranty Activity
Beginning balance	$ 7,599	$ 7,486
Standard Product Warranty Accrual, Additions from Business Acquisition	760	0
Liabilities accrued for warranties issued during the period	2,768	3,059
Warranty claims paid and used during the period	(2,736)	(3,221)
Changes in liability for pre-existing warranties during the period	(60)	(125)
Ending balance	$ 8,331	$ 7,199

Commitments And Contingencies60

Commitments And Contingencies (Purchase Commitment Narrative) (Details) (Details) - Inventory Purchase Commitment $ in Millions	Jul. 30, 2016USD ($)
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Purchase Commitment, Remaining Minimum Amount Committed	$ 220
Purchase Commitment, Recognized Loss	$ 3.6

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies (Legal Proceedings) (Details) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Jul. 30, 2016USD ($)shares	May 27, 2016$ / sharesshares	Oct. 31, 2015shares
Legal Proceedings [Line Items]
Common stock, shares outstanding	400,679		413,923
Ruckus
Legal Proceedings [Line Items]
Common stock, shares outstanding		92,200
Cash Per Share in Acquisition | $ / shares		$ 6.45
Common Stock Per Share in Acquisition		0.75
Business Combination, Consideration Transferred, Liabilities Incurred | $	$ 41.7
Ruckus | Aggregate Value of Dissenting Shares [Member]
Legal Proceedings [Line Items]
Business Combination, Consideration Transferred, Liabilities Incurred | $	$ 41.3
Shares Dissented [Member] | Ruckus
Legal Proceedings [Line Items]
Common stock, shares outstanding		3,200

Derivative Instruments And He62

Derivative Instruments And Hedging Activities (Schedule Of Net Gains (Losses) Related To The Effective Portion Of Foreign Currency Derivatives) (Details) - Foreign Exchange Contract - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Derivative Instruments, Gain (Loss)
Net gains (losses) related to the effective portion of foreign currency derivatives	$ (507)	$ (941)	$ (1,981)	$ (2,879)
Cost of revenues
Derivative Instruments, Gain (Loss)
Net gains (losses) related to the effective portion of foreign currency derivatives	(35)	(141)	(195)	(605)
Research and development
Derivative Instruments, Gain (Loss)
Net gains (losses) related to the effective portion of foreign currency derivatives	(342)	(206)	(968)	(273)
Sales and marketing
Derivative Instruments, Gain (Loss)
Net gains (losses) related to the effective portion of foreign currency derivatives	(120)	(542)	(764)	(1,866)
General and administrative
Derivative Instruments, Gain (Loss)
Net gains (losses) related to the effective portion of foreign currency derivatives	$ (10)	$ (52)	$ (54)	$ (135)

Derivative Instruments And He63

Derivative Instruments And Hedging Activities (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Maximum derivative instrument maturity period			15 months
Foreign Currency Transaction [Abstract]
Foreign currency transaction gains (losses)	$ (0.2)	$ 0.3	$ (0.8)	$ (0.6)
Derivatives Designated As Hedging Instruments | Other Current Assets [Member]
Derivative Instruments, Gain (Loss)
Gross unrealized gain positions	0.5		0.5
Derivatives Designated As Hedging Instruments | Other Current Liabilities [Member]
Derivative Instruments, Gain (Loss)
Gross unrealized loss positions	$ (0.8)		$ (0.8)

Derivative Instruments And He64

Derivative Instruments And Hedging Activities (Schedule Of Total Gross Notional Amounts, Presented By Currency) (Details) - Derivatives Designated As Hedging Instruments - USD ($) $ in Thousands	Jul. 30, 2016	Oct. 31, 2015
Derivative
Total gross notional amounts, presented by currency	$ 41,270	$ 169,886
United Kingdom, Pounds
Derivative
Total gross notional amounts, presented by currency	9,940	46,330
Euro Member Countries, Euro
Derivative
Total gross notional amounts, presented by currency	10,410	40,961
India, Rupees
Derivative
Total gross notional amounts, presented by currency	8,836	35,647
China, Yuan Renminbi
Derivative
Total gross notional amounts, presented by currency	3,629	15,129
Singapore, Dollars
Derivative
Total gross notional amounts, presented by currency	3,484	13,745
Japan, Yen
Derivative
Total gross notional amounts, presented by currency	2,606	8,809
Switzerland, Francs
Derivative
Total gross notional amounts, presented by currency	$ 2,365	$ 9,265

Stock-Based Compensation (Stock

Stock-Based Compensation (Stock-Based Compensation Expense Included In Line Items Of Consolidated Statements Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	$ 44,643	$ 24,437	$ 93,475	$ 64,594
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	5,965	3,955	12,400	9,757
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	9,206	5,226	19,805	13,239
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	17,756	10,601	39,886	27,651
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total stock-based compensation expense	$ 11,716	$ 4,655	$ 21,384	$ 13,947

Stock-Based Compensation (Sto66

Stock-Based Compensation (Stock-Based Compensation Expense By Grant Type) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Share-based Compensation Arrangement by Share-based Payment Award
Total stock-based compensation expense	$ 44,643	$ 24,437	$ 93,475	$ 64,594
Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Total stock-based compensation expense	3,291	973	4,727	2,865
RSUs, including restricted stock units with market conditions
Share-based Compensation Arrangement by Share-based Payment Award
Total stock-based compensation expense	35,604	18,941	75,986	48,192
Employee stock purchase plan (“ESPP”)
Share-based Compensation Arrangement by Share-based Payment Award
Total stock-based compensation expense	$ 5,748	$ 4,523	$ 12,762	$ 13,537

Stock-Based Compensation (Sto67

Stock-Based Compensation (Stock-Based Compensation, Unrecognized Compensation Expense And Weighted-Average Period) (Details) $ in Thousands	9 Months Ended
	Jul. 30, 2016USD ($)
Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Unrecognized Compensation Expense	$ 2,161
Weighted-Average Period (in years)	1 year 1 month 6 days
RSUs, including restricted stock units with market conditions
Share-based Compensation Arrangement by Share-based Payment Award
Unrecognized Compensation Expense	$ 166,357
Weighted-Average Period (in years)	2 years 8 months 8 days
Employee stock purchase plan (“ESPP”)
Share-based Compensation Arrangement by Share-based Payment Award
Unrecognized Compensation Expense	$ 24,497
Weighted-Average Period (in years)	1 year 2 months 16 days

Stock-Based Compensation (Sched

Stock-Based Compensation (Schedule of Share-based Compensation, Activity) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015
Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Stock options, Granted	1,390	1,117
Stock options, Weighted-Average Grant Date Fair Value (dollars per share)	$ 1.36	$ 3.09
Stock options, Exercises in Period, Total Intrinsic Value	$ 1.2	$ 2.9
RSUs, including restricted stock units with market conditions
Share-based Compensation Arrangement by Share-based Payment Award
RSUs, Granted	17,879	10,251
RSUs, Weighted-Average Grant Date Fair Value (dollars per share)	$ 7.90	$ 11.53

Stockholders' Equity Stockholde

Stockholders' Equity Stockholders' Equity (Schedule of Dividends Payable) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				9 Months Ended
	Jul. 30, 2016	Apr. 30, 2016	Jan. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Dividends Payable [Line Items]
Cash dividends declared per share	$ 0.055	$ 0.045	$ 0.045	$ 0.045	$ 0.145	$ 0.115
Payments of Ordinary Dividends, Common Stock					$ 61,706	$ 48,819
Common Stock
Dividends Payable [Line Items]
Dividends Payable, Date Declared	May 18, 2016	Feb. 16, 2016	Nov. 22, 2015
Dividends Payable, Date of Record	Jun. 10, 2016	Mar. 10, 2016	Dec. 10, 2015
Payments of Ordinary Dividends, Common Stock	$ 25,261	$ 18,016	$ 18,429
Dividends Payable, Date to be Paid	Jul. 5, 2016	Apr. 4, 2016	Jan. 4, 2016

Stockholders' Equity Stockhol70

Stockholders' Equity Stockholders' Equity (Details)	9 Months Ended
	Jul. 30, 2016
Equity [Abstract]
Stockholders' Equity Note, Derivative Transactions Connected with Contingently Convertible Securities	In connection with the issuance of the 2020 Convertible Notes, the Company entered into convertible note hedge and warrant transactions with certain financial institutions with respect to its common stock. See Note 8, “Borrowings,” of the Notes to Condensed Consolidated Financial Statements for further discussion.

Stockholders' Equity (Schedule

Stockholders' Equity (Schedule of Comprehensive Income (Loss) Tax Effects) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Unrealized gains (losses) on cash flow hedges, before tax
Change in unrealized gains and losses, foreign exchange contracts, before tax		$ (715)	$ (361)	$ (1,056)	$ (2,558)
Net gains and losses reclassified into earnings, foreign exchange contracts, before tax	[1]	507	941	1,981	2,879
Net unrealized losses on cash flow hedges, before tax		(208)	580	925	321
Foreign currency translation adjustments, before tax
Foreign currency translation adjustments, before tax		(1,628)	(492)	(1,760)	(5,781)
Total other comprehensive loss, before tax		(1,836)	88	(835)	(5,460)
Unrealized gains (losses) on cash flow hedges, tax
Change in unrealized gains and losses, foreign exchange contracts, tax		15	(53)	21	226
Net gains and losses reclassified into earnings, foreign exchange contracts, tax	[1]	(25)	(110)	(150)	(335)
Net unrealized losses on cash flow hedges, tax		(10)	(163)	(129)	(109)
Foreign currency translation adjustments, tax
Foreign currency translation adjustments, tax		0	0	0	0
Total other comprehensive loss, tax		(10)	(163)	(129)	(109)
Unrealized gains (losses) on cash flow hedges, net of tax
Change in unrealized gains and losses, foreign exchange contracts, net of tax		(700)	(414)	(1,035)	(2,332)
Net gains and losses reclassified into earnings, foreign exchange contracts, net of tax	[1]	482	831	1,831	2,544
Net unrealized gains (losses) on cash flow hedges		(218)	417	796	212
Foreign currency translation adjustments, net of tax
Foreign currency translation adjustments, net of tax		(1,628)	(492)	(1,760)	(5,781)
Total other comprehensive income (loss)		$ (1,846)	$ (75)	$ (964)	$ (5,569)
[1]	For classification of amounts reclassified from accumulated other comprehensive loss into earnings as reported on the Company’s Condensed Consolidated Statements of Income, see Note 10, “Derivative Instruments and Hedging Activities,” of the Notes to Condensed Consolidated Financial Statements.

Stockholders' Equity (Schedul72

Stockholders' Equity (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015
Accumulated Other Comprehensive Income (Loss)
AOCI, Net of Tax, Beginning Balance	$ (25,002)	$ (18,814)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Change in unrealized gains and losses	(2,795)	(8,113)
Net gains and losses reclassified into earnings	1,831	2,544
Net current-period other comprehensive income (loss)	(964)	(5,569)
AOCI, Net of Tax, Ending Balance	(25,966)	(24,383)
Losses on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss)
AOCI, Net of Tax, Beginning Balance	(1,539)	(1,907)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Change in unrealized gains and losses	(1,035)	(2,332)
Net gains and losses reclassified into earnings	1,831	2,544
Net current-period other comprehensive income (loss)	796	212
AOCI, Net of Tax, Ending Balance	(743)	(1,695)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss)
AOCI, Net of Tax, Beginning Balance	(23,463)	(16,907)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Change in unrealized gains and losses	(1,760)	(5,781)
Net gains and losses reclassified into earnings	0	0
Net current-period other comprehensive income (loss)	(1,760)	(5,781)
AOCI, Net of Tax, Ending Balance	$ (25,223)	$ (22,688)

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) $ in Millions	9 Months Ended
	Jul. 30, 2016USD ($)
Current Income Tax Expense (Benefit), Continuing Operations
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Income Tax Contingency
Unrecognized Tax Benefits	$ 189.1
Amount of unrecognized tax benefits that could affect the effect tax rate	144
Minimum [Member]
Income Tax Contingency
Decrease in Unrecognized Tax Benefits is Reasonably Possible	0
Maximum [Member]
Income Tax Contingency
Decrease in Unrecognized Tax Benefits is Reasonably Possible	$ 5

Segment Information (Schedule O

Segment Information (Schedule Of Financial Information By Reportable Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Segment Reporting Information
Net revenues	$ 590,721	$ 551,819	$ 1,688,311	$ 1,674,633
Service	99,726	88,619	287,956	266,952
Cost of revenues	233,822	179,915	592,286	540,837
Gross margin	356,899	371,904	1,096,025	1,133,796
Storage Area Networking (“SAN”) Products
Segment Reporting Information
Net revenues	282,114	309,451	925,799	976,362
Cost of revenues	70,630	73,657	223,806	233,150
Gross margin	211,484	235,794	701,993	743,212
IP Networking Products
Segment Reporting Information
Net revenues	208,881	153,749	474,556	431,319
Cost of revenues	117,862	70,586	240,991	198,631
Gross margin	91,019	83,163	233,565	232,688
Global Services
Segment Reporting Information
Net revenues	99,726	88,619	287,956	266,952
Cost of revenues	45,330	35,672	127,489	109,056
Gross margin	$ 54,396	$ 52,947	$ 160,467	$ 157,896

Segment Information Narrative (

Segment Information Narrative (Details)	9 Months Ended
	Jul. 30, 2016segments
Segment Reporting [Abstract]
Number of operating segments	3
Number of reportable operating segments	3

Net Income Per Share (Schedule

Net Income Per Share (Schedule Of Calculation Of Basic And Diluted Net Income (Loss) Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015	Jan. 14, 2015
Earnings Per Share, Basic
Net income		$ 10,495	$ 91,667	$ 147,226	$ 255,974
Weighted-average shares used in computing basic net income per share		426,671	417,299	411,709	422,184
Net income per share—basic		$ 0.02	$ 0.22	$ 0.36	$ 0.61
Earnings Per Share, Diluted
Net income		$ 10,495	$ 91,667	$ 147,226	$ 255,974
Weighted-average shares used in computing diluted net income per share		434,416	427,518	419,416	433,303
Net income per share—diluted		$ 0.02	$ 0.21	$ 0.35	$ 0.59
Weighted Average Number of Shares Outstanding Reconciliation
Weighted-average shares used in computing basic net income per share		426,671	417,299	411,709	422,184
Dilutive potential common shares in the form of stock options		1,227	1,772	1,329	1,777
Dilutive potential common shares in the form of other share-based awards		6,518	8,447	6,378	9,342
Weighted-average shares used in computing diluted net income per share		434,416	427,518	419,416	433,303
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive potential common shares	[1]	2,838	1,109	2,029	934
Other share-based awards
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive potential common shares	[1]	2,120	100	1,140	33
Convertible Senior Unsecured 2020 Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share
Debt Instrument, Convertible, Conversion Price		$ 15.83		$ 15.83		$ 15.93
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 20.52		$ 20.52		$ 20.65
Convertible Senior Unsecured 2020 Notes | Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive potential common shares	[1],[2]	36,316	36,125	36,251	26,453
[1]	These amounts are excluded from the computation of diluted net income per share.
[2]	In connection with the issuance of the 2020 Convertible Notes, the Company entered into convertible note hedge and warrant transactions as described in Note 8, “Borrowings.” The 2020 Convertible Notes have no impact on diluted earnings per share until the average quarterly price of the Company’s common stock exceeds the adjusted conversion price of $15.83 per share. If the common stock price exceeds this adjusted conversion price, then, prior to conversion, the Company will calculate the effect of the additional shares that may be issued using the treasury stock method. If the average price of the Company’s common stock exceeds $20.52 per share for a quarterly period, the Company’s weighted-average shares used in computing diluted net income per share will be impacted by the effect of the additional potential shares that may be issued related to the warrants using the treasury stock method. The convertible note hedge is not considered for purposes of the diluted earnings per share calculation, as its effect would be antidilutive.