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Exhibit 10.6

MSA # 4473

[Equinix Logo]

MASTER SERVICE AGREEMENT

        This Master Service Agreement (this "Agreement"), dated as of June 7,
2002 ("MSA Effective Date"), is entered into by and between Equinix Operating
Co., Inc. ("Equinix") and the customer named below ("Customer") and includes the
following exhibits:

a.Exhibit A—Confidentiality Provisions; and

b.Exhibit B—Sublicensing Provisions.

Capitalized terms used but not defined elsewhere in the body of this Agreement
will have the meaning given to such terms in Section 11 or the Policies.

        1.    License and Core Services.    

        a.    Subject to the terms and conditions of this Agreement and the
Orders, in consideration for the non-recurring charges and recurring charges for
the Licensed Spaces set forth in the Orders, Equinix grants Customer a license
("License") to use the Licensed Spaces during the Term as set forth herein.

        b.    At no additional charge, Equinix will provide the Core Services,
each of which are described in the Policies. Equinix has the right at any time
to add Core Services or to modify any Core Services to the extent that such
modifications do not materially adversely affect Customer's operations at the
IBX Centers.

        c.    Under the terms and conditions set forth herein, Equinix grants
Customer access to its customer care website ("Customer Care Website") located
on the Internet at eccs.equinix.com or any other domain name Equinix may
determine from time to time at its sole discretion. Notwithstanding anything in
Section 1(b) to the contrary, Equinix may modify the functionality and content
of the Customer Care Website at any time and in any manner, and if Equinix
develops Customer Care Website Usage Policies, Customer must comply with the
Customer Care Website Usage Policies. The Customer Care Website is secured and
only Equinix, Equinix's customers and those authorized by Equinix's customers to
act on such customers' behalf are authorized to access the Customer Care
Website. Equinix will provide Customer with an account and password for use of
the Customer Care Website (e.g. to place orders for Services, which are referred
to in this Agreement as "Online Orders", to the extent permitted by Equinix) and
to place orders for Services via the telephone to the extent permitted by
Equinix ("Phone Orders") (Online Orders and Phone Orders will collectively be
referred to as "Online Phone Orders "). Customer is responsible for maintaining
the confidentiality of its account and password and for restricting and granting
access thereto. Notwithstanding anything in this Agreement to the contrary,
Customer is responsible and liable for all activities that occur under
Customer's account (including all payments owed for any Online Phone Orders that
are placed under Customer's account), regardless of whether such activities are
conducted by Customer, a Sublicensee or any other third party, and regardless of
whether such Orders are authorized by Customer. Equinix has no obligation to
verify that anyone using Customer's account and password has Customer's
authorization.

        2.    Additional Services.    

        a.    Additional Services are not included in the License Fees, and
Customer is fully responsible for separately paying for all Additional Services
Customer receives. All payment and financial terms for Additional Services will
be governed by this Agreement, including the Orders.

        b.    As an Additional Service, Equinix will install Cross-Connects, as
ordered by Customer, so long as the customers to which the Cross-Connects run
approve such Cross-Connects. Notwithstanding anything in this Agreement to the
contrary, for Customer's first Order in each separate IBX Center,

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Customer agrees to order a Cross-Connect no later than ninety (90) days after
the "Sales Order Effective Date" listed on that Sales Order (or the date that
the Online Phone Order is accepted if Equinix allows Licensed Spaces to be
ordered in such manner and Customer does so), and Customer agrees to thereafter
retain at least one active Cross-Connect at such IBX Center throughout the
remainder of the term of such Order.

        c.    During the Term, Customer may order other Additional Services then
offered by Equinix. Equinix reserves the right to require that Customer agree to
additional terms and conditions relating to any Additional Services before
performing any such Additional Services for Customer. Equinix has the right to
add to, modify or delete any or all Additional Services at any time.

        3.    Price and Payment Terms.    

        a.    Equinix will invoice Customer for the Services on a monthly basis,
and Customer will pay for the Services in accordance with this Section 3 and the
Orders. Customer will pay in full in U.S. dollars all invoices from Equinix
within thirty (30) days of the invoice date listed on the invoice, and any past
due amounts owed by Customer will accrue interest at the lesser of one and a
half percent (1.5%) per month or the highest rate permitted by applicable law.
Notwithstanding anything in this Agreement to the contrary, if any invoice is
past due, Equinix may (in addition to receiving the above interest payments and
any other remedies available under this Agreement or applicable law) (i) refuse
to provide any new Additional Services requested by Customer until all overdue
invoices are paid in full; (ii) refuse to provide power services to Customer
upon five (5) days' prior written notice, and (iii) deny access to the IBX
Center to Customer and Customer's Authorized Persons. If Equinix ceases
providing power services to Customer pursuant to this Section 3(a), Equinix will
resume power services within twenty-four (24) hours after the receipt of payment
of all past due invoices, via wire transfer or cashier's check, and Equinix may
charge a reinstatement fee equal to Fifty Dollars ($50.00) multiplied by the
number of circuits to be restored.

        b.    For Services ordered through Sales Orders, the initial rates and
fees for such Services will be listed on the Sales Orders. In the event that
Customer places an order for Services from Equinix using a method acceptable to
Equinix other than a Sales Order, including the Customer Care Website and/or
telephone, the initial rates and fees for such Services will be Equinix's
then-current list price for such Services. The rates and fees for Services
ordered by Customer on a Sales Order or Online/Phone Order will remain in effect
for one year from the date of the Order. Thereafter, rates and fees will be
subject to change, at Equinix's reasonable discretion, upon sixty (60) days'
prior written notice. Notwithstanding the foregoing, there are no restrictions
on Equinix's right to modify its rates and fees for Services as to Orders not in
effect prior to such changes.

        c.    Each Sales Order will specify the date for which recurring charges
under such Sales Order will commence. For each Online/Phone Order, the date for
which recurring charges will commence will be the first date in which Services
are made available for use by Customer under such Online/Phone Order. For each
Order, Customer will pay any recurring charges for a partial month on a prorata
basis, and, if any recurring charges increase or decrease during a month,
Customer will pay the amounts that were in effect for each portion of the month
for the applicable portion of the month. All non-recurring charges for an Order
will be invoiced on the first invoice issued after the Sales Order is executed
or the Online/Phone Order is made.

        d.    Customer will pay all taxes, governmental fees, and third-party
charges related to the ownership and operation of Customer's Equipment and the
activities of Customer at each IBX Center. Without limiting the foregoing,
Customer is responsible for timely paying in full all sales, use, transfer,
privilege, excise, and all other taxes and all duties, whether international,
national, state or local, however designated, now in force or enacted in the
future, which are levied or imposed by reason of the performance by Equinix or
Customer under this Agreement or by Customer with respect to its operations and
use of the Licensed Spaces and Customer's Equipment ("Taxes"); but the term
"Taxes" will exclude income taxes on Equinix's profits which may be levied
against Equinix. The rates and fees on the Sales Orders (as well as the list
prices for the Online/Phone Orders) are exclusive of the Taxes, which Customer
will also be responsible for paying at the same time it pays the amounts listed
on the

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Orders. Any applicable Taxes that Equinix wishes for Customer to pay directly to
Equinix will be stated separately on each invoice. In addition, Customer's
Equipment will not be construed to be fixtures, and Customer is responsible for
preparing and filing any necessary return with, and paying any and all Taxes
separately levied or assessed against Customer's Equipment to, any governmental,
quasi-governmental or tax authorities by the date such payments are due.

        4.    Access and Use of the IBX Centers, and Use of Customer's
Equipment.    

        a.    Subject to the terms and conditions of this Agreement, Customer
will have access to the Licensed Spaces twenty-four (24) hours per day, three
hundred sixty-five (365) days per year.

        b.    Except to the extent, and only to the extent, that Equinix has in
the Orders expressly undertaken any obligations with respect to Customer's
Equipment, Customer will be responsible for configuring, providing, placing,
installing, upgrading, adding, maintaining, repairing, and operating Customer's
Equipment, which actions Customer may engage in only to the extent permitted by,
and subject to, the terms and conditions of this Agreement (which includes,
without limitation, the Policies). Customer represents, warrants and covenants
that Customer has the legal right and authority, and will continue to have the
legal right and authority throughout the Term, to operate, configure, provide,
place, install, upgrade, add, maintain and repair Customer's Equipment as
contemplated by this Agreement. Without limiting the foregoing, Customer will
obtain and provide to Equinix such consent of Customer's subcontractors, third
party providers, vendors and any other parties as may be necessary for Equinix
(including any contractors or others acting at Equinix's request) to have the
right to use and access Customer's Equipment for the purpose of providing
Services.

        c.    At all times during the Term, Equinix and Customer agree to comply
with the Policies, which are at all times incorporated by reference into this
Agreement. Equinix has adopted the Policies to govern certain issues relating
to, among other things, access to, and use of, the IBX Centers, and use of
Customer's Equipment. Equinix will provide Customer with a copy of the current
Policies or shall make the Policies available to Customer upon Customer's
request, prior to the execution of this Agreement. Equinix is entitled to make
changes (including additions, modifications and deletions) to the Policies from
time to time at its reasonable discretion, but Equinix agrees that any future
changes to the Policies will not unreasonably limit Customer's right to utilize
the Licensed Spaces for the purposes contemplated by this Agreement. Except as
provided below, changes to the Policies will be effective as to Customer upon
notice to Customer. Notwithstanding the foregoing, any modification by Equinix
to the Shipping Policies will be effective immediately upon being made.

        d.    Customer assumes full responsibility and liability for all acts or
omissions of Customer's Authorized Persons, Accompanying Persons, and Associated
Entities while in or around or operating at the IBX Centers, and all such acts
or omissions will be attributed to Customer for all purposes under this
Agreement, including for purposes of determining responsibility, liability and
indemnification obligations. In addition, Customer will not file a mechanic's
lien or similar lien on the Licensed Spaces, IBX Centers or the IBX Properties,
and Customer will be responsible for any mechanic's lien or similar lien filed
by any Authorized Person, Accompanying Person or Associated Entity. Without
limiting the foregoing, in the event any such lien is filed, Customer will be
responsible for the immediate satisfaction, payment or bonding of any such lien.
Notwithstanding anything in this Agreement to the contrary, Customer will ensure
that all Authorized Persons and Accompanying Persons act only on Customer's
behalf while at the Licensed Spaces (or on a Sublicensee's behalf if at the
Sublicensee's Sublicensed Spaces), and that no Associated Entity (other than a
Sublicensee operating at its Sublicensed Spaces) will seek to operate equipment
on its own behalf while at the Licensed Spaces.

        5.    Indemnification.    

        Equinix will indemnify and hold harmless the Customer Parties from any
and all liability, damages, costs and expenses (including reasonable attorneys'
fees and expenses) arising from personal injury or property damage resulting
from the gross negligence or willful misconduct of Equinix. Customer will
indemnify and hold harmless the Equinix Parties from any and all liability,
damages, costs and expenses (including reasonable attorneys' fees and expenses)
arising from or relating to (i) personal injury or property damage resulting
from the gross negligence or willful misconduct of Customer; (ii) any claim

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by any of Customer's Authorized Persons, Accompanying Persons or Associated
Entities or any employee of Customer other than a claim based on the gross
negligence or willful misconduct of Equinix; (iii) any claim by a customer or
end-user of Customer relating to, or arising out of, Customer's or any of its
customers' services or the Services provided under this Agreement (including
claims relating to interruptions, suspensions, failures, defects, delays,
impairments or inadequacies in any of the aforementioned services, including the
Services from Equinix); (iv) any claim that Customer has failed to fulfill a
contractual obligation with a third party; and (v) any claim resulting from
Customer's failure to obtain the required consents pursuant to Section 4(b).

        6.    Warranty Disclaimer, Limitation of Liability, Credits.    

        a.    EQUINIX DOES NOT WARRANT THAT THE SERVICES PROVIDED HEREUNDER WILL
BE UNINTERRUPTED, ERROR-FREE, OR COMPLETELY SECURE. THE CREDITS REFERRED TO IN
SECTION 6(c) WILL BE EQUINIX'S SOLE LIABILITY AND CUSTOMER'S EXCLUSIVE REMEDY
FOR INTERRUPTIONS, SUSPENSIONS, FAILURES, DEFECTS, DELAYS, IMPAIRMENTS OR
INADEQUACIES IN ANY OF THE SERVICES. WITH REGARD TO ANY AND ALL OF THE SERVICES
(INCLUDING THE LICENSING OF THE LICENSED SPACES), EQUINIX DOES NOT MAKE, AND
HEREBY DISCLAIMS, ANY AND ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, INCLUDING
THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. ALL SERVICES PROVIDED PURSUANT TO THIS AGREEMENT ARE PROVIDED
OR PERFORMED ON AN "AS IS", "AS AVAILABLE" BASIS, AND CUSTOMER'S USE OF THE
SERVICES IS SOLELY AT ITS OWN RISK.

        b.    IN NO EVENT WILL EITHER PARTY BE LIABLE TO THE OTHER PARTY FOR ANY
CONSEQUENTIAL, INDIRECT, INCIDENTAL, SPECIAL, RELIANCE, EXEMPLARY OR PUNITIVE
DAMAGES, INCLUDING LOST PROFITS, LOSS OF BUSINESS, LOSS OF REVENUES, LOSS OF
DATA, INTERRUPTION OR CORRUPTION OF DATA, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES, OR ANY OTHER TYPE OF DAMAGES OTHER THAN DIRECT DAMAGES (AND WITH
DIRECT DAMAGES, ONLY TO THE EXTENT PERMITTED IN THIS AGREEMENT). NOTWITHSTANDING
ANYTHING IN THIS AGREEMENT TO THE CONTRARY,, EQUINIX'S TOTAL LIABILITY IN THE
AGGREGATE (INCLUDING ATTORNEY'S FEES) FOR THE ENTIRE TERM (AND THEREAFTER IF ANY
CLAIMS ARE BROUGHT AFTER THE TERM) FOR DAMAGES TO CUSTOMER WITH RESPECT TO ANY
AND ALL CLAIMS IN THE AGGREGATE AT ANY AND ALL TIMES ARISING FROM OR RELATED TO
THE SUBJECT MATTER OF THIS AGREEMENT WILL BE LIMITED TO, AND WILL NOT EXCEED,
THE AMOUNT ACTUALLY PAID BY CUSTOMER FOR RECURRING CHARGES FOR THE MONTH
IMMEDIATELY PRIOR TO THE MONTH IN WHICH THE FIRST CLAIM BROUGHT BY CUSTOMER
AGAINST EQUINIX RELATING TO THIS AGREEMENT AROSE. AS A FURTHER LIMITATION,
EQUINIX'S MAXIMUM LIABILITY RELATING TO ANY SERVICE OFFERED OR PROVIDED BY
EQUINIX UNDER THIS AGREEMENT FOR WHICH THE CHARGE IS A NON-RECURRING CHARGE (OR
FOR ANY SMART HANDS SERVICE PROVIDED) WILL EQUAL THE AMOUNT OF THE NON-RECURRING
CHARGE FOR SUCH SERVICE (OR THE CHARGE FOR THE SMART HANDS SERVICE PROVIDED) ON
THE OCCASION GIVING RISE TO THE CLAIM. NOTWITHSTANDING THE FOREGOING, EQUINIX
WILL HAVE NO LIABILITY RELATING TO ANY SMART HANDS SERVICE WHERE EQUINIX CURES
ITS BREACH OR CORRECTS THE WORK PERFORMED. THE LIMITATIONS SET FORTH IN THIS
SECTION 6(b) APPLY TO ANY CLAIMS AND CAUSES OF ACTION WHATSOEVER, REGARDLESS OF
THE FORMS OF THE ACTIONS, AND WHETHER IN CONTRACT, TORT, STRICT LIABILITY OR
OTHER THEORY EXCEPT SUCH LIMITS DO NOT APPLY IN THE CASE OF GROSS NEGLIGENCE OR
WILLFUL MISCONDUCT BY EQUINIX.

        c.    Except as provided in the last sentence of this Section 6(c), if
some or all of the Licensed Spaces are not usable for a period exceeding one
hour (the "Temporarily Unusable Licensed Spaces"), Customer, if it notifies
Equinix within five (5) days of such period, is entitled to a credit of the
monthly

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recurring portion of the License Fees for the Temporarily Unusable Licensed
Spaces only, which credit will equal one seven hundred twentieth (1/720) of the
monthly recurring portion of the License Fees for such Temporarily Unusable
Licensed Spaces for each hour that such space is unusable. This credit is
Customer's sole and exclusive remedy for interruptions, suspensions, failures,
defects, delays, impairments or inadequacies in any of the Services.
Notwithstanding the foregoing, Customer will have no right to receive a credit
if the Temporarily Unusable Licensed Spaces are not usable because of
(i) actions or omissions of Customer or any Sublicensee or other third-party
acting on Customer's behalf; (ii) Customer's Equipment or the equipment of any
Sublicensee or other third-party acting on Customer's behalf; or
(iii) circumstances or events beyond Equinix's control.

        7.    Insurance.    

        a.    Customer agrees to maintain, at Customer's expense, for each IBX
Center during the entire time this Agreement is in effect, (i) Commercial
General Liability Insurance in an amount not less than One Million Dollars
($1,000,000) per occurrence for bodily injury, death and property damage, which
policy will include contractual liability coverage related to this Agreement;
(ii) Workers' Compensation and employer's liability insurance in an amount not
less than that prescribed by law; and (iii) umbrella or excess liability
insurance with a combined single limit of no less than Two Million Dollars
($2,000,000). Customer will furnish Equinix with certificates of insurance that
evidence the minimum levels of insurance set forth herein and which name as
additional insureds Equinix and other parties with an interest in the Licensed
Spaces, the IBX Center, or the IBX Center Property, as designated by Equinix. In
addition, Customer will notify Equinix of any non-renewal, cancellation,
reduction in policy limit or other material change in Customer's coverage at
least forty-five (45) days prior to such change in coverage. Equinix will not
have any obligation to insure any property belonging to or in the possession of
Customer.

        b.    Customer will cause and ensure that each insurance policy of
Customer relating to the IBX Centers, Customer's Equipment or otherwise required
under, or relating to, this Agreement, will provide that the underwriters waive
all claims and rights of recovery by subrogation against the Equinix Parties in
connection with any liability or damage covered by Customer's insurance
policies. As to any property insurance carried by Equinix on the IBX Centers
where any of the Licensed Spaces are located, Equinix will obtain a waiver of
subrogation in favor of Customer. Except as set forth in Section 5, Customer
will not have any responsibility for any loss or damage to equipment owned by
Equinix, and Equinix will not have any responsibility for any loss or damage to
Customer's Equipment.

        8.    Confidentiality.    

        The parties agree to the terms and conditions set forth in Exhibit A.

        9.    Term of Agreement, Termination, and Removal of Customer's
Equipment.    

        a.    This Agreement will commence on the MSA Effective Date and, unless
earlier terminated in accordance with its terms, will terminate on the date the
last Order in effect expires or is terminated. Unless otherwise stated therein,
each Order will have an initial term of two (2) years, commencing on the date
listed as the "Sales Order Effective Date" for Sales Orders, and commencing on
the date Services are made available for Customer's use for Online/Phone Orders.
Unless otherwise stated therein, the term of each Order will renew automatically
for additional terms of one (1) year each, unless either party notifies the
other party in writing at least forty-five (45) days prior to the end of the
then-current term that it has elected to terminate the Order, in which event the
Order will terminate at the end of such then-current term. Notwithstanding
anything herein to the contrary, no order for Additional Services at an IBX
Center will survive the termination of Customer's rights to use Licensed Spaces
at such IBX Center.

        b.    Except as limited by Section 9(c), either party may terminate this
Agreement by giving written notice of termination to the other party if the
other party breaches any material term or condition of this Agreement and fails
to cure such breach within thirty (30) days after receipt of written notice of
the same, except that Equinix may terminate this Agreement if Customer fails to
cure any monetary breach of this Agreement (e.g. fails to pay any amounts owed)
within ten (10) days of written notice of the same (five (5) days in the event
Customer's account is past due on three (3) or more occasions

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during a six-month period). Notwithstanding the foregoing, Equinix may terminate
this Agreement, effective immediately upon notice, if (i) Equinix and Customer
have not executed Customer's first Order under this Agreement within ninety
(90) days after the date this Agreement is executed by Customer; (ii) Customer
breaches the same policy within the Policies on three or more occasions within
any twelve month period even if Customer cures the breach on each occasion; or
(iii) Customer liquidates, ceases to do business, or becomes insolvent.
Notwithstanding the foregoing, Customer may terminate this Agreement without
penalty upon written notice to Equinix, if Equinix files, or publicly announces
that it is contemplating to file chapter 7 or 11 bankruptcy. Such termination by
Customer shall not relieve Customer of its obligations to pay for Services
performed prior to the termination of this Agreement.

        c.    Notwithstanding anything in Section 9(b) to the contrary, except
where Customer has failed to timely cure a monetary breach, if a party fails to
timely cure a material breach as to only one IBX Center, and Customer has
licensed Licensed Spaces in more than one IBX Center, the non-breaching party
may only terminate this Agreement (and the corresponding Orders) as to the IBX
Center where the material breach has not been timely cured, and this Agreement
will remain in full force and effect as to all other IBX Centers.

        d.    Equinix may terminate this Agreement as to any affected Licensed
Spaces or IBX Center if any portion of the IBX Center in which the affected
Licensed Spaces are located becomes subject to a condemnation proceeding or is
condemned, Equinix's possession is otherwise terminated or abated, or Equinix
cannot provide Customer with access to the affected Licensed Spaces as
contemplated herein for a period exceeding thirty (30) days.

        e.    If Customer breaches any provision of this Agreement that in
Equinix's reasonable judgment requires that Customer immediately cure the breach
(e.g. a breach causing material interference with Equinix's operations in an IBX
Center), Customer will cure the breach immediately upon notice from Equinix. If
Customer fails to do so, Equinix has the right, without any liability to
Customer and with no abatement of charges, to cease providing the power services
to Customer until such breach is cured. If Equinix ceases providing power
services to Customer pursuant to this Section 9(e), Equinix will resume power
services within twenty-four (24) hours after Customer cures the breach, and
Equinix may charge a reinstatement fee equal to Fifty Dollars ($50.00)
multiplied by the number of circuits to be restored.

        f.      Neither party will be liable to the other party for properly
terminating this Agreement (or properly terminating this Agreement as to certain
Licensed Spaces or certain IBX Centers) in accordance with its terms, but
Customer will be liable to Equinix for any accrued amounts owed prior to the
effective date of termination.

        g.    Upon expiration or termination of an Order (or a portion thereof),
with respect to the Licensed Spaces covered by that Order or the terminated
portion thereof (the "Terminated Spaces"), the license and all other rights of
Customer with respect to such Terminated Spaces, and the right to receive
Services associated with such Terminated Spaces, will terminate, and Customer
will remove all of Customer's Equipment and other property belonging to Customer
or Customer's Authorized Persons, Accompanying Persons and/or Associated
Entities, but excluding any wiring, cable or other equipment or property owned,
leased or licensed by Equinix, from the Terminated Spaces (whether or not
belonging to Customer), no later than the effective date of such termination. If
Customer fails to remove any such property by the effective date of termination,
Equinix will be entitled to pursue all available legal remedies against
Customer, including one or more of the following remedies: immediately removing
any or all such property and storing it at Customer's expense at an on-site or
off-site location, shipping such property to Customer at Customer's expense, or
liquidating such property in any commercially reasonable manner and charging
Customer for all costs associated with the liquidation.

        h.    For any Order, Customer shall pay Equinix a deposit equal to one
month of recurring charges for the Licensed Spaces set forth in that Order (the
"Deposit"). The Deposit shall be held by Equinix and returned or credited to
Customer, without interest, on the earlier of 1) termination of such Order or
2) upon written request to Equinix by Customer no sooner than 12 months after
the Sales Order

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Effective Date in that Order. In the event of breach of this Agreement by
Customer, Equinix shall, without limiting its remedies otherwise available, have
the right to apply the Deposit to the damages suffered by Equinix as a result of
such breach.

        10.    Miscellaneous.    

        a.    Except where otherwise expressly stated in the Agreement, all
notices, consents, or approvals required by this Agreement will only be
effective if in writing and sent by (i) certified or registered air mail,
postage prepaid, (ii) overnight delivery requiring a signature upon receipt, or
(iii) facsimile or electronic mail (promptly confirmed by certified or
registered mail or overnight delivery), to the parties at the respective street
addresses, facsimile numbers, or electronic mail addresses set forth at the end
of this Agreement or such other addresses or facsimile numbers as may be
designated in writing by the respective parties. Notices, consents and approvals
will be deemed effective on the date of receipt.

        b.    This Agreement will be governed in all respects by the internal
laws of the State of California (as if made and entered into between California
residents and fully executed within California) without regard to its conflict
of laws provisions. Any dispute, controversy or claim arising out of or in
relation to this Agreement or at law, or the breach, termination or invalidity
thereof, whether in contract, tort or otherwise, will be finally settled by
arbitration in San Francisco, California in accordance with the commercial rules
of the American Arbitration Association (AAA). Equinix and Customer will each
select one arbitrator who will together select a third arbitrator. If the two
arbitrators selected by the parties are unable to select the third arbitrator
within ten (10) days of the appointment of the two arbitrators, the parties
consent to the selection of the third arbitrator by the AAA administrator. The
parties agree that any arbitration award will be binding and enforceable in any
court of competent jurisdiction. If any legal action (such as to enforce an
arbitration award) or arbitration is brought by either party under, or relating
to, this Agreement, the prevailing party will be entitled to an award of its
reasonable attorneys' fees and costs. Neither party will have any claim against
the other party arising under or in any way relating to this Agreement unless
the party asserting such claim gives written notice of such claim to the other
party not later than six months after the date this Agreement expires or is
early terminated.

        c.    Except as may be specifically otherwise agreed by an Affiliate or
subsidiary of a party, neither party's directors, officers, Affiliates,
subsidiaries, employees, or contractors will have any liability to the other
party with respect to this Agreement.

        d.    This Agreement, the exhibits, the Policies (and as they may be
amended from time to time by Equinix), the Customer Care Website Usage Policies,
if any (and as they may be amended from time to time by Equinix), all Sales
Orders (whether executed at the time this Agreement is executed or at any time
during the course of this Agreement), and all Online/Phone Orders (whether
agreed to at the time this Agreement is executed or at any time during the
course of this Agreement), all of which are incorporated herein by reference
into this Agreement, constitute the complete and entire agreement between the
parties with respect to the subject matter hereof, and supersede and replace any
and all prior or contemporaneous discussions, negotiations, proposals,
understandings and agreements, written and oral, regarding such subject matter,
as well as any industry custom. This Agreement will be effective only when
signed by all parties. Each person signing below hereby warrants and represents
that he or she has full authority to execute this Agreement for the party on
whose behalf he or she is signing. This Agreement may be executed in two or more
counterparts, each of which will be deemed an original, but all of which
together will constitute one and the same instrument. This Agreement may be
amended only in writing by an instrument signed by all parties.

        e.    No waiver of any breach of any provision of this Agreement will
constitute a waiver of any prior, concurrent or subsequent breach of the same or
any other provisions hereof, and no waiver will be effective unless made in
writing and signed by an authorized representative of the waiving party and
clearly understood by the waiving party to be such a waiver.

        f.      If Customer and Equinix execute multiple Orders, each additional
Order will supplement rather than replace the prior Orders, unless otherwise
stated by the parties in writing. Notwithstanding anything in this Agreement to
the contrary, Equinix has no obligation to execute any Order with

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Customer and no Sales Order will be effective unless executed by both parties,
and no Online/Phone Order will be effective unless made by Customer and agreed
to by Equinix, which agreement by Equinix will be reflected by Equinix's
provision of the Services ordered under the Online/Phone Order. Under no
circumstances will any Order survive the expiration or earlier termination of
this Agreement, and under no circumstances will any Order pertaining to an IBX
Center survive the termination of this Agreement as to that IBX Center. Equinix
will not have any obligation to provide any of its Services after the expiration
or earlier termination of this Agreement, and Equinix will not have any
obligation to provide any of its Services at an IBX Center after the expiration
or earlier termination of this Agreement as to such IBX Center.

        g.    Each party acknowledges and agrees that it has reviewed, and has
had an opportunity to have reviewed, this Agreement (including the exhibits and
the Policies), and it is the parties' intent that this Agreement will not be
construed against either party. The section headings and captions throughout
this Agreement are for convenience and reference only, and will not be used to
construe this Agreement.

        h.    If any provision of this Agreement, as applied to either party or
to any circumstance, is adjudged by a court or arbitrator to be invalid, illegal
or unenforceable, the same will not affect the validity, legality, or
enforceability of the portion of the provision, if any, that is not invalid,
illegal or unenforceable, the application of such provision in any other
circumstances, or the validity, legality, or enforceability of any other
provision of this Agreement. All terms and conditions of this Agreement will be
deemed enforceable to the fullest extent permissible under applicable law, and,
when necessary, the court or arbitrator in any action between the parties is
requested to reform any and all terms or conditions to give them as much effect
as possible.

        i.      Sections 5, 6, 8 and 10 and Exhibit A will survive the
termination of this Agreement. In addition, all provisions of this Agreement
that can only be given proper effect if they survive the termination of this
Agreement will survive the termination of this Agreement. This Agreement will be
valid as to any obligation incurred prior to termination of this Agreement.
Without limiting the foregoing, Customer will pay all amounts owed to Equinix
under this Agreement, including any amounts that are not due until after the
expiration or earlier termination of this Agreement. Each party recognizes and
agrees that the warranty disclaimers and liability and remedy limitations in
this Agreement are material bargained for bases of this Agreement and that they
have been taken into account and reflected in determining the consideration to
be given by each party under this Agreement and in the decision by each party to
enter into this Agreement. The parties agree that the warranty disclaimers and
liability and remedy limitations in this Agreement will survive and apply even
if found to have failed of their essential purpose.

        j.      Except where otherwise expressly stated herein, and subject to
the limitations set forth in Section 6, the rights and remedies provided for
herein are cumulative and not exclusive of any rights or remedies that a party
would otherwise have.

        k.    Equinix and Customer are independent contractors and this
Agreement will not establish any relationship of partnership, joint venture,
employment, franchise or agency between Equinix and Customer. Neither Equinix
nor Customer will have the power to bind the other or incur obligations on the
other's behalf without the other's prior written consent. Neither Customer nor
Equinix grants the other the right to use its trademarks, service marks, trade
names, logos, copyrights, or other intellectual property rights or other
designations in any promotion, publication, or press release without the prior
written consent of the other party in each case.

        l.      This Agreement, and the rights of Customer hereunder, are,
without any further action by any party, subject and subordinate to the leases
for the IBX Centers and all superior instruments to such leases (including,
without limitation, mortgages or ground leases for the IBX Centers or the IBX
Properties). This Agreement is a services agreement and is not intended to and
will not constitute a lease of any real or personal property. Customer
acknowledges and agrees that (i) it has been granted only a license to use the
Licensed Spaces in accordance with this Agreement; (ii) Customer has not been
granted any real property interest in any portion of the IBX Centers (including,
without

--------------------------------------------------------------------------------

limitation, the Licensed Spaces) or the IBX Center Properties; and
(iii) Customer has no rights as a tenant or otherwise under any real property or
landlord/tenant laws, regulations, or ordinances. Equinix hereby reserves, with
respect to the IBX Centers, all rights not specifically granted to Customer in
this Agreement, including, without limitation, the right (i) of access to and
use of the IBX Centers for its own use or the use of others; (ii) to grant
additional licenses to other persons or co-location customers for the use of
portions of the IBX Centers; and (iii) to exercise or grant other rights not
inconsistent with the rights granted in this Agreement. This Agreement applies
only to IBX Centers located in the United States in which Customer licenses
Licensed Spaces.

        m.    Equinix may assign, delegate or transfer its rights and
obligations under this Agreement to any person or entity, and in the event of
any such assignment, transfer or delegation, and the assumption by the
transferee of the obligations of Equinix hereunder, Equinix will be released
from any further liability or obligation under this Agreement. Customer may
assign this Agreement without Equinix's consent only where the party to whom
this Agreement is assigned by Customer has a net worth at least equal to that of
Customer's net worth and such party is either an Affiliate of Customer, or is
acquiring all or substantially all of Customer's business or assets, including
through merger. This Agreement will be binding upon and inure to the benefit of
all successors and permitted assigns of Equinix and Customer, who will be bound
by all of the obligations of their predecessors or assignors. Except as set
forth in Exhibit B of this Agreement with respect to sublicensing, and this
Section 10(m), Customer will not assign, delegate, transfer or sublicense all or
any part of the Licensed Spaces.

        n.    Equinix will not be responsible or in any way liable, and Customer
will not have any termination or other rights, arising out of or relating to any
failure by Equinix to perform its obligations under this Agreement if such
failure is caused by events or circumstances beyond Equinix's control, including
acts of God, war, labor strike, terrorist act, fire, flood, earthquake, any law,
order, regulation or other action of any governing authority or agency thereof,
or failure of the Internet.

        o.    All Orders, including Sales Orders and Online/Phone Orders, are
subject to all of the terms and conditions of this Agreement.

        11.    Definitions.    

        At any given time during the term of this Agreement, the terms set forth
below will have the following meanings unless expressly stated otherwise:

        Affiliate: As to a party, means any entity controlling, controlled by,
or under common control with such party, where the term "control" and its
correlative meanings, "controlling," "controlled by," and "under common control
with," means the legal, beneficial or equitable ownership, directly or
indirectly, of more than fifty percent (50%) of the aggregate of all voting
equity interests in an entity.

        Authorized Person: Each person who is included on a list of Authorized
Persons given to Equinix by Customer in accordance with the Policies.

        Accompanying Person: Each person (other than an Equinix employee) who is
accompanied by an Authorized Person while at an IBX Center.

        Associated Entity: Each company, partnership or other entity of any type
which employs, contracts with, or is otherwise associated or affiliated with any
of Customer's Authorized Persons or Accompanying Persons. Without limiting the
foregoing definition, each Sublicensee that has sublicensed Sublicensed Spaces
at an IBX Center will be an Associated Entity at such IBX Center.

        Cross-Connect: An interconnection that exits Customer's cage or that
runs between Customer and another Equinix customer of any kind or another party
at the IBX Center (including interconnections that use the environment as a
carrier, such as wireless and infrared connections).

        Customer Care Website Usage Policies: The website usage policies that
Equinix at any time adopts for the Customer Care Website.

--------------------------------------------------------------------------------

        Customer Cross-Connect: An interconnection that runs between Customer's
Equipment and in the same cage, including cables, connections, and other wiring
between items of Customer's Equipment, or between Customer's POD Equipment and
any other of Customer's Equipment, within a single cage.

        Customer's Equipment: All network and/or computer equipment (including
wiring and Customer Cross-Connects between such equipment and Customer's POD
Equipment) that is located in the Licensed Spaces, regardless of whether such
equipment is owned, leased, licensed or otherwise obtained for use by Customer
(but this does not include Cross-Connects or Equinix POD Equipment located in
Customer's Licensed Spaces).

        Customer Parties: Customer and the Affiliates, owners, officers,
directors, employees, contractors and agents of Customer.

        Equinix Parties: Equinix and the Affiliates, owners, officers,
directors, employees, contractors and agents of Equinix.

        IBX Center Property: The real property on which, and the building in
which, an IBX Center is located.

        IBX Centers: The Internet Business Exchange Centers located in the
United States leased or owned by Equinix in which Customer licenses Licensed
Space(s) or receives Services from Equinix pursuant to an Order.

        License Fees: The non-recurring and monthly recurring charges for the
licensing and set-up of the Licensed Spaces.

        Licensed Spaces: The areas licensed by Customer under this Agreement and
as identified in the Orders as to the amount of spaces. For each Licensed Space,
Equinix will determine at all times during the Term the exact location in the
IBX Centers where the Licensed Space will be located, and Equinix will notify
Customer accordingly.

        Orders: The Sales Orders and Online/Phone Orders between the Customer
and Equinix.

        POD Equipment: The (1) patch panels, DSX panels for category 5 twisted
pair, co-axial, single and multi-mode fiber, or (2) other appropriate (as
reasonably determined by Equinix) point of demarcation equipment.

        Policies: The procedures, rules, regulations, security practices and
policies adopted by Equinix that are then in effect for the IBX Centers, and as
they may be changed from time to time by Equinix.

        Sales Orders: All sales orders executed by the parties that provide that
such orders are governed by, and incorporated by reference in, this Agreement.

        Services: The set-up and licensing of the Licensed Spaces, the Core
Services and any Additional Services provided to Customer.

        Shipping Policies: The portion of the Policies entitled Shipping
Policies.

        Sublicensed Spaces: The portion of the Licensed Spaces sublicensed to a
Sublicensee by Customer.

        Sublicensee: A customer of Customer who obtains Internet and/or
telecommunications services from Customer and who sublicenses all or part of the
Licensed Spaces from Customer.

        Term: The term of this Agreement.

--------------------------------------------------------------------------------

        This Master Service Agreement between Equinix and Customer has been
executed as of the MSA Effective Date set forth at the beginning of this
Agreement.

Customer to complete:   Equinix to Complete:
The individual executing this Agreement on behalf of Customer has been duly
authorized to execute this Agreement on behalf of Customer.
 
The individual executing this Agreement on behalf of Equinix has been duly
authorized to execute this Agreement on behalf of Equinix.
Customer Name: VitalStream, Inc.
 
  Submitted By: /s/ David R. Williams   Submitted By: /s/ Keith D. Taylor
                (Authorized Signature)                   (Authorized Signature)
Printed Name: David R. Williams
 
Printed Name: Keith D. Taylor
Date Signed: 6/7/02
 
Date Signed: 6/7/02
Title: VP Operations
 
Title: VP Finance & Controller
Street addresses for notices:
 
Street addresses for notices:
Attn: Philip N. Kaplan
 
 
1 Jenner, #100
 
2450 Bayshore Parkway
Irvine, CA 92618
 
Mountain View, CA 94043, USA
Facsimile numbers:
 
Facsimile numbers:
(949) 453-8686
 
(650) 316-6911
Electronic mail addresses:
 
Electronic mail addresses:
dwilliams@vitalstream.com
 
contracts@equinix.com

--------------------------------------------------------------------------------

Exhibit A

Confidentiality Provisions

        The following provisions apply with respect to the treatment of
confidential information disclosed by the parties hereto. All capitalized terms
not defined in this exhibit shall have the respective meanings specified in the
Master Service Agreement to which this Exhibit A is attached.

        a.    Except as expressly permitted in this Agreement, neither party
will, without the prior written consent of the other party, disclose any
Confidential Information of the other party. Information will be considered
Confidential Information of a party if either (i) it is disclosed by the party
to the other party in tangible form and is conspicuously marked "Confidential",
"Proprietary" or the like; or (ii) (a) it is disclosed by one party to the other
party in non-tangible form and is identified as confidential at the time of
disclosure; and (b) it contains the disclosing party's customer lists, customer
information, technical information, pricing information, pricing methodologies,
or information regarding the disclosing party's business planning or business
operations. In addition, notwithstanding anything in this Agreement to the
contrary, (i) the terms of this Agreement will be deemed Confidential
Information of each party; and (ii) the design of the IBX Centers, the Services
provided and equipment used at the IBX Centers and the configuration,
interconnection, switching and routing of telecommunication cables, networks and
services at the IBX Centers will be considered Confidential Information of
Equinix.

        b.    Other than the terms and conditions of this Agreement, information
will not be deemed Confidential Information hereunder if such information (i) is
known to the receiving party prior to receipt from the disclosing party directly
or indirectly from a source other than one having an obligation of
confidentiality to the disclosing party; (ii) becomes known (independently of
disclosure by the disclosing party) to the receiving party directly or
indirectly from a source other than one having an obligation of confidentiality
to the disclosing party; (iii) becomes publicly known or otherwise ceases to be
secret or confidential, except through a breach of this Agreement by the
receiving party; or (iv) is independently developed by the receiving party. The
terms and conditions of this Agreement will cease being confidential if, and
only to the extent that, they become publicly known, except through a breach of
this Agreement by the receiving party.

        c.    Each party will secure and protect the Confidential Information of
the other party (including, without limitation, the terms of this Agreement) in
a manner consistent with the steps taken to protect its own trade secrets and
confidential information, but not less than a reasonable degree of care. Each
party may disclose the other party's Confidential Information where (i) the
disclosure is required by applicable law or regulation or by an order of a court
or other governmental body having jurisdiction after giving reasonable notice to
the other party with adequate time for such other party to seek a protective
order; (ii) if in the opinion of counsel for such party, disclosure is advisable
under any applicable securities laws regarding public disclosure of business
information; or (iii) the disclosure is reasonably necessary and is to that
party's employees, attorneys, accountants and other advisors, or the disclosure
is otherwise necessary for a party to exercise its rights and perform its
obligations under this Agreement, so long as in all cases the disclosure is no
broader than necessary and the party who receives the disclosure agrees prior to
receiving the disclosure to keep the information confidential. Each party is
responsible for ensuring that any Confidential Information of the other party
that the first party discloses pursuant to this Exhibit A is kept confidential
by the person receiving the disclosure.

        d.    Notwithstanding the restrictions set forth in this Exhibit A or
Section 10(k), during the Term, (i) Equinix may issue a press release announcing
Customer's entry into the IBX Centers upon obtaining Customer's consent; and
(ii) either party may publicly refer to the other party, orally and in writing,
as a customer or vendor of services of or to the other party, as the case may
be, upon consent from such party, which consent may be withheld for any reason.

--------------------------------------------------------------------------------

Exhibit B

Sublicensing Provisions

        The following provisions apply with respect to any sublicense of
Licensed Spaces (all capitalized terms herein having the respective meanings
specified in the Master Service Agreement to which this Exhibit B is attached).

        a.    Customer may sublicense (but may not assign, except as permitted
under Section 10(m), delegate or otherwise transfer) the Sublicensed Spaces to
Sublicensees. Prior to any sublicense to a Sublicensee, (i) Sublicensee must
execute, and Customer will ensure that each Sublicensee executes, an agreement
with Equinix (the "Sublicensee Agreement"), the current form of which will be on
the Internet at www.equinix.com/sublicensee_agreement.pdf, or any other domain
name Equinix may determine from time to time at its sole discretion, and
(ii) Customer shall provide Sublicensee with a copy of the Policies. If
Sublicensee fails to execute the Sublicensee Agreement, Sublicensee shall have
no right to sublicense any of the Licensed Spaces, and any sublicense
arrangement or agreement between Sublicensee and Customer regarding the Licensed
Spaces will be null and void.

        b.    Notwithstanding any sublicensing of Sublicensed Spaces, Customer
will remain fully responsible to Equinix for the performance of all of
Customer's obligations under this Agreement (including the payment of all
amounts owed under this Agreement) and all other agreements between Equinix and
Customer ("Related Agreements"). No sublicense agreement or arrangement between
Customer and any Sublicensee will relieve Customer from any liability under this
Agreement or any Related Agreements. Without limiting the foregoing, Customer is
responsible for paying the License Fees for all of the Licensed Spaces
(including Sublicensed Spaces) and the charges for Additional Services for, or
relating to, any or all of the Licensed Spaces (including Sublicensed Spaces).
In no event will Equinix be deemed to be providing any Services to Sublicensee
for, or relating to, the Sublicensed Spaces, as the provision of any such
Services will be deemed to be to Customer for all purposes under this Agreement.

        c.    Customer must ensure that each and every sublicense agreement or
other sublicense arrangement that Customer has with a Sublicensee does not have
any terms and conditions that (i) are inconsistent with this Agreement or the
Sublicensee Agreement, or (ii) seek to provide Sublicensee with rights that
Customer does not have under this Agreement. Without limiting the foregoing or
any other restrictions on Sublicensees, no Sublicensee will have any right to
use its Sublicensed Spaces in any manner that Customer is not permitted to use
the Licensed Spaces.

        d.    Sublicensees do not have any rights, separate and apart from
Customer's rights, to access their Sublicensed Spaces. Accordingly, only
Customer's Authorized Persons at an IBX Center may access the Sublicensed Spaces
of Sublicensees at such IBX Center. Furthermore, Equinix is not responsible for
restricting a Sublicensee's access to Customer's Licensed Spaces located in a
cage to which that Sublicensee has access.

        e.    Notwithstanding anything in this Agreement to the contrary, a
Sublicensee has no right to sublicense, delegate, assign or otherwise transfer
its rights to use the Sublicensed Spaces to any other person or entity without
Equinix's consent, which consent may be withheld for any reason whatsoever or no
reason.

        f.      If the parties agree, (i) Equinix and Customer will participate
in a joint press announcement to announce when a Sublicensee sublicenses
Sublicensed Spaces at an IBX Center.

        g.    Without limiting Customer's indemnification obligations under
Section 5, Customer will indemnify and hold harmless the Equinix Parties from
any and all liability, damages, costs and expenses (including reasonable
attorneys' fees and expenses) arising from or relating to (i) any claim by a
customer or end-user of any Sublicensee relating to, or arising out of, a
Sublicensee's or any of its customers' services, Customer's or any of its
customers' services, or the Services provided under this Agreement (including
claims relating to interruptions, suspensions, failures, defects, delays,
impairments or inadequacies in any of the aforementioned services, including the
Services from Equinix); and (ii) any claim by a Sublicensee to the extent that
such claim, if sustained, would result in any greater obligation or liability of
Equinix to such Sublicensee than Equinix has undertaken to Customer under this
Agreement or any of the Related Agreements.

--------------------------------------------------------------------------------

[Equinix Logo]   Sales Order    

--------------------------------------------------------------------------------

Customer name:   Account manager:   Sales Order number: VitalStream, Inc.  
Marlis Porter   A0F0A0001S

--------------------------------------------------------------------------------

IBX center:   Term:   Issue date: ASHBURN, VA   12 Month   May 3, 2002

--------------------------------------------------------------------------------

Section A—Space

--------------------------------------------------------------------------------

Product

  Total linear
inches

  Quantity

  Total non-
recurring
charges

  Total recurring
charges

--------------------------------------------------------------------------------

Installable units           $        —   $        —

--------------------------------------------------------------------------------

Section B—Space Requirements Worksheet

--------------------------------------------------------------------------------

Exterior width

  Quantity

  Non-recurring
monthly
charge/unit

  Recurring
monthly
charge/unit

--------------------------------------------------------------------------------

19" cabinet-equivalent (up to and including 23" in exterior width)      
$        —   $        —

--------------------------------------------------------------------------------

23" cabinet-equivalent (greater than 23" but less than and including 27" in
exterior width)       $        —   $        —

--------------------------------------------------------------------------------

27" cabinet-equivalent (greater than 27" but less than and including 31" in
exterior width)       $        —   $        —

--------------------------------------------------------------------------------

31" cabinet-equivalent (greater than 31" but less than and including 35" in
exterior width)       $        —   $        —

--------------------------------------------------------------------------------

        Equinix agrees to license to Customer, and Customer agrees to license
from Equinix, the space required to locate the Product(s) set forth in Section A
(the "Licensed Space") at the IBX Center. For purposes of this Sales Order,
"Installable Unit" shall mean a cabinet or other free-standing equipment unit,
and "Exterior Width" shall mean the width of an Installable Unit at its widest
point. Customer may install a combination of Installable Units which differs
from the one set forth in Section B, provided that the aggregate Exterior Width
of the Installable Units does not exceed the Total Linear Inches set forth in
Section A. The price for each Installable Unit installed in the Licensed Space
shall be the corresponding price set forth in Section B, based on the Exterior
Width of such Installable Unit, regardless of whether such Installable Unit is
included in the Quantity listed in Section B. In the event that Customer desires
to install an Installable Unit that has an Exterior Width that is wider than
35", Customer must contact its Account Representative for pricing. Customer
acknowledges that (i) if Customer places items other than Installable Units in
the Licensed Space, the number of Installable Units that fit in the Licensed
Space may be less than the Quantity set forth in Section A, (ii) the number of
Installable Units that fit in the Licensed Spaces may vary from the Quantity set
forth above due to the Exterior Width of the Installable Units installed and
(iii) Customer shall be charged the Total Nonrecurring Charges and the Total
Recurring Charges as set forth herein regardless of the quantity of Installable
Units installed or the Total Linear Inches used.

--------------------------------------------------------------------------------

Section C—Other Products and Services

--------------------------------------------------------------------------------

Product or service

  Units
  Non-recurring
charge/unit
  Recurring
charge/unit
  Non-recurring
charges
  Recurring
charges

--------------------------------------------------------------------------------

Cross-Connect—Multi-mode (SC)        CC00033   1     [Pricing Information in the
following table is omitted pursuant to Rule 24b-2, filed separately with the
Securities and Exchange Commission and is subject to a confidential treatment
request.]

--------------------------------------------------------------------------------

19" Locking cabinet—shared cage   1                        

--------------------------------------------------------------------------------

Power—20-amp, 120 V AC        POW00003   1                        

--------------------------------------------------------------------------------

        $   —   $   —   $   —   $   —

--------------------------------------------------------------------------------

        $   —   $   —   $   —   $   —

--------------------------------------------------------------------------------

SUBTOTAL                            

--------------------------------------------------------------------------------

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

--------------------------------------------------------------------------------

GRAND TOTAL                            

--------------------------------------------------------------------------------

        Prices shown above do not include any applicable taxes, which are the
responsibility of the Customer. This Sales Order is between Equinix, Inc. or its
wholly owned subsidiary ("Equinix") and the customer identified above
("Customer"), who wishes to order the products and/or services set forth above
(each an "Offering"). Unless otherwise agreed to by the parties in writing, each
Offering shall be delivered at the Internet Business Exchange Center identified
above ("IBX Center"). This Sales Order is governed by, and incorporated by
reference in, the Master Service Agreement having an Effective Date
of                        , 20    between Customer and Equinix (the
"Agreement"). Notwithstanding anything to the contrary in the Agreement, the
term of this Sales Order shall begin on the date this Sales Order is signed by
both parties (the "Sales Order Effective Date") and shall extend for the period
designate above as the "Term". Thereafter, this Sales Order will renew
automatically for additional terms of one (1) month each, unless either party
notifies the other party in writing at least one month prior to the end of the
then-current term that it has elected to terminate this Sales Order, in which
event this Sales Order will terminate at the end of such then-current term.
Notwithstanding anything to the contrary in the Agreement, (i) if the Agreement
expires prior to the expiration of this Sales Order's then-current term, all of
the terms and conditions of the Agreement (including limitation of liability and
indemnification) will continue to apply to this Sales Order and all Offerings,
until this Sales Order expires or is terminated, and (ii) if the Agreement is
terminated by either party prior to its full term, then this Sales Order, if
still in effect, shall terminate upon the termination of the Agreement. The
previous sentence shall apply even if the Agreement contains a provision stating
that in the event of a conflict the Agreement controls. Any change in the prices
set forth above shall be made in accordance with the Agreement, unless otherwise
stated herein. This Sales Order shall be of no force or effect unless (a) it is
executed by both parties and (b) Customer and Equinix have entered into a Master
Service Agreement under which this Sales Order is executed.

        Customer's obligation to pay the total recurring charges and the total
non-recurring charges set forth in Sections A and C shall begin on the earlier
of (a) thirty (30) days after the Sales Order Effective Date or (b) the date
Equinix delivers the Offering to Customer in response to Customer's request for
delivery of such Offering.

Customer to complete:   Equinix to complete:
Printed name: David R. Williams

--------------------------------------------------------------------------------

 
Printed name: Keith D. Taylor, VP Finance & Controller

--------------------------------------------------------------------------------

Submitted by:/s/ David R. Williams

--------------------------------------------------------------------------------

                Authorized Signature
 
Submitted by: /s/ Keith D. Taylor

--------------------------------------------------------------------------------

                Authorized Signature
Title: VP, Operations
 
Title:

--------------------------------------------------------------------------------

 

--------------------------------------------------------------------------------

Date signed: 6/7/02

--------------------------------------------------------------------------------

 
Date signed: 6/7/02

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Billing Information:

Billing Contact Name:            

--------------------------------------------------------------------------------

    Billing Address:            

--------------------------------------------------------------------------------

   
 
 

--------------------------------------------------------------------------------

 
 
 
 

--------------------------------------------------------------------------------

 
  Phone Number:            

--------------------------------------------------------------------------------

    E-mail Address:            

--------------------------------------------------------------------------------

   

--------------------------------------------------------------------------------

[Equinix Logo]   Sales Order    

--------------------------------------------------------------------------------

Customer name:   Account manager:   Sales Order number: VitalStream, Inc.  
Marlis Porter   A0I0A00024

--------------------------------------------------------------------------------

IBX center:   Term:   Issue date: Chicago   12 Month   May 3, 2002

--------------------------------------------------------------------------------

Section A—Space

--------------------------------------------------------------------------------

Product

  Total linear
inches

  Quantity

  Total non-
recurring
charges

  Total recurring
charges

--------------------------------------------------------------------------------

Installable units           $        —   $        —

--------------------------------------------------------------------------------

Section B—Space Requirements Worksheet

--------------------------------------------------------------------------------

Exterior width

  Quantity

  Non-recurring
monthly
charge/unit

  Recurring
monthly
charge/unit

--------------------------------------------------------------------------------

19" cabinet-equivalent (up to and including 23" in exterior width)      
$        —   $        —

--------------------------------------------------------------------------------

23" cabinet-equivalent (greater than 23" but less than and including 27" in
exterior width)       $        —   $        —

--------------------------------------------------------------------------------

27" cabinet-equivalent (greater than 27" but less than and including 31" in
exterior width)       $        —   $        —

--------------------------------------------------------------------------------

31" cabinet-equivalent (greater than 31" but less than and including 35" in
exterior width)       $        —   $        —

--------------------------------------------------------------------------------

        Equinix agrees to license to Customer, and Customer agrees to license
from Equinix, the space required to locate the Product(s) set forth in Section A
(the "Licensed Space") at the IBX Center. For purposes of this Sales Order,
"Installable Unit" shall mean a cabinet or other free-standing equipment unit,
and "Exterior Width" shall mean the width of an Installable Unit at its widest
point. Customer may install a combination of Installable Units which differs
from the one set forth in Section B, provided that the aggregate Exterior Width
of the Installable Units does not exceed the Total Linear Inches set forth in
Section A. The price for each Installable Unit installed in the Licensed Space
shall be the corresponding price set forth in Section B, based on the Exterior
Width of such Installable Unit, regardless of whether such Installable Unit is
included in the Quantity listed in Section B. In the event that Customer desires
to install an Installable Unit that has an Exterior Width that is wider than
35", Customer must contact its Account Representative for pricing. Customer
acknowledges that (i) if Customer places items other than Installable Units in
the Licensed Space, the number of Installable Units that fit in the Licensed
Space may be less than the Quantity set forth in Section A, (ii) the number of
Installable Units that fit in the Licensed Spaces may vary from the Quantity set
forth above due to the Exterior Width of the Installable Units installed and
(iii) Customer shall be charged the Total Nonrecurring Charges and the Total
Recurring Charges as set forth herein regardless of the quantity of Installable
Units installed or the Total Linear Inches used.

--------------------------------------------------------------------------------

Section C—Other Products and Services

--------------------------------------------------------------------------------

Product or service

  Units
  Non-recurring
charge/unit
  Recurring
charge/unit
  Non-recurring
charges
  Recurring
charges

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Cross-Connect—Multi-mode (SC)        CC00033   1   [Pricing Information in the
following table is omitted pursuant to Rule 24b-2, filed separately with the
Securities and Exchange Commission and is subject to a confidential treatment
request.]

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19" Locking cabinet—shared cage   1                

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Power—20-amp, 120 V AC        POW00003   1                

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SUBTOTAL                    

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GRAND TOTAL                    

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        Prices shown above do not include any applicable taxes, which are the
responsibility of the Customer. This Sales Order is between Equinix, Inc. or its
wholly owned subsidiary ("Equinix") and the customer identified above
("Customer"), who wishes to order the products and/or services set forth above
(each an "Offering"). Unless otherwise agreed to by the parties in writing, each
Offering shall be delivered at the Internet Business Exchange Center identified
above ("IBX Center"). This Sales Order is governed by, and incorporated by
reference in, the Master Service Agreement having an Effective Date
of                        , 20    between Customer and Equinix (the
"Agreement"). Notwithstanding anything to the contrary in the Agreement, the
term of this Sales Order shall begin on the date this Sales Order is signed by
both parties (the "Sales Order Effective Date") and shall extend for the period
designate above as the "Term". Thereafter, this Sales Order will renew
automatically for additional terms of one (1) month each, unless either party
notifies the other party in writing at least one month prior to the end of the
then-current term that it has elected to terminate this Sales Order, in which
event this Sales Order will terminate at the end of such then-current term.
Notwithstanding anything to the contrary in the Agreement, (i) if the Agreement
expires prior to the expiration of this Sales Order's then-current term, all of
the terms and conditions of the Agreement (including limitation of liability and
indemnification) will continue to apply to this Sales Order and all Offerings,
until this Sales Order expires or is terminated, and (ii) if the Agreement is
terminated by either party prior to its full term, then this Sales Order, if
still in effect, shall terminate upon the termination of the Agreement. The
previous sentence shall apply even if the Agreement contains a provision stating
that in the event of a conflict the Agreement controls. Any change in the prices
set forth above shall be made in accordance with the Agreement, unless otherwise
stated herein. This Sales Order shall be of no force or effect unless (a) it is
executed by both parties and (b) Customer and Equinix have entered into a Master
Service Agreement under which this Sales Order is executed.

        Customer's obligation to pay the total recurring charges and the total
non-recurring charges set forth in Sections A and C shall begin on the earlier
of (a) thirty (30) days after the Sales Order Effective Date or (b) the date
Equinix delivers the Offering to Customer in response to Customer's request for
delivery of such Offering.

Customer to complete:   Equinix to complete:
Printed name: David R. Williams

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Printed name:

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Submitted by:/s/ David R. Williams

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                Authorized Signature
 
Submitted by:

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                Authorized Signature
Title: VP, Operations
 
Title:

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Date signed: 6/21/02

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Date signed:

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Billing Information:

Billing Contact Name:            

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    Billing Address:            

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  Phone Number:            

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    E-mail Address:            

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Exhibit 10.6

MASTER SERVICE AGREEMENT