Riverbed to Demonstrate WAN Optimization Software on HP ProCurve Switching Infrastructure

SAN FRANCISCO, CA, May 18 (MARKET WIRE) --
Riverbed Technology (NASDAQ: RVBD), the IT infrastructure performance
company for networks, applications and storage, today announced that as
part of its participation in the HP ProCurve Open Network Ecosystem (HP
ProCurve ONE), Riverbed(R) will be demonstrating at Interop Las Vegas
2009 the Riverbed Optimization System (RiOS(R)), which powers its
Steelhead(R) product family, running on the HP ProCurve ONE Services zl
module.

Riverbed WAN optimization solutions liberate enterprises from common IT
constraints by dramatically improving application performance, enabling
consolidation without disruption, and providing end-to-end network and
application visibility. The HP ProCurve ONE Services zl module is a blade
for the HP ProCurve Switch 5400zl and 8200zl series that consolidates
partner applications onto a common platform, enabling reduced costs and
optimizing rack space. Riverbed WAN optimization running on HP ProCurve
infrastructure provides customers with a next-generation data center
solution that allows CIOs to reconcile the conflicting demands of serving
distributed employees with ever increasing data management requirements
with centralized IT. The joint solution should be available in the second
half of 2009.

"The inclusion of RiOS in HP ProCurve ONE gives customers moving to
next-generation data center models a solution that can reduce costs and
the complexity of network management, while improving application
performance and employee productivity," said Eric Wolford, senior vice
president of marketing and business development at Riverbed. "We've been
working closely with HP on product development to ensure the integration
of our solutions meets the transforming needs of the global enterprise.
Attendees at Interop will be able to see our tight integration in action."

"Customers want to reduce the costs and the complexity associated with
network management. The Riverbed Optimization System combined with HP
ProCurve ONE provides this while improving application performance," said
Matt Zanner, worldwide director, Data Center Solutions, HP ProCurve. "The
integration of Riverbed RiOS with HP ProCurve's switching infrastructure
delivers business value by increasing the efficiency of WAN optimization
for our customers."

Riverbed will demonstrate RiOS running on the HP ProCurve ONE Services zl
module at Interop. In addition to viewing the demo, attendees can learn
more about WAN optimization solutions at several Interop sessions
featuring Riverbed spokespersons discussing a wide range of topics,
including the evolution of application delivery, next-generation data
centers, and the competitive landscape of WAN optimization solutions.

Forward Looking Statements

This press release contains forward-looking statements, including
statements relating to the expected demand for Riverbed's products and
services, including in association with HP ProCurve, statements regarding
the expected benefits to customers of integrating the Riverbed
Optimization System with HP ProCurve, and statements relating to
Riverbed's ability to meet the needs of distributed organizations,
including in association with HP ProCurve. These forward-looking
statements involve risks and uncertainties, as well as assumptions that,
if they do not fully materialize or prove incorrect, could cause our
results to differ materially from those expressed or implied by such
forward-looking statements. The risks and uncertainties that could cause
our results to differ materially from those expressed or implied by such
forward-looking statements include our ability to react to trends and
challenges in our business and the markets in which we operate; our
ability to anticipate market needs or develop new or enhanced products to
meet those needs; the adoption rate of our products; our ability to
establish and maintain successful relationships with our distribution
partners; our ability to compete in our industry; fluctuations in demand,
sales cycles and prices for our products and services; shortages or price
fluctuations in our supply chain; our ability to protect our intellectual
property rights; general political, economic and market conditions and
events; and other risks and uncertainties described more fully in our
documents filed with or furnished to the Securities and Exchange
Commission. More information about these and other risks that may impact
Riverbed's business are set forth in our Form 10-Q filed with the SEC on
April 30, 2009. All forward-looking statements in this press release are
based on information available to us as of the date hereof, and we assume
no obligation to update these forward-looking statements. Any future
product, feature or related specification that may be referenced in this
release are for information purposes only and are not commitments to
deliver any technology or enhancement. Riverbed reserves the right to
modify future product plans at any time.

About Riverbed

Riverbed Technology is the IT infrastructure performance company. The
Riverbed family of wide area network (WAN) optimization solutions
liberates businesses from common IT constraints by increasing application
performance, enabling consolidation, and providing enterprise-wide network
and application visibility -- all while eliminating the need to increase
bandwidth, storage or servers. Thousands of companies with distributed
operations use Riverbed to make their IT infrastructure faster, less
expensive and more responsive. Additional information about Riverbed
(NASDAQ: RVBD) is available at www.riverbed.com.

Riverbed Technology, Riverbed, Steelhead, RiOS, Interceptor, Think Fast,
the Riverbed logo, Mazu, Profiler and Cascade are trademarks or registered
trademarks of Riverbed Technology, Inc. All other trademarks used or
mentioned herein belong to their respective owners.

MEDIA CONTACT
Kristalle Ward
Riverbed Technology
415-247-8140
Email Contact

INVESTOR RELATIONS CONTACT
Renee Lyall
Riverbed Technology
415-247-6353
Email Contact

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