Document:

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                                                                    EXHIBIT 10.6

                           INDEMNIFICATION AGREEMENT
                           -------------------------

     This Indemnification Agreement (the "Agreement") is made as of __________,
                                          ---------
by and between Sunrise Telecom Incorporated, a Delaware corporation (the
"Company"), and _________________ (the "Indemnitee").
 -------                                ----------

                                   RECITALS
                                   --------

     The Company and Indemnitee recognize the increasing difficulty in obtaining
liability insurance for directors, officers and key employees, the significant
increases in the cost of such insurance and the general reductions in the
coverage of such insurance.  The Company and Indemnitee further recognize the
substantial increase in corporate litigation in general, subjecting directors,
officers and key employees to expensive litigation risks at the same time as the
availability and coverage of liability insurance has been severely limited.
Indemnitee does not regard the current protection available as adequate under
the present circumstances, and Indemnitee and agents of the Company may not be
willing to continue to serve as agents of the Company without additional
protection.  The Company desires to attract and retain the services of highly
qualified individuals, such as Indemnitee, and to indemnify its directors,
officers and key employees so as to provide them with the maximum protection
permitted by law.

                                   AGREEMENT
                                   ---------

     In consideration of the mutual promises made in this Agreement, and for
other good and valuable consideration, receipt of which is hereby acknowledged,
the Company and Indemnitee hereby agree as follows:

     1.   Indemnification.
          ---------------

          (a) Third Party Proceedings.  The Company shall indemnify Indemnitee
              -----------------------
if Indemnitee is or was a party or is threatened to be made a party to any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative (other than an action by or in the
right of the Company) by reason of the fact that Indemnitee is or was a
director, officer, employee or agent of the Company, or any subsidiary of the
Company, by reason of any action or inaction on the part of Indemnitee while an
officer or director or by reason of the fact that Indemnitee is or was serving
at the request of the Company as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise,
against expenses (including attorneys' fees), judgments, fines and amounts paid
in settlement (if such settlement is approved in advance by the Company, which
approval shall not be unreasonably withheld) actually and reasonably incurred by
Indemnitee in connection with such action, suit or proceeding if Indemnitee
acted in good faith and in a manner Indemnitee reasonably believed to be in or
not opposed to the best interests of the Company, and, with respect to any
criminal action or proceeding, had no reasonable cause to believe Indemnitee's
conduct was unlawful.  The termination of any action, suit or proceeding by
judgment, order, settlement, conviction, or upon a plea of nolo contendere or
its equivalent, shall not, of itself, create a presumption that Indemnitee did
not act in good faith and in a manner which Indemnitee
<PAGE>

reasonably believed to be in or not opposed to the best interests of the
Company, or, with respect to any criminal action or proceeding, that Indemnitee
had reasonable cause to believe that Indemnitee's conduct was unlawful.

          (b) Proceedings By or in the Right of the Company.  The Company shall
              ---------------------------------------------
indemnify Indemnitee if Indemnitee was or is a party or is threatened to be made
a party to any threatened, pending or completed action or proceeding by or in
the right of the Company or any subsidiary of the Company to procure a judgment
in its favor by reason of the fact that Indemnitee is or was a director,
officer, employee or agent of the Company, or any subsidiary of the Company, by
reason of any action or inaction on the part of Indemnitee while an officer or
director or by reason of the fact that Indemnitee is or was serving at the
request of the Company as a director, officer, employee or agent of another
corporation, partnership, joint venture, trust or other enterprise, against
expenses (including attorneys' fees) and, to the fullest extent permitted by
law, amounts paid in settlement (if such settlement is approved in advance by
the Company, which approval shall not be unreasonably withheld), in each case to
the extent actually and reasonably incurred by Indemnitee in connection with the
defense or settlement of such action or suit if Indemnitee acted in good faith
and in a manner Indemnitee reasonably believed to be in or not opposed to the
best interests of the Company and its stockholders, except that no
indemnification shall be made in respect of any claim, issue or matter as to
which Indemnitee shall have been finally adjudicated by court order or judgment
to be liable to the Company in the performance of Indemnitee's duty to the
Company and its stockholders unless and only to the extent that the court in
which such action or proceeding is or was pending shall determine upon
application that, in view of all the circumstances of the case, Indemnitee is
fairly and reasonably entitled to indemnity for such expenses which such court
shall deem proper.

          (c) Mandatory Payment of Expenses.  To the extent that Indemnitee has
              -----------------------------
been successful on the merits or otherwise in defense of any action, suit or
proceeding referred to in Section 1(a) or Section 1(b) or the defense of any
claim, issue or matter therein, Indemnitee shall be indemnified against expenses
(including attorneys' fees) actually and reasonably incurred by Indemnitee in
connection therewith.

     2.   No Employment Rights.  Nothing contained in this Agreement is intended
          --------------------
to create in Indemnitee any right to continued employment.

     3.   Expenses; Indemnification Procedure.
          -----------------------------------

          (a) Advancement of Expenses.  The Company shall advance all expenses
              -----------------------
incurred by Indemnitee in connection with the investigation, defense, settlement
or appeal of any civil or criminal action, suit or proceeding referred to in
Section l(a) or Section 1(b) hereof (including amounts actually paid in
settlement of any such action, suit or proceeding).  Indemnitee hereby
undertakes to repay such amounts advanced only if, and to the extent that, it
shall ultimately be determined that Indemnitee is not entitled to be indemnified
by the Company as authorized hereby.

          (b) Notice/Cooperation by Indemnitee.  Indemnitee shall, as a
              --------------------------------
condition precedent to his or her right to be indemnified under this Agreement,
give the Company notice in

                                      -2-
<PAGE>

writing as soon as practicable of any claim made against Indemnitee for which
indemnification will or could be sought under this Agreement. Notice to the
Company shall be directed to the Chief Executive Officer of the Company and
shall be given in accordance with the provisions of Section 12(d) below. In
addition, Indemnitee shall give the Company such information and cooperation as
it may reasonably require and as shall be within Indemnitee's power.

          (c) Procedure.  Any indemnification and advances provided for in
              ---------
Section 1 and this Section 3 shall be made no later than twenty (20) days after
receipt of the written request of Indemnitee.  If a claim under this Agreement,
under any statute, or under any provision of the Company's Certificate of
Incorporation or Bylaws providing for indemnification, is not paid in full by
the Company within twenty (20) days after a written request for payment thereof
has first been received by the Company, Indemnitee may, but need not, at any
time thereafter bring an action against the Company to recover the unpaid amount
of the claim and, subject to Section 11 of this Agreement, Indemnitee shall also
be entitled to be paid for the expenses (including attorneys' fees) of bringing
such action.  It shall be a defense to any such action (other than an action
brought to enforce a claim for expenses incurred in connection with any action,
suit or proceeding in advance of its final disposition) that Indemnitee has not
met the standards of conduct which make it permissible under applicable law for
the Company to indemnify Indemnitee for the amount claimed, but the burden of
proving such defense shall be on the Company and Indemnitee shall be entitled to
receive interim payments of expenses pursuant to Section 3(a) unless and until
such defense may be finally adjudicated by court order or judgment from which no
further right of appeal exists.  It is the parties' intention that if the
Company contests Indemnitee's right to indemnification, the question of
Indemnitee's right to indemnification shall be for the court to decide, and
neither the failure of the Company (including its Board of Directors, any
committee or subgroup of the Board of Directors, independent legal counsel, or
its stockholders) to have made a determination that indemnification of
Indemnitee is proper in the circumstances because Indemnitee has met the
applicable standard of conduct required by applicable law, nor an actual
determination by the Company (including its Board of Directors, any committee or
subgroup of the Board of Directors, independent legal counsel, or its
stockholders) that Indemnitee has not met such applicable standard of conduct,
shall create a presumption that Indemnitee has or has not met the applicable
standard of conduct.

          (d) Notice to Insurers.  If, at the time of the receipt of a notice of
              ------------------
a claim pursuant to Section 3(b) hereof, the Company has director and officer
liability insurance in effect, the Company shall give prompt notice of the
commencement of such proceeding to the insurers in accordance with the
procedures set forth in the respective policies.  The Company shall thereafter
take all necessary or desirable action to cause such insurers to pay, on behalf
of the Indemnitee, all amounts payable as a result of such proceeding in
accordance with the terms of such policies.

          (e) Selection of Counsel.  In the event the Company shall be obligated
              --------------------
under Section 3(a) hereof to pay the expenses of any proceeding against
Indemnitee, the Company, if appropriate, shall be entitled to assume the defense
of such proceeding, with counsel approved by Indemnitee, upon the delivery to
Indemnitee of written notice of its election so to do. After delivery of such
notice, approval of such counsel by Indemnitee and the retention of such counsel

                                      -3-

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by the Company, the Company will not be liable to Indemnitee under this
Agreement for any fees of counsel subsequently incurred by Indemnitee with
respect to the same proceeding, provided that (i) Indemnitee shall have the
right to employ counsel in any such proceeding at Indemnitee's expense; and (ii)
if (A) the employment of counsel by Indemnitee has been previously authorized by
the Company, (B) Indemnitee shall have reasonably concluded that there may be a
conflict of interest between the Company and Indemnitee in the conduct of any
such defense or (C) the Company shall not, in fact, have employed counsel to
assume the defense of such proceeding, then the fees and expenses of
Indemnitee's counsel shall be at the expense of the Company.

     4.   Additional Indemnification Rights; Nonexclusivity.
          -------------------------------------------------

          (a) Scope.  Notwithstanding any other provision of this Agreement, the
              -----
Company hereby agrees to indemnify the Indemnitee to the fullest extent
permitted by law, notwithstanding that such indemnification is not specifically
authorized by the other provisions of this Agreement, the Company's Certificate
of Incorporation, the Company's Bylaws or by statute.  In the event of any
change, after the date of this Agreement, in any applicable law, statute, or
rule which expands the right of a Delaware corporation to indemnify a member of
its board of directors or an officer, such changes shall be deemed to be within
the purview of Indemnitee's rights and the Company's obligations under this
Agreement.  In the event of any change in any applicable law, statute or rule
which narrows the right of a Delaware corporation to indemnify a member of its
board of directors or an officer, such changes, to the extent not otherwise
required by such law, statute or rule to be applied to this Agreement shall have
no effect on this Agreement or the parties' rights and obligations hereunder.

          (b) Nonexclusivity.  The indemnification provided by this Agreement
              --------------
shall not be deemed exclusive of any rights to which Indemnitee may be entitled
under the Company's Certificate of Incorporation, its Bylaws, any agreement, any
vote of stockholders or disinterested members of the Company's Board of
Directors, the General Corporation Law of the State of Delaware, or otherwise,
both as to action in Indemnitee's official capacity and as to action in another
capacity while holding such office.  The indemnification provided under this
Agreement shall continue as to Indemnitee for any action taken or not taken
while serving in an indemnified capacity even though he or she may have ceased
to serve in any such capacity at the time of any action, suit or other covered
proceeding.

     5.   Partial Indemnification. If Indemnitee is entitled under any provision
          -----------------------
of this Agreement to indemnification by the Company for some or a portion of the
expenses, judgments, fines or penalties actually or reasonably incurred in the
investigation, defense, appeal or settlement of any civil or criminal action,
suit or proceeding, but not, however, for the total amount thereof, the Company
shall nevertheless indemnify Indemnitee for the portion of such expenses,
judgments, fines or penalties to which Indemnitee is entitled.

     6.   Mutual Acknowledgment.  Both the Company and Indemnitee acknowledge
          ---------------------
that in certain instances, Federal law or public policy may override applicable
state law and prohibit the Company from indemnifying its directors and officers
under this Agreement or otherwise.

                                      -4-
<PAGE>

For example, the Company and Indemnitee acknowledge that the Securities and
Exchange Commission (the "SEC") has taken the position that indemnification is
                          ---
not permissible for liabilities arising under certain federal securities laws,
and federal legislation prohibits indemnification for certain ERISA violations.
Indemnitee understands and acknowledges that the Company has undertaken or may
be required in the future to undertake with the SEC to submit the question of
indemnification to a court in certain circumstances for a determination of the
Company's right under public policy to indemnify Indemnitee.

     7.  Officer and Director Liability Insurance.  The Company shall, from time
         ----------------------------------------
to time, make the good faith determination whether or not it is practicable for
the Company to obtain and maintain a policy or policies of insurance with
reputable insurance companies providing the officers and directors of the
Company with coverage for losses from wrongful acts, or to ensure the Company's
performance of its indemnification obligations under this Agreement. Among other
considerations, the Company will weigh the costs of obtaining such insurance
coverage against the protection afforded by such coverage.  In all policies of
director and officer liability insurance, Indemnitee shall be named as an
insured in such a manner as to provide Indemnitee the same rights and benefits
as are accorded to the most favorably insured of the Company's directors, if
Indemnitee is a director; or of the Company's officers, if Indemnitee is not a
director of the Company but is an officer; or of the Company's key employees, if
Indemnitee is not an officer or director but is a key employee.  Notwithstanding
the foregoing, the Company shall have no obligation to obtain or maintain such
insurance if the Company determines in good faith that such insurance is not
reasonably available, if the premium costs for such insurance are
disproportionate to the amount of coverage provided, if the coverage provided by
such insurance is limited by exclusions so as to provide an insufficient
benefit, or if Indemnitee is covered by similar insurance maintained by a parent
or subsidiary of the Company.

     8.  Severability.  Nothing in this Agreement is intended to require or
         ------------
shall be construed as requiring the Company to do or fail to do any act in
violation of applicable law.  The Company's inability, pursuant to court order,
to perform its obligations under this Agreement shall not constitute a breach of
this Agreement.  The provisions of this Agreement shall be severable as provided
in this Section 8.  If this Agreement or any portion hereof shall be invalidated
on any ground by any court of competent jurisdiction, then the Company shall
nevertheless indemnify Indemnitee to the full extent permitted by any applicable
portion of this Agreement that shall not have been invalidated, and the balance
of this Agreement not so invalidated shall be enforceable in accordance with its
terms.

     9.  Exceptions.  Any other provision herein to the contrary
         ----------
notwithstanding, the Company shall not be obligated pursuant to the terms of
this Agreement:

         (a) Claims Initiated by Indemnitee.  To indemnify or advance expenses
             ------------------------------
to Indemnitee with respect to proceedings or claims initiated or brought
voluntarily by Indemnitee and not by way of defense, except with respect to
proceedings brought to establish or enforce a right to indemnification under
this Agreement or any other statute or law or otherwise as required under
Section 145 of the Delaware General Corporation Law, but such indemnification or

                                      -5-
<PAGE>

advancement of expenses may be provided by the Company in specific cases if the
Board of Directors finds it to be appropriate;

          (b) Lack of Good Faith.  To indemnify Indemnitee for any expenses
              ------------------
incurred by Indemnitee with respect to any proceeding instituted by Indemnitee
to enforce or interpret this Agreement, if a court of competent jurisdiction
determines that each of the material assertions made by Indemnitee in such
proceeding was not made in good faith or was frivolous;

          (c) Insured Claims.  To indemnify Indemnitee for expenses or
              --------------
liabilities of any type whatsoever (including, but not limited to, judgments,
fines, ERISA excise taxes or penalties, and amounts paid in settlement) to the
extent such expenses or liabilities have been paid directly to Indemnitee by an
insurance carrier under a policy of officers' and directors' liability insurance
maintained by the Company; or

          (d) Claims under Section 16(b).  To indemnify Indemnitee for expenses
              --------------------------
or the payment of profits arising from the purchase and sale by Indemnitee of
securities in violation of Section 16(b) of the Securities Exchange Act of 1934,
as amended, or any similar successor statute.

     10.  Construction of Certain Phrases.
          -------------------------------

          (a) For purposes of this Agreement, references to the "Company" shall
                                                                 -------
include, in addition to the resulting corporation, any constituent corporation
(including any constituent of a constituent) absorbed in a consolidation or
merger which, if its separate existence had continued, would have had power and
authority to indemnify its directors, officers, and employees or agents, so that
if Indemnitee is or was a director, officer, employee or agent of such
constituent corporation, or is or was serving at the request of such constituent
corporation as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise, Indemnitee shall stand in
the same position under the provisions of this Agreement with respect to the
resulting or surviving corporation as Indemnitee would have with respect to such
constituent corporation if its separate existence had continued.

          (b) For purposes of this Agreement, references to "other enterprises"
                                                             -----------------
shall include employee benefit plans; references to "fines" shall include any
                                                     -----
excise taxes assessed on Indemnitee with respect to an employee benefit plan;
and references to "serving at the request of the Company" shall include any
                   -------------------------------------
service as a director, officer, employee or agent of the Company which imposes
duties on, or involves services by, such director, officer, employee or agent
with respect to an employee benefit plan, its participants, or beneficiaries;
and if Indemnitee acted in good faith and in a manner Indemnitee reasonably
believed to be in the interest of the participants and beneficiaries of an
employee benefit plan, Indemnitee shall be deemed to have acted in a manner "not
                                                                             ---
opposed to the best interests of the Company" as referred to in this Agreement.
--------------------------------------------

     11.  Attorneys' Fees.  In the event that any action is instituted by
          ---------------
Indemnitee under this Agreement to enforce or interpret any of the terms hereof,
Indemnitee shall be entitled to be paid all court costs and expenses, including
reasonable attorneys' fees, incurred by Indemnitee

                                      -6-
<PAGE>

with respect to such action, unless as a part of such action, the court of
competent jurisdiction determines that each of the material assertions made by
Indemnitee as a basis for such action were not made in good faith or were
frivolous. In the event of an action instituted by or in the name of the Company
under this Agreement or to enforce or interpret any of the terms of this
Agreement, Indemnitee shall be entitled to be paid all court costs and expenses,
including attorneys' fees, incurred by Indemnitee in defense of such action
(including with respect to Indemnitee's counterclaims and cross-claims made in
such action), unless as a part of such action the court determines that each of
Indemnitee's material defenses to such action were made in bad faith or were
frivolous.

     12.  Miscellaneous.
          -------------

          (a) Governing Law.  This Agreement and all acts and transactions
              -------------
pursuant hereto and the rights and obligations of the parties hereto shall be
governed, construed and interpreted in accordance with the laws of the State of
Delaware, without giving effect to principles of conflict of law.

          (b) Entire Agreement; Enforcement of Rights.  This Agreement sets
              ---------------------------------------
forth the entire agreement and understanding of the parties relating to the
subject matter herein and merges all prior discussions between them.  No
modification of or amendment to this Agreement, nor any waiver of any rights
under this Agreement, shall be effective unless in writing signed by the parties
to this Agreement.  The failure by either party to enforce any rights under this
Agreement shall not be construed as a waiver of any rights of such party.

          (c) Construction.  This Agreement is the result of negotiations
              ------------
between and has been reviewed by each of the parties hereto and their respective
counsel, if any;  accordingly, this Agreement shall be deemed to be the product
of all of the parties hereto, and no ambiguity shall be construed in favor of or
against any one of the parties hereto.

          (d) Notices.  Any notice, demand or request required or permitted to
              -------
be given under this Agreement shall be in writing and shall be deemed sufficient
when delivered personally or sent by telegram or fax, or forty-eight (48) hours
after being deposited in the U.S. mail, as certified or registered mail, with
postage prepaid, and addressed to the party to be notified at such party's
address as set forth below or as subsequently modified by written notice.

          (e) Counterparts.  This Agreement may be executed in two or more
              ------------
counterparts, each of which shall be deemed an original and all of which
together shall constitute one instrument.

          (f) Successors and Assigns.  This Agreement shall be binding upon the
              ----------------------
Company and its successors and assigns, and inure to the benefit of Indemnitee
and Indemnitee's heirs, legal representatives and assigns.

          (g) Subrogation.  In the event of payment under this Agreement, the
              -----------
Company shall be subrogated to the extent of such payment to all of the rights
of recovery of

                                      -7-
<PAGE>

Indemnitee, who shall execute all documents required and shall do all acts that
may be necessary to secure such rights and to enable the Company to effectively
bring suit to enforce such rights.

                           [Signature Page Follows]

                                      -8-
<PAGE>

     The parties hereto have executed this Agreement as of the day and year set
forth on the first page of this Agreement.

                                           SUNRISE TELECOM INCORPORATED

                                           By:    ______________________________

                                           Title: ______________________________

                                           Address: 22 Great Oaks Boulevard
                                                    San Jose, California 95119

AGREED TO AND ACCEPTED:

((IndemniteeName))

__________________________________
(Signature)

Address:

                                      -9-<PAGE>

                                                                   EXHIBIT 10.11

                         TRUST UNDER ALTAVISTA COMPANY
                          DEFERRED COMPENSATION PLAN

     This Agreement (the "Trust Agreement") made this ____ day of March, 2000,
by and between AltaVista Company (the "Company") and Eastern Bank and Trust
Company (the "Trustee");

     WHEREAS, the Company has adopted the AltaVista Company Deferred
Compensation Plan (the "Plan");

     WHEREAS, the Company has incurred or expects to incur liability under the
terms of such Plan with respect to the individuals participating in such Plan
(the "Participants");

     WHEREAS, the Company wishes to establish a trust (hereinafter called the
"Trust") and to contribute to the Trust assets that shall be held therein,
subject to the claims of the Company's creditors in the event of the Company's
Insolvency, as herein defined, until paid to Plan Participants (and their
beneficiaries) in such manner and at such times as specified in the Plan;

     WHEREAS, it is the intention of the parties that this Trust shall
constitute an unfunded arrangement and shall not affect the status of the Plan
as an unfunded plan maintained for the purpose of providing deferred
compensation for a select group of management or highly compensated employees
for purposes of Title I of the Employee Retirement Income Security Act of 1974;

     WHEREAS, it is the intention of the Company to make contributions to the
Trust to provide a source of funds to assist it in meeting its liabilities under
the Plan;
<PAGE>

     NOW, THEREFORE, the parties do hereby establish the Trust and agree that
the Trust shall be comprised, held and disposed of as follows:

     Section 1.  Establishment of Trust.  The Company hereby deposits with
                 ----------------------
Trustee in trust Ten Dollars ($10) which shall become the principal of the Trust
to be held, administered and disposed of by Trustee as provided in this Trust
Agreement.

                 (a) The Trust hereby established shall be irrevocable.

                 (b) The Trust is intended to be a grantor trust, of which the
Company is the grantor, within the meaning of subpart E, part I, subchapter J,
chapter 1, subtitle A of the Internal Revenue Code of 1986, as amended, and
shall be construed accordingly.

                 (c) The principal of the Trust, and any earnings thereon, shall
be held separate and apart from other funds of the Company and shall be used
exclusively for the uses and purposes of Plan Participants and general creditors
as herein set forth. Plan Participants (and their beneficiaries) shall have no
preferred claim on, or any beneficial ownership interest in, any assets of the
Trust. Any rights created under the Plan and this Trust Agreement shall be mere
unsecured contractual rights of Plan Participants (and their beneficiaries)
against the Company. Any assets held by the Trust will be subject to the claims
of the Company's general creditors under federal and state law in the event of
Insolvency, as defined in Section 3(a) herein.

                 (d) The Company, in its sole discretion, may at any time, or
from time to time, make additional deposits of cash or other property in trust
with Trustee to augment the principal to be held, administered and disposed of
by Trustee as provided in this Trust Agreement. Neither Trustee nor any Plan
Participant (or beneficiary) shall have any right to compel such additional
deposits.

     Section 2.  Payments to Plan Participants and Their Beneficiaries.
                 -----------------------------------------------------

                 (a) The Company shall deliver to Trustee a schedule (the
"Payment Schedule") that indicates the amounts payable in respect of each Plan
Participant (and his or her beneficiaries), that provides a formula or other
instructions acceptable to Trustee for determining the amounts so payable, the
form in which such amount is to be paid (as provided for or available under the
Plan), and the time of commencement for payment of such amounts. Except as
otherwise provided herein, Trustee shall make payments to the Plan Participants
(and their beneficiaries) in accordance with such Payment Schedule. The Trustee
shall make provision for the reporting and withholding of any federal, state or
local taxes that may be required to be withheld with respect to the payment of
benefits pursuant to the terms of the Plan and shall pay amounts withheld to the
appropriate taxing authorities or determine that such amounts have been
reported, withheld and paid by the Company.
<PAGE>

                 (b) The entitlement of a Plan Participant (or his or her
beneficiaries) to benefits under the Plan shall be determined by the Company or
such party as it shall designate under the Plan, and any claim for such benefits
shall be considered and reviewed under the procedures set out in the Plan.

                 (c) The Company may make payment of benefits directly to Plan
Participants (or their beneficiaries) as they become due under the terms of the
Plan.  The Company shall notify Trustee of its decision to make payment of
benefits directly prior to the time amounts are payable to Participants (or
their beneficiaries).  In addition, if the principal of any Trust, and any
earnings thereon, are not sufficient to make payments of benefits in accordance
with the terms of the Plan, the Company shall make the balance of each such
payment as it falls due.  Trustee shall notify the Company where principal and
earnings are not sufficient.  Notwithstanding any other provision of this Trust
Agreement, in the event that the Company determines in good faith that the
assets of the Trust are in excess of the amount needed to pay benefits in
accordance with the terms of the Plan, the Company may direct the Trustee to
refund such excess to the Company.

     Section 3.  Trustee Responsibility Regarding Payments to Trust Beneficiary
                 --------------------------------------------------------------
When Company Is Insolvent.
-------------------------

                 (a) Trustee shall cease payment of benefits to a Plan
Participant (and his or her beneficiaries) if the Company is Insolvent. The
Company shall be considered "Insolvent" for purposes of this Trust Agreement if
(i) the Company is unable to pay its debts as they become due or (ii) the
Company is subject to a pending proceeding as a debtor under the United States
Bankruptcy Code.

                 (b) At all times during the continuance of this Trust, as
provided in Section 1(e) hereof, the principal and income of the Trust shall be
subject to claims of general creditors of the Company under federal and state
law as set forth below.

                     (i)  The Board of Directors and the Chief Executive Officer
of the Company shall have the duty to inform Trustee in writing of the Company's
Insolvency. If a person claiming to be a creditor of the Company alleges in
writing to Trustee that the Company has become Insolvent, Trustee shall
determine whether the Company is Insolvent and, pending such determination,
Trustee shall discontinue payment of benefits to Plan Participants (or his or
her beneficiaries).

                     (ii) Unless Trustee has actual knowledge of the Company's
Insolvency, or has received notice from the Company or a person claiming to be a
creditor alleging that the Company is Insolvent, Trustee shall have no duty to
inquire whether the Company is Insolvent. Trustee may in all events rely on such
evidence concerning the Company's solvency as may be furnished to Trustee and
that provides Trustee with a reasonable basis for making a determination
concerning the Company's solvency.

                                       3
<PAGE>

                      (iii) If at any time Trustee has determined that the
Company is Insolvent, Trustee shall discontinue payments to Plan Participants
(or their beneficiaries) and shall hold the assets of the Trust for the benefit
of the Company's general creditors. Nothing in this Trust Agreement shall in any
way diminish any rights of Plan Participants (or their beneficiaries) to pursue
their rights as general creditors of the Company with respect to benefits due
under the Plan or otherwise.

                      (iv)  Trustee shall resume the payment of benefits to Plan
Participants (or their beneficiaries) in accordance with Section 2 of this Trust
Agreement only after Trustee has determined that the Company is not Insolvent
(or is no longer Insolvent).

                 (d)  Provided that there are sufficient assets, if Trustee
discontinues the payment of benefits from the Trust pursuant to Section 3(b)
hereof and subsequently resumes such payments, the first payment following such
discontinuance shall include the aggregate amount of all payments due to Plan
Participants (or their beneficiaries) under the terms of the Plan for the period
of such discontinuance, less the aggregate amount of any payments made to Plan
Participants (or their beneficiaries) by the Company in lieu of the payments
provided for hereunder during any such period of discontinuance.

     Section 4.  Payments to the Company.  Except as provided in Sections 2(c)
                 -----------------------
and 3 hereof, the Company shall have no right or power to direct Trustee to
return to the Company or to divert to others any of the Trust assets before all
payment of benefits have been made to Plan Participants (and their
beneficiaries) pursuant to the terms of the Plan.

     Section 5.  Investment Authority.  Trustee shall invest the assets held
                 --------------------
hereunder in a manner intended to assist the Company in meeting its liabilities
under the Plan even if that does not maximize the investment return of the
assets.  In no event may Trustee invest in securities (including stock or rights
to acquire stock) or obligations issued by the Company, other than a de minimis
amount held in common investment vehicles in which Trustee invests.  All rights
associated with assets of the Trust shall be exercised by Trustee or the person
designated by Trustee, and shall in no event be exercisable by or rest with Plan
Participants.

     Section 6.  Disposition of Income.  During the term of this Trust, all
                 ---------------------
income received by the Trust, net of expenses and taxes, shall be accumulated
and reinvested.

                                       4
<PAGE>

     Section 7.  Accounting by Trustee.  Trustee shall keep accurate and
                 ---------------------
detailed records of all investments, receipts, disbursements, and all other
transactions required to be made, including such specific records as shall be
agreed upon in writing between the Company and Trustee.  Within ninety (90) days
following the close of each calendar year and within ninety (90) days after the
removal or resignation of Trustee, Trustee shall deliver to the Company a
written account of its administration of the Trust during such year or during
the period from the close of the last preceding year to the date of such removal
or resignation, setting forth all investments, receipts, disbursements and other
transactions effected by it, including a description of all securities and
investments purchased and sold with the cost or net proceeds of such purchases
or sales (accrued interest paid or receivable being shown separately), and
showing all cash, securities and other property held in the Trust at the end of
such year or as of the date of such removal or resignation, as the case may be.

     Section 8.  Responsibility of Trustee.  Trustee shall act with the care,
                 -------------------------
skill, prudence and diligence under the circumstances then prevailing that a
prudent person acting in like capacity and familiar with such matters would use
in the conduct of an enterprise of a like character and with like aims,
provided, however, that Trustee shall incur no liability to any person for any
action taken pursuant to a direction, request or approval given by the Company
which is contemplated by, and in conformity with, the terms of the Plan or this
Trust and is given in writing by the Company.  In the event of a dispute between
the Company and a party, Trustee may apply to a court of competent jurisdiction
to resolve the dispute.

                 (a) If Trustee undertakes or defends any litigation arising in
connection with this Trust with the Company's consent, the Company agrees to
indemnify Trustee against Trustee's costs, expenses and liabilities (including,
without limitation, attorneys' fees and expenses) relating thereto and to be
primarily liable for such payments.  If the Company does not pay such costs,
expenses and liabilities in a reasonably timely manner, Trustee may obtain
payment from the Trust.

                 (b) Trustee may consult with legal counsel (who may also be
counsel for the Company generally) with respect to any of its duties or
obligations hereunder.

                 (c) Trustee may hire agents, accountants, actuaries, investment
advisors, financial consultants or other professionals to assist it in
performing any of its duties or obligations hereunder with the Company's
consent.

                 (d) Trustee shall have, without exclusion, all powers conferred
on Trustees by applicable law, unless expressly provided otherwise herein,
provided, however, that if an insurance policy is held as an asset of the Trust,
Trustee shall have no power to name a beneficiary of the policy other than the
Trust or the Company, to assign the policy (as distinct from conversion of the
policy to a different form) other than to a successor Trustee, or to loan to any
person the proceeds of any borrowing against such policy except for the payment
of benefits.

                  (e) However, notwithstanding the provisions of Section 8(e)
above, Trustee may loan to the Company the proceeds of any borrowing against an
insurance policy held as an asset of the Trust.

                                       5
<PAGE>

                 (f) Notwithstanding any powers granted to Trustee pursuant to
this Trust Agreement or to applicable law, Trustee shall not have any power that
could give this Trust the objective of carrying on a business and dividing the
gains therefrom, within the meaning of section 301.7701-2 of the Procedure and
Administrative Regulations promulgated pursuant to the Internal Revenue Code.

     Section 9.  Compensation and Expenses of Trustee.  The Company shall pay
                 ------------------------------------
all administrative and Trustee's fees and expenses.  If not so paid, the fees
and expenses shall be paid from the Trust.

     Section 10. Resignation and Removal of Trustee.
                 ----------------------------------

                 (a) Trustee may resign at any time by written notice to the
Company, which shall be effective ninety (90) days after receipt of such notice
unless the Company and Trustee agree otherwise.

                 (b) Trustee may be removed by the Company on sixty (60) days
notice or upon shorter notice accepted by Trustee. Upon a Change of Control, as
defined herein, Trustee may not be removed by the Company for two (2) years.

                 (c) Upon resignation or removal of Trustee and appointment of a
successor Trustee, all assets shall subsequently be transferred to the successor
Trustee.  The transfer shall be completed within ninety (90) days after receipt
of notice of resignation, removal or transfer, unless the Company extends the
time limit.

                 (d) If Trustee resigns or is removed, a successor shall be
appointed, in accordance with Section 11 hereof, by the effective date of
resignation or removal under paragraphs (a) or (b) of this section. If no such
appointment has been made, Trustee may apply to a court of competent
jurisdiction for appointment of a successor or for instructions. All expenses of
Trustee in connection with the proceeding shall be allowed as administrative
expenses of the Trust.

     Section 11.  Appointment of Successor.
                  ------------------------

                  (a) If Trustee resigns or is removed in accordance with
Section 10(a) or (b) hereof, the Company may appoint any third party, such as a
bank trust department or other party that may be granted corporate trustee
powers under state law, as a successor to replace Trustee upon resignation or
removal. The appointment shall be effective when accepted in writing by the new
Trustee, who shall have all of the rights and powers of the former Trustee,
including ownership rights in the Trust assets. The former Trustee shall execute
any instrument necessary or reasonably requested by the Company or the successor
Trustee to evidence the transfer.

                  (b) If Trustee resigns or is removed pursuant to the
provisions of Section 10(e) hereof and selects a successor Trustee, Trustee may
appoint any independent third party such as a bank trust department or other
party that may be granted corporate trustee powers under state law. The
appointment of a successor Trustee shall be effective when accepted in writing
by the new Trustee. The new Trustee shall have all the rights and powers of the
former Trustee,

                                       6
<PAGE>

including ownership rights in Trust assets. The former Trustee shall execute any
instrument necessary or reasonably requested by the successor Trustee to
evidence the transfer.

                  (c) The successor Trustee need not examine the records and
acts of any prior Trustee and may retain or dispose of existing Trust assets,
subject to Sections 7 and 8 hereof. The successor Trustee shall not be
responsible for and the Company shall indemnify and defend the successor Trustee
from any claim or liability resulting from any action or inaction of any prior
Trustee or from any other past event, or any condition existing at the time it
becomes successor Trustee.

     Section 12.  Amendment or Termination.
                  ------------------------

                  (a) This Trust Agreement may be amended by a written
instrument executed by Trustee and the Company. Notwithstanding the foregoing,
no such amendment shall conflict with the terms of the Plan or shall make the
Trust revocable.

                  (b) The Trust shall not terminate until the date on which all
Participants (and their beneficiaries) are no longer entitled to benefits
pursuant to the terms of the Plan. Upon termination of the Trust any assets
remaining in the Trust shall be returned to the Company.

     Section 13.  Miscellaneous.
                  -------------

                  (a) Any provision of this Trust Agreement prohibited by law
shall be ineffective to the extent of any such prohibition, without invalidating
the remaining provisions hereof.

                  (b) Benefits payable to Plan Participants (and their
beneficiaries) under this Trust Agreement may not be anticipated, assigned
(either at law or in equity), alienated, pledged, encumbered or subjected to
attachment, garnishment, levy, execution or other legal equitable process.

                  (c) This Trust Agreement shall be governed by and construed in
accordance with the laws of Massachusetts.  For purposes of this Trust, Change
of Control shall mean a change in control of the Company of a nature that would
be required to be reported in response to Item 6(e) of Schedule 14A of
Regulation 14A promulgated under the Securities Exchange Act of 1934, as amended
(the "Exchange Act"), whether or not the Company is in fact required to comply
therewith; provided, that, without limitation, such a change in control for
purposes of this Plan shall be deemed to have occurred if on any future date:

                      (i) any "person" (as such term is used in Sections 13(d)
and 14(d) of the Exchange Act), other than the Company, any trustee or other
fiduciary holding securities under an employee benefit plan of the Company or a
corporation owned, directly or indirectly, by the stockholders of the Company in
substantially the same proportions as their ownership of stock of the Company
for the first time becomes the "beneficial owner" (as defined in the Rule 13d-3
under the Exchange Act), directly or indirectly, of securities of the Company
representing thirty percent (30%) or more of the combined voting power of the
Company then outstanding securities; or

                                       7
<PAGE>

                    (ii)  during any period of twenty-four (24) consecutive
months (not including any period prior to the effective date of the Plan),
individuals who at the beginning of such period constitute the Company's Board
of Directors and any new director (other than a director designated by a person
who has entered into an agreement with the Company to effect a transaction
described in paragraphs (i), (ii) or (iii) of this Section) whose election by
the board of directors of the Company or nomination for election by the
stockholders of the Company was approved by a vote of at least two-thirds (2/3)
of the directors then still in office who either were directors at the beginning
of such period or whose election or nomination for election was previously so
approved, cease for any reason to constitute a majority thereof; or

                    (iii) the stockholders of the Company approve a merger or
consolidation of the Company with any other corporation, other than (A) a merger
or consolidation which would result in the voting securities of the Company
outstanding immediately prior thereto continuing to represent (either by
remaining outstanding or by being converted into voting securities of the
surviving entity) at least fifty percent (50%) of the combined voting securities
of the Company or such surviving entity outstanding immediately after such
merger or consolidation or (B) a merger or consolidation effected to implement a
re-capitalization of the Company (or similar transaction) in which no "person"
(as herein above defined) acquires thirty percent (30%) or more of the combined
voting power of the Company's then outstanding securities; or

                    (iv)  the stockholders of the Company approve a plan of
complete liquidation of the Company or an agreement for the sale or disposition
by the Company of all or substantially all of the Company's assets.

       Section 14.  Effective Date.  The effective date of this Trust Agreement
                    --------------
shall be the effective date of the Company's initial public offering of its
common stock.

                              ALTAVISTA COMPANY

                              By_____________________________________
                                Name:
                                Title:

                              EASTERN BANK AND TRUST COMPANY

                              By_____________________________________
                                Name:
                                Title:

                                       8

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