Exhibit 10.22



March 16, 1998



Mr. Jack Musgrove
33206 Falcon Drive
Fremont, CA 94555

Re:  Separation Terms

Dear Jack,

This letter  confirms the terms of your  separation  from your  employment  with
Digital Link Corporation.

1.  Termination  Date. Your employment with the Company is terminated  effective
March 16, 1998.

2.  Acknowledge of Payment of Wages. We herewith deliver to you a final paycheck
for all accrued wages, salary,  bonuses,  accrued but unused PTO and any similar
payments due and owing to you from the Company as of the  termination  date. You
also have 10,000 shares of the Company's Common Stock available to purchase from
stock option grant # 1458 pursuant to the terms and condition of the grant.  You
have no other  vested  options.  Your rights  under ESPP will be governed by the
provisions of the plan.

3. COBRA  Coverage.  Your health  coverage  expires March 31, 1998. You have the
option, at your own expense,  to extend the health insurance  coverage currently
provided by the  Company for a period of 18 months from March 31, 1998  pursuant
to the terms and conditions of COBRA. You have 60 days from the termination date
to  notify  the  Company  in  writing  of  your  election  to so  continue  your
continuation  coverage.  You will receive a packet,  by certified mail, from the
Company providing additional information regarding your COBRA benefits.

4.  Payment.  In addition,  it has been agreed that you will receive  additional
compensation  for 6 months of base pay as  severance  pay. The Company will also
pay an amount equal to your current health insurance  benefits for a period of 6
months  beginning  April 1, 1998. In addition,  the Company will pay $15,000 for
documented outplacement services for assistance in finding new employment. These
severance  benefits  are in addition to any amounts due you from the Company and
are  given  as  consideration  for the  release  set  forth  below.  All  normal
withholding will be applied to the 6 months of severance pay.

If you  choose to sign  this  agreement,  you will then be given  seven (7) days
after  you  sign  the  agreement  to  revoke  it and the  agreement  will not be
effective  until after this seven-day  period has lapsed.  You also  acknowledge
that the Company will not begin your  severance  benefits  until seven days from
the time you sign this agreement has expired.

5. Return of Company  Property.  You hereby represent and warrant to the Company
that you will return to the Company any and all  property or data of the Company
of any type whatsoever that may have been in your possession or control by March
20, 1998.

6.  Proprietary  Information.  You hereby  acknowledge that you are bound by the
attached Employee  Invention  Assignment and  Confidentiality  Agreement,  dated
September  18, 1995,  that as a result of your  employment  with the Company you
have had access to the Proprietary Information (as defined in such agreement) of
the Company,  that you will hold all such  Proprietary  Information in strictest
confidence and that you may not make any use of such Proprietary  Information on
behalf of any third party.  You further  confirm that you have  delivered to the



Company all  documents  and data of any nature  containing or pertaining to such
Proprietary  Information  and that you have not take with you any such documents
or data or any reproduction thereof.

7. Waiver of Claims. The payments and agreements set forth in this Agreement are
in  full  satisfaction  of any and all  accrued  salary,  PTO  pay,  bonus  pay,
profit-sharing,  termination  benefits or other compensation to which you may be
entitled by virtue of your  employment  with the Company or your  termination of
employment. You hereby release and waive any and all claims you may have against
the  Company  or  any  of  their  officers,  directors,   employees,   managers,
shareholders,   partners,  agents,  attorneys,  subsidiaries,   successors,  and
assigns,  including without limitation claims for any additional compensation or
benefits  arising  out of the  termination  of your  employment,  any  claims of
wrongful  termination,  breach of  contract  or  discrimination  under  state or
federal  law,  and any  claims  you  may  have  based  on age or  under  the Age
Discrimination  in Employment Act or Older Workers Benefit  Protection Act. This
section 7 shall  remain in full  force and  effect  even if there is a breach of
this Agreement by either party.

You hereby expressly waive any benefits of Section 1542 of the Civil Code of the
State of California, or any other state law of similar effect, which provides as
follows:

         " A GENERAL  RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR  DOES
         NOT KNOW OR SUSPECT TO EXIST IN HER FAVOR AT THE TIME OF EXECUTING  THE
         RELEASE,  WHICH  IF  KNOWN BY HER MUST  HAVE  MATERIALLY  AFFECTED  HER
         SETTLEMENT WITH THE DEBTOR."

8. Review of Severance Agreement You acknowledge your understanding that you may
take up to  twenty-one  (21) days to consider  this  Agreement and that you have
been advised to consult with an attorney prior to executing this Agreement.  You
further  acknowledge  that you  understand  that you may revoke  your  agreement
within  seven  (7)  days of  your  execution  of  this  document  and  that  the
consideration to be paid to you pursuant to paragraph 4 above for your agreement
will be paid only at the end of that seven (7) day revocation period.

9.  Nondisparagement.  You agree that you will not  disparage the Company or its
products, services, agents,  representatives,  directors, officers, shareholder,
attorneys, employees, vendors, affiliates,  successors or assigns, or any person
acting by,  through,  under or in concert with any of them,  with any written or
oral statement.

10.  Legal and  Equitable  Remedies.  You agree that the Company  shall have the
right  to  enforce  this  Agreement  and any of its  provisions  by  injunction,
specific  performance or other equitable  relief without  prejudice to any other
rights or  remedies  the Company may have at law or in equity for breach of this
Agreement.

11. Attorney's Fees. If any action at law or in equity is brought to enforce the
terms of the Agreement,  the  prevailing  party shall be entitled to recover its
reasonable attorneys' fees, costs and expenses from the other party, in addition
to any other relief to which such prevailing party may be entitled.

12. Confidentiality.  The contents,  terms and conditions of the Agreement shall
be kept  confidential by you and shall not be disclosed except to your attorneys
or  pursuant  to subpoena  or court  order.  Any breach of this  confidentiality
provision shall be deemed a material breach of this Agreement.

13. No Admission of Liability. This Agreements is not and shall not be construed
or  contended  by you to be an  admission  or  evidence  of  any  wrongdoing  or
liability on the part of the Company,  its  representatives,  heirs,  executors,
attorneys,  agents,  partners,  officers,  shareholders,  directors,  employees,
subsidiaries, affiliates, divisions, successors or assigns. This Agreement shall
be afforded the maximum  protection  allowable  under  California  Evidence Code
Section 1152 and/or any other state or Federal provisions of similar effect.



14. Entire  Agreement.  This Agreement  constitutes the entire agreement between
you and the Company with respect to the subject  material  hereof and supersedes
all prior negotiations and agreements, whether written or oral, relating to such
subject  matter.  You  acknowledge  that  neither  the Company nor its agents or
attorneys, have made any promise,  representation or warranty whatsoever, either
express or implied,  written or oral,  which is not contained in this  Agreement
for the purpose of inducing you to execute the  Agreement,  and you  acknowledge
that you have  executed  this  Agreement  in reliance  only upon such  promises,
representations and warranties as are contained herein.

15. Modification. It is expressly agreed that this Agreement may not be altered,
amended, modified, or otherwise changed in any respect except by another written
agreement  that  specifically  refers  to  this  Agreement,   duly  executed  by
authorized representatives of each the parties hereto.

If this  letter  accurately  sets  forth the terms of your  separation  from the
Company,  please  sign  the  attached  copy  and  return  it to the  undersigned
postmarked no later than April 6, 1998.

Very truly yours,



/s/ Vinita Gupta

Vinita Gupta

Chairman and Chief Executive Officer


READ, UNDERSTOOD, AND AGREED




/s/ Jack A. Musgrove               3/26/98
- -----------------------          ------------
Signature                         Date


 Jack A. Musgrove
- ------------------
Print Name






March 25, 1998



Mr. Jack Musgrove
33206 Falcon Drive
Fremont, CA 94555

Re:  Addendum to Separation Term Letter Dated March 16, 1998

Dear Jack,

Item number 2 was incorrect in our letter,  dated March 16, 1998,  regarding the
status of your stock options.  As the attached document  indicates,  you do have
5,208 shares vested in stock option grant  #000627.  In addition to the benefits
listed  under item number 4, we will  provide you $5,000 in lieu of an extra six
months of vesting on stock option grant #000627.

You will receive this benefit, in addition to the benefits listed in item number
4, as  consideration  for the release set forth in the letter.  If you decide to
execute the March 16, 1998 letter you will receive the  additional  $5,000 seven
days following the date you sign the agreement.

If you have any questions regarding the terms stated above please call.

Regards,



/s/ Dianne Mastilock

Dianne Mastilock
Vice President, Human Resources