NETRIX CORPORATION

                          EXECUTIVE RETENTION AGREEMENT


      THIS EXECUTIVE RETENTION  AGREEMENT by and between Netrix  Corporation,  a
Delaware corporation (the "COMPANY"), and Lynn Chapman (the "EXECUTIVE") is made
as of February 1, 1999 (the "EFFECTIVE DATE").

      WHEREAS,  the  Board  of  Directors  of  the  Company  (the  "BOARD")  has
determined that appropriate steps should be taken to reinforce and encourage the
continued employment and dedication of the Company's key personnel;

      NOW, THEREFORE, as an inducement for and in consideration of the Executive
remaining in its employ, the Company agrees that the Executive shall receive the
severance  benefits  set forth in this  Agreement  in the event the  Executive's
employment  with the Company is  terminated  under the  circumstances  described
below.

      1.    KEY DEFINITIONS.

      As used herein,  the following  terms shall have the following  respective
meanings:

            1.1   "CAUSE" means:

                  (a)  the   Executive's   willful  and  continued   failure  to
substantially perform [his/her] reasonable assigned duties [AS AN OFFICER OF THE
COMPANY] (other than any such failure  resulting from incapacity due to physical
or mental  illness),  which  failure is not cured within 30 days after a written
demand for  substantial  performance is received by the Executive from the Board
of Directors of the Company which  specifically  identifies  the manner in which
the Board of Directors  believes the Executive has not  substantially  performed
the Executive's duties; or

                  (b) the Executive's  willful  engagement in illegal conduct or
gross misconduct which is materially and demonstrably injurious to the Company.

      For  purposes  of  this  Section  1.1,  no  act or  failure  to act by the
Executive  shall be  considered  "willful"  unless it is done,  or omitted to be
done, in bad faith and without  reasonable belief that the Executive's action or
omission was in the best interests of the Company.

            1.2  "DISABILITY"  means the Executive's  absence from the full-time




performance  of the  Executive's  duties with the  Company  for 180  consecutive
calendar days as a result of incapacity due to mental or physical  illness which
is determined  to be total and permanent by a physician  selected by the Company
or its  insurers  and  acceptable  to the  Executive  or the  Executive's  legal
representative.

            1.3 "TERM" means the period  commencing as of the Effective Date and
continuing  in  effect  through  December  31,  2000;  PROVIDED,  however,  that
commencing on January 1, 2001 and each January 1  thereafter,  the Term shall be
automatically  extended for one additional  year unless,  not later than 90 days
prior to the scheduled  expiration of the Term (or any extension  thereof),  the
Company shall have given the Executive  written notice that the Term will not be
extended.

            1.4 "Good Reason" shall mean the  occurrence of any of the following
circumstances without the Executive's written consent, unless such circumstances
are fully  corrected  prior to the Date of  Termination  (as  defined in Article
4.1(a)(i) of this Agreement):

                  (A)  any  reduction  in the  Executive's  annual  compensation
(including  salary and bonuses and commissions based on agreed upon targets then
in  effect)  as in  effect on the date  hereof  or as the same may be  increased
during the term; or

                  (B) any requirement by the Company or of any person in control
of the Company  that the  location at which the  Executive  performs  his or her
principal  duties  for the  Company  be  outside a radius  of 50 miles  from the
location at which such duties were performed  immediately prior to the Effective
Date of this Agreement.

      2. TERM OF AGREEMENT.  This  Agreement,  and all rights and obligations of
the  parties  hereunder,  shall take effect  upon the  Effective  Date and shall
expire  upon the  first to  occur of (a) the  expiration  of the Term or (b) the
fulfillment by the Company of all of its obligations under Sections 4 and 5.2 if
the Executive's employment with the Company terminates during the Term.

      3.    EMPLOYMENT STATUS.

            3.1 NOT AN EMPLOYMENT CONTRACT. The Executive acknowledges that this
Agreement  does not constitute a contract of employment or impose on the Company
any  obligation to retain the  Executive as an employee and that this  Agreement
does not prevent the Executive from terminating employment at any time.

      4.    BENEFITS TO EXECUTIVE.

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            4.1  COMPENSATION.  If the  Executive's  employment with the Company
terminates  during the Term,  the  Executive  shall be entitled to the following
benefits:

                  (a) TERMINATION  WITHOUT CAUSE;  RESIGNATION WITH GOOD REASON.
If the  Executive's  employment  with the Company is  terminated  by the Company
(other  than for  Cause,  Disability  or Death) or if the  Executive  terminates
employment for Good Reason during the Term, then the Executive shall be entitled
to the following benefits:

                        (i)   the Company  shall pay to the Executive in equal
semi-monthly  installments in cash beginning  within 30 days after the effective
date of an employment  termination (the "DATE OF TERMINATION")  the aggregate of
the following amounts:

                              (1)   the  sum  of  (A) the   Executive's   base
salary through the Date of Termination,  (B) the product of (x) the annual bonus
paid or payable  (including  any bonus or portion  thereof which has been earned
but deferred) for the most  recently  completed  fiscal year or the annual bonus
amount  contained in an offer of employment if the Executive was not employed by
the Company in the most recently  completed fiscal year and (y) a fraction,  the
numerator of which is the number of days in the current  fiscal year through the
Date of  Termination,  and the denominator of which is 365 and (C) the amount of
any compensation previously deferred by the Executive (together with any accrued
interest or earnings  thereon) and any accrued vacation pay, in each case to the
extent not  previously  paid (the sum of the amounts  described  in clauses (A),
(B), and (C) shall be hereinafter referred to as the "ACCRUED OBLIGATIONS"); and

                              (2)   an amount  equal to the greater of (a) the
Executive's  annual base salary during the twelve month period prior to the Date
of Termination,  or (b) the product of twelve (12) times the Executive's monthly
salary in effect immediately before the Date of Termination.

                        (ii)  for 12 months after the Date of Termination,  or
such  longer  period as may be provided  by the terms of the  appropriate  plan,
program,  practice or policy,  the Company shall continue to provide benefits to
the  Executive  and the  Executive's  family at least equal to those which would
have  been  provided  to  them  if  the  Executive's  employment  had  not  been
terminated,   in  accordance  with  the  applicable   benefit  plan  or  program
(including,  without limitation, any insurance,  medical, health and accident or
disability plan and any vacation program or policy) (a "BENEFIT PLAN") in effect
on the Date of Termination, or, if more favorable to the Executive and [his/her]
family,  in effect  generally at any time  thereafter with respect to other peer
executives of the Company and its affiliated companies;  PROVIDED, however, that

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if the Executive  becomes  reemployed  with another  employer and is eligible to
receive a particular type of benefits  (e.g.,  health  insurance  benefits) from
such  employer on terms at least as favorable  to the  Executive  and  [his/her]
family as those being provided by the Company,  then the Company shall no longer
be required to provide those particular  benefits to the Executive and [his/her]
family;

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                        (iii) to the extent not  previously  paid or provided,
the Company  shall timely pay or provide to the  Executive  any other amounts or
benefits  required to be paid or provided or which the  Executive is eligible to
receive  following the  Executive's  termination  of employment  under any plan,
program,  policy,  practice,  contract  or  agreement  of the  Company  and  its
affiliated  companies  (such other  amounts and  benefits  shall be  hereinafter
referred to as the "OTHER BENEFITS"); and

                        (iv)  for  purposes  of  (i)  determining  eligibility
(but not the time of  commencement  of  benefits) of the  Executive  for retiree
benefits to which the  Executive  is entitled  and (ii)  determining  vesting OR
EXERCISING  under stock options or awards granted to the Executive  prior to the
Date of  Termination  under the  Company's  employee  stock  option  plans,  the
Executive shall be considered to have remained  employed by the Company until 12
months after the Date of Termination.

                  (b) RESIGNATION WITHOUT GOOD REASON;  TERMINATION FOR DEATH OR
DISABILITY.   If  the  Executive  voluntarily  terminates  WITHOUT  GOOD  REASON
[his/her]  employment  with the  Company  during the Term or if the  Executive's
employment with the Company is terminated by reason of the Executive's  death or
Disability  during the Term,  then the Company  shall (i) pay the  Executive (or
[his/her] estate, if applicable), in a lump sum in cash within 30 days after the
Date of Termination,  the Accrued  Obligations and (ii) timely pay or provide to
the Executive the Other Benefits.

                  (c)  TERMINATION  FOR CAUSE.  If the  Company  terminates  the
Executive's  employment  with the  Company for Cause  during the Term,  then the
Company  shall (i) pay the  Executive,  in a lump sum in cash  within  [30 days]
after the Date of Termination, the sum of (A) the Executive's annual base salary
through  the  Date  of  Termination  and  (B)  the  amount  of any  compensation
previously deferred by the Executive,  in each case to the extent not previously
paid, and (ii) timely pay or provide to the Executive the Other Benefits.

            4.2 MITIGATION.  The Executive shall not be required to mitigate the
amount of any  payment or  benefits  provided  for in this  Section 4 by seeking
other  employment  or  otherwise.   Further,   except  as  provided  in  Section
4.1(a)(ii), the amount of any payment or benefits provided for in this Section 4
shall not be reduced by any compensation  earned by the Executive as a result of
employment by another employer,  by retirement  benefits,  by offset against any
amount claimed to be owed by the Executive to the Company or otherwise.


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      5.    DISPUTES.

            5.1 SETTLEMENT OF DISPUTES; ARBITRATION. All claims by the Executive
for benefits  under this  Agreement  shall be directed to and  determined by the
Board of  Directors  of the Company  and shall be in writing.  Any denial by the
Board of  Directors  of a claim  for  benefits  under  this  Agreement  shall be
delivered to the  Executive in writing and shall set forth the specific  reasons
for the denial and the specific  provisions of this  Agreement  relied upon. The
Board of Directors shall afford a reasonable  opportunity to the Executive for a
review of the  decision  denying a claim.  Any  further  dispute or  controversy
arising under or in connection with this Agreement shall be settled  exclusively
by arbitration in Washington, D.C., in accordance with the rules of the American
Arbitration  Association  then  in  effect.  Judgment  may  be  entered  on  the
arbitrator's award in any court having jurisdiction.

            5.2  EXPENSES.  The Company  agrees to pay as incurred,  to the full
extent permitted by law, all legal, accounting and other fees and expenses which
the  Executive  may  reasonably  incur  as a  result  of any  claim  or  contest
(regardless  of the outcome  thereof) by the  Company,  the  Executive or others
regarding the validity or  enforceability  of, or liability under, any provision
of this Agreement or any guarantee of performance thereof (including as a result
of any contest by the Executive  regarding the amount of any payment or benefits
pursuant to this  Agreement),  plus in each case interest on any delayed payment
at the  applicable  Federal rate  provided for in Section  7872(f)(2)(A)  of the
Code.

      6.    SUCCESSORS; NON-COMPETE.

            6.1  SUCCESSOR TO COMPANY.  The Company  shall require any successor
(whether direct or indirect, by purchase, merger, consolidation or otherwise) to
all or substantially  all of the business or assets of the Company  expressly to
assume and agree to perform  this  Agreement to the same extent that the Company
would be required to perform it if no such  succession had taken place.  Failure
of the  Company to obtain an  assumption  of this  Agreement  at or prior to the
effectiveness  of any  succession  shall be a breach of this Agreement and shall
constitute a termination  without cause in accordance with Section 4.1(a) if the
Executive  elects  to  terminate   employment,   except  that  for  purposes  of
implementing  the  foregoing,  the date on which  any  such  succession  becomes
effective  shall be deemed the Date of  Termination.  As used in this Agreement,
"Company"  shall  mean the  Company as defined  above and any  successor  to its
business  or assets as  aforesaid  which  assumes  and  agrees to  perform  this
Agreement, by operation of law or otherwise.

            6.2  SUCCESSOR  TO  EXECUTIVE.  This  Agreement  shall  inure to the


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benefit  of  and  be   enforceable   by  the   Executive's   personal  or  legal
representatives,  executors,  administrators,  successors,  heirs, distributees,
devisees and legatees.  If the Executive should die while any amount would still
be payable to the Executive or [his/her]  family  hereunder if the Executive had
continued to live, all such amounts,  unless otherwise provided herein, shall be
paid in accordance  with the terms of this Agreement to the executors,  personal
representatives or administrators of the Executive's estate.

            6.3   NON-COMPETE.

                  (a)   During the Term the  Executive  will not  directly  or
indirectly:

                        (i)   as    an    individual    proprietor,    partner
stockholder,  officer, employee,  director, joint venturer, investor, lender, or
in any other capacity  whatsoever (other than as the holder of not more than one
percent (1%) of the total outstanding stock of a publicly held company),  engage
in the business of developing,  producing,  marketing or selling products of the
kind or type  developed or being  developed,  produced,  marketed or sold by the
Company while the Executive was employed by the Company; or

                        (ii)  recruit,   solicit  or  induce,  or  attempt  to
induce,  any employee or employees of the Company to terminate their  employment
with, or otherwise cease their relationship with, the Company; or

                        (iii) solicit,  divert or take  away,  or  attempt  to
divert  or to take  away,  the  business  or  patronage  of any of the  clients,
customers or accounts,  or prospective  clients,  customers or accounts,  of the
Company  which  were  contacted,  solicited  or  served by the  Executive  while
employed by the Company.

                  (b) If any restrictions set forth in this Section 6.3 is found
by any court of competent  jurisdiction to be  unenforceable  because it extends
for too long a period of time or over too great a range of  activities or in too
broad a geographic area, it shall be interpreted to extend only over the maximum
period of time,  range of activities  or  geographic  area as to which it may be
enforceable.

                  (c)  The  restrictions  contained  in  this  Section  6.3  are
necessary for the protection of the business and goodwill of the Company and are
considered  by the Executive to be  reasonable  for such purpose.  The Executive
agrees that any breach of this  Section  6.3 will cause the Company  substantial
and  irrevocable  damage  and  therefore,  in the event of any such  breach,  in
addition to such other remedies  which may be available,  the Company shall have
the right to seek specific performance and injunctive relief.


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      7.  NOTICE.  All  notices,  instructions  and other  communications  given
hereunder  or in  connection  herewith  shall be in  writing.  Any such  notice,
instruction or communication shall be sent either (i) by registered or certified
mail, return receipt requested, postage prepaid, or (ii) prepaid via a reputable
nationwide  overnight courier service, in each case addressed to the Company, at
13595 Dulles Technology Drive, Herndon,  Virginia 20171, and to the Executive at
43454 Thistlewood  Court,  Ashburn,  Virginia 22011 (or to such other address as
either the Company or the Executive  may have  furnished to the other in writing
in accordance herewith). Any such notice,  instruction or communication shall be
deemed to have been  delivered five business days after it is sent by registered
or certified mail, return receipt  requested,  postage prepaid,  or one business
day  after it is sent via a  reputable  nationwide  overnight  courier  service.
Either party may give any notice,  instruction or other communication  hereunder
using any other means,  but no such notice,  instruction or other  communication
shall be deemed to have been duly  delivered  unless  and until it  actually  is
received by the party for whom it is intended.

      8.    MISCELLANEOUS.

            8.1 EMPLOYMENT BY SUBSIDIARY.  For purposes of this  Agreement,  the
Executive's  employment  with the Company shall not be deemed to have terminated
solely as a result of the Executive  continuing to be employed by a wholly-owned
subsidiary of the Company.

            8.2  SEVERABILITY.   The  invalidity  or   unenforceability  of  any
provision of this Agreement shall not affect the validity or  enforceability  of
any other  provision  of this  Agreement,  which shall  remain in full force and
effect.

            8.3 INJUNCTIVE  RELIEF. The Company and the Executive agree that any
breach of this  Agreement  by the  Company  is  likely  to cause  the  Executive
substantial  and  irrevocable  damage  and  therefore,  in the event of any such
breach, in addition to such other remedies which may be available, the Executive
shall have the right to specific performance and injunctive relief.

            8.4   GOVERNING  LAW. The validity,  interpretation,  construction
and  performance of this  Agreement  shall be governed by the internal laws of
the Commonwealth of Virginia, without regard to conflicts of law principles.

            8.5  WAIVERS.  No waiver by the  Executive at any time of any breach
of, or compliance  with,  any provision of this Agreement to be performed by the
Company  shall  be  deemed  a  waiver  of that  or any  other  provision  at any
subsequent time.

            8.6  COUNTERPARTS.  This Agreement may be executed in  counterparts,


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each of which shall be deemed to be an original but both of which together shall
constitute one and the same instrument.

            8.7   TAX WITHHOLDING.  Any payments  provided for hereunder shall
be paid net of any applicable tax  withholding  required under federal,  state
or local law.

            8.8 ENTIRE AGREEMENT. This Agreement sets forth the entire agreement
of the parties  hereto in respect of the  subject  matter  contained  herein and
supersedes   all   prior   agreements,   promises,   covenants,    arrangements,
communications,  representations or warranties,  whether oral or written, by any
officer, employee or representative of any party hereto; and any prior agreement
of the  parties  hereto in respect of the  subject  matter  contained  herein is
hereby terminated and cancelled.

            8.9   AMENDMENTS.  This  Agreement may be amended or modified only
by a written instrument executed by both the Company and the Executive.

            IN WITNESS WHEREOF,  the parties hereto have executed this Agreement
as of the day and year first set forth above.


                                    NETRIX CORPORATION


                                    By:-----------------------------------------

                                    Title:--------------------------------------


                                    --------------------------------------------
                                    [SIGNATURE]


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