EXHIBIT 10.1

                       BROCADE COMMUNICATION SYSTEMS, INC.

                          TERMS OF EMPLOYMENT AGREEMENT

1. Position and Duties:       Consultant to the Chief Executive Officer (the
                              "CEO") of Brocade Communications Systems Inc. (the
                              "Company") and to the Board of Directors of the
                              Company (the "Board"). Consultant reports to the
                              CEO and the Board. Consultant will render such
                              business and professional services in ways and at
                              times as reasonably directed by the CEO and the
                              Board which are consistent with his role as a
                              strategic advisor. Consultant will work
                              exclusively for the Company during the Term of
                              Employment, except that Consultant may continue
                              his affiliation with the San Jose Sharks, serve on
                              other boards of directors (subject to paragraph 14
                              below) and/or perform services for tax-qualified
                              charitable organizations. Consultant agrees he
                              will not stand for reelection as a Board member at
                              the next annual meeting.

2. Term of Agreement:         Two years, beginning effective January 18, 2005
                              (the "Effective Date").

3. Term of Employment:        At will; employment may be terminated by
                              Consultant or the Company, at any time. Severance
                              payable, as described below, upon the Company's
                              termination of Consultant without "Cause" (as
                              defined under "Severance" below) or Consultant's
                              resignation for "Good Reason" (as defined under
                              "Severance" below).

4. Total Cash Compensation:   $910,000 per year, consisting of $520,000 in base
                              salary and $390,000 in incentive compensation.
                              Payment of Total Cash Compensation is based on the
                              fulfillment of the terms and conditions of this
                              agreement. The Total Cash Compensation will be
                              paid periodically in accordance with the Company's
                              normal payroll and incentive compensation
                              practices and procedures and will be subject to
                              the usual, required withholdings.

5. Expenses:                  The Company will reimburse the Consultant for all
                              reasonable travel, entertainment and other
                              expenses incurred by the Consultant in the
                              furtherance of his performance of his duties, in
                              accordance with the Company's expense
                              reimbursement policy in effect from time to time.
                              In addition, the Company will


                              reimburse the Consultant for the expense incurred
                              by the Consultant in the operation of his private
                              plane, when used for Company business, up to the
                              first class ticket market rate charged by
                              commercial airlines.

6. Options:                   The Consultant's options will continue to vest in
                              accordance with the current vesting schedules in
                              the Consultant's option agreements during the Term
                              of Employment, and subject to the acceleration
                              described under "Severance" below.

7. Benefits:                  During the Term of Employment, Consultant will be
                              eligible to participate in the Company's employee
                              benefit plans, policies and arrangements
                              applicable to other employees, as in place from
                              time to time, subject to the continued benefits
                              described in "Severance" below.

8. Termination of Employment: In the event Consultant's employment with the
                              Company terminates for any reason, the Consultant
                              shall be entitled to (a) all Base Salary accrued
                              up to the effective date of termination, (b) all
                              pay for accrued by unused vacation that the
                              Company is legally obligated to pay Consultant, if
                              any, (c) all benefits or compensation accrued
                              prior to termination, as provided under the terms
                              of any employee benefit and compensation
                              agreements or plans applicable to the Consultant,
                              and (d) all business expenses required to
                              reimbursed under the Company's expense
                              reimbursement policy to the Consultant with
                              respect to business expenses incurred prior to
                              termination. In addition, if the termination is by
                              the Company without Cause or by the Consultant for
                              Good Reason, he shall be entitled to the amounts
                              and benefits specified in paragraph 10; provided,
                              however, that the amounts specified in paragraph
                              10 will be reduced by amounts that Consultant is
                              eligible to receive as severance under any other
                              Company plan, policy, or practice. If the
                              termination is by the Company for Cause, the
                              Consultant is entitled to no severance or "Change
                              of Control" amounts and benefits specified in
                              paragraph 10.

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9. D&O Insurance              Consultant will retain any and all rights under
                              the Company's D&O policy through his employment
                              and while liability exists thereafter.

10. Severance: (1)            In the event that during the term of the
                              Agreement, the Company terminates Consultant's
                              employment without "Cause" or Consultant resigns
                              for "Good Reason," Consultant shall receive: (i)
                              continued payment of Consultant's base salary and
                              incentive compensation for the "Severance Period"
                              (ii) reimbursement for COBRA premiums for
                              Consultant and Consultant's eligible dependents,
                              payable when such premiums are due, provided
                              Consultant elects to continue medical coverage
                              under applicable law for the "Severance Period"
                              and (iii) continued vesting for the "Severance
                              Period" with respect to all outstanding equity
                              awards granted by the Company. "Severance Period"
                              means the period beginning on the day following
                              Consultant's termination of employment and ending
                              on the date that is 24 months from the Effective
                              Date.


                              Consultant's options that vested prior to
                              termination are subject to the terms and
                              conditions in accordance with the applicable
                              option agreements. Consultant shall be permitted
                              to exercise those options that continue vesting
                              for the Severance Period in accordance with this
                              Agreement until ninety days after the end of the
                              Severance Period.

                              If a Change of Control occurs while the Consultant
                              is employed under this Agreement, Consultant will
                              receive accelerated vesting with respect to 100%
                              of the then unvested portion of all outstanding
                              equity awards.

                              The severance payments and accelerated vesting
                              will be subject to applicable tax withholding and
                              to (i) Consultant signing and not revoking a
                              separation

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     (1) Under the new Internal Revenue Code Section 409A, such severance may be
subject to an additional 20% income tax and interest penalties to Consultant,
unless the severance is distributed at least 6 months after the Consultant
terminates employment. Therefore, we should discuss accruing the severance
benefits to Consultant during the first 6 months but delaying actual payment of
the benefits until 6 months have elapsed to meet the requirements of Internal
Revenue Code Section 409A to avoid an additional tax on the Consultant under
Section 409A.

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                              agreement and release of claims satisfactory to
                              the Company and (ii) Consultant continuing to
                              comply with the non-solicitation, non-compete, and
                              non-disparagement agreements with the Company
                              described under "Non-Solicitation, Non-Competition
                              and Non-Disparagement" below.

                              "Cause" means (i) Consultant's willful failure to
                              perform his assigned duties and responsibilities
                              reasonably assigned to him that are not corrected
                              within a fifteen (15) day correction period, after
                              there has been delivered to Consultant a written
                              demand for performance from the CEO or the Board
                              of Directors which describes the basis for the
                              belief of the CEO or the Board of Directors that
                              Consultant has not substantially performed his
                              duties and provides Consultant with fifteen (15)
                              days to take corrective action; (ii) any act of
                              personal dishonesty taken by Consultant in
                              connection with his responsibilities as an
                              employee of the Company with the intention or
                              reasonable expectation that such may result in
                              substantial personal enrichment of Consultant;
                              (iii) Consultant's conviction of, or plea of nolo
                              contendere to, a felony which the Board reasonably
                              believes has had or will have a material
                              detrimental effect on the Company's reputation or
                              business; or (iv) Consultant materially breaching
                              Consultant's Confidential Information Agreement
                              (defined below) or the Consultant's exclusive
                              employment, non-compete, non-solicitation and
                              non-disparagement agreements with the Company
                              described under "Terms of Employment" above and
                              "Non-Solicitation, Non-Competition and
                              Non-Disparagement" below, which breach is (if
                              capable of cure) not cured within fifteen (15)
                              days after the Company gives written notice to the
                              Consultant of the breach.

                              "Good Reason" means the occurrence of any of the
                              following, without Consultant's consent, prior to
                              a Change of Control or more than twelve (12)
                              months following a Change of Control: (i) a
                              reduction in Consultant's Base Salary; (ii) the
                              Company requiring Consultant to relocate his
                              principal place of business or the Company
                              relocating its headquarters, in either case to a
                              facility or location outside of a twenty-five (25)

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                              mile radius from Consultant's current principal
                              place of employment; or (iii) any material breach
                              by the Company of this agreement; provided,
                              however, that Consultant only will have Good
                              Reason if the event or circumstances constituting
                              Good Reason specified in any of the preceding
                              clauses is not cured within fifteen (15) days
                              after Consultant gives written notice to the
                              Board.

                              "Change of Control" means (i) an acquisition of
                              the Company through the sale of all or
                              substantially all of its assets; (ii) a merger or
                              other business combination in which the Company is
                              not the surviving entity, or any reverse merger
                              where the Company is the surviving entity in each
                              case where more than 50% of the Company's combined
                              voting power is transferred to a person(s)
                              different from those holding such voting power
                              immediately prior to such acquisition; or (iii) an
                              acquisition by any person or related group of
                              persons, other than a group that includes
                              Consultant and other than the Company, of
                              beneficial ownership of securities possessing more
                              than 50% of the total combined voting power of the
                              Company's outstanding securities.

11. Indemnification:          Full "Rite-Aid" rights.

12. Death and Disability:     In the event of a termination of Consultant's
                              employment due to death or disability, Consultant
                              will be entitled to payments and benefits only in
                              accordance with the Company's standard plans,
                              programs, and practices.

13. Full Release:             Consultant will sign a full release of any and all
                              claims, duties, obligations, actions and causes of
                              action, whether known or unknown, which he now
                              has, ever had, or shall or may hereafter have
                              against the Company, its directors, officers,
                              employees, advisors and related parties arising
                              from, directly or indirectly, any events, acts or
                              omissions that occurred prior to the date of
                              execution of the Employment Agreement. Pursuant to
                              paragraph 10, and as a condition to receive the
                              severance payments as described above, Consultant
                              will sign a supplemental release containing
                              similar terms promptly following termination.

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14. Non-Solicitation,
    Non-Competition and
    Non-Disparagement:        During the period of employment and two years
                              thereafter, Consultant shall not (i) solicit any
                              employee of the Company for employment other than
                              at the Company, (ii) directly or indirectly
                              provide services to, have any ownership interest
                              in or participate in any entity that competes with
                              the Company, or (iii) knowingly disparage,
                              criticize, or otherwise make any derogatory
                              statements regarding the Company and/or its
                              officers or directors. A general advertisement not
                              targeted specifically at a Company employee or
                              employees that is placed in general circulation
                              media outlets will not be a violation of clause
                              (i). Notwithstanding clause (i), upon the request
                              of a Company employee, Consultant may serve as an
                              employment reference for the employee. The Company
                              (in officially sanctioned communications) will not
                              knowingly disparage, criticize, or otherwise make
                              any derogatory statements regarding the
                              Consultant. The Company will instruct its officers
                              and directors to not knowingly disparage,
                              criticize, or otherwise make any derogatory
                              statements regarding the Consultant.

15. Arbitration:              All disputes arising as a result of Consultant's
                              employment, including the termination thereof, or
                              Consultant's compensation or benefits shall be
                              resolved through binding arbitration.

16. Attorneys' Fees:          The Company shall reimburse Consultant up to
                              $50,000 for reasonable attorneys' fees incurred in
                              the negotiation of this term sheet and the
                              preparation, and execution of an Employment
                              Agreement reflecting this term sheet.

17. Supersedes:               The Employment Agreement will supersede all other
                              agreements between the Company or any subsidiary
                              and Consultant except the Confidential Information
                              Agreement and standard forms of equity award grant
                              and/or agreement (provided that the "Severance"
                              and "Change of Control" related acceleration and
                              exercisability provisions contained in the
                              Employment Agreement, to the extent they differ
                              from existing provisions, shall supersede any such
                              provisions contained in the equity award grant
                              and/or agreement).

18. Governing Law:            The Employment Agreement will be governed by the
                              internal laws of the State of California, without
                              reference to the principles of conflicts of laws
                              thereof.

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