Riverbed Technology (RVBD)

NOTICES

27.1. Addresses; Manner of Delivery.

Except as otherwise expressly provided in this Lease, any bills, statements, consents, notices, demands, requests or other communications that a party desires or is required to give to the other party under this Lease shall (1) be in writing, (2) be deemed sufficiently given if (a) delivered by hand (against a signed receipt), (b) sent by registered or certified mail (return receipt requested), or (c) sent by a nationally-recognized overnight courier (with verification of delivery), and (3) be addressed in each case:

if to Tenant (prior to the Commencement Date), at:

501 Second Street, Suite 410

San Francisco, CA 94107

Attn: Randy Gottfried

if to Tenant (following the Commencement Date), at:

501 Second Street, Suite 410

San Francisco, CA 94107

Attn.: Randy Gottfried

and

One Penn Plaza

New York, NY 10119

Attn.: George Jabrine

if to Landlord, at:

c/o Vornado Office Management LLC

888 Seventh Avenue

New York, New York 10119

with a copy to:

Vornado Realty Trust

210 Route 4 East

Paramus, New Jersey 07652

Attn: Joseph Macnow

or to such other address or addresses as Landlord or Tenant may designate from time to time on at least ten (10) Business Days of advance notice given to the other in accordance with the provisions of this Article 27. Any such bill, statement, consent, notice, demand, request, or other

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communication shall be deemed to have been given (x) on the date that it is hand delivered, as aforesaid, or (y) three (3) Business Days after the date that it is mailed, as aforesaid, or (z) on the first (1st) Business Day after the date that it is sent by a nationally-recognized courier, as aforesaid. Any such bills, statements, consents, notices, demands, requests or other communications that the Person that is the property manager for the Building gives to Tenant in accordance with the terms of this Article 27 shall be deemed to have been given by Landlord (except that Landlord, at any time and from time to time, shall have the right to terminate or suspend such property manager’s right to give such bills, statements, consents, notices, demands, requests or other communications to Tenant by giving not less than five (5) days of advance notice thereof to Tenant).

Article 28