Riverbed to Showcase the Serverless remote office at VMWorld 2008

Pioneer in Wide-Area Data Services to Unveil the New Riverbed Services Platform Virtualized by VMware

BANGALORE – September 10, 2008 – Riverbed Technology (Nasdaq: RVBD), the technology and market leader in wide-area data services (WDS), today announced its participation at VMworld 2008, taking place Sept. 15 – 18 at the Venetian Hotel in Las Vegas, Nevada. Now in its fifth year, VMworld is a must-attend event for all IT professionals looking for actionable ideas, innovative products and best practices for virtualizing the enterprise— from the desktop to the datacenter. In its booth (#1240), Riverbed® will showcase the enhanced features of its recently announced Riverbed Services Platform (RSP), a virtualized partition within the Riverbed Steelhead® appliances. Steelhead appliances accelerate the performance of applications between data centers, remote offices and mobile workers by five to 50 times and in some cases up to 100 times.

Riverbed recently announced an OEM agreement to embed VMware’s technology as the preferred virtualization platform for the RSP. With VMware running on the Steelhead appliances, enterprises can further consolidate their IT infrastructure by running up to five remote office virtual edge services, without the need for separate dedicated servers. This approach will allow them to improve asset utilization, operational efficiency and business agility, while ensuring end-user satisfaction. Services currently available for deployment on the RSP include streaming media, print services and DNS/DHCP/IPAM.

“Riverbed WDS makes it possible for companies to consolidate IT and improve backup and replication processes to ensure data integrity, while improving staff productivity and collaboration,” said Alan Saldich, vice president of product marketing and alliances. “Riverbed has over 4,500 customers that have deployed the award-winning Steelhead appliances. We are providing these customers with an avenue to further minimize the hardware infrastructure footprint at the branch office.”

Steelhead Products
Riverbed WDS solutions enable organizations of all sizes to overcome a host of severe problems, including poor application performance and insufficient bandwidth at remote sites. By speeding the performance of applications between data centers, remote offices and mobile workers by five to 50 times and in some cases up to 100 times, the Riverbed award-winning Steelhead WDS products enable companies to consolidate IT, improve backup and replication processes to ensure data integrity, and improve staff productivity and collaboration. Steelhead products have been deployed in organizations ranging from the world’s largest corporations with offices around the globe to small companies with a couple of sites that are just miles apart. To learn more, view Riverbed’s demo: www.riverbed.com/pr/jack.

Forward Looking Statements
This press release contains forward-looking statements, including statements relating to the expected demand for Riverbed's products and services, and statements relating to Riverbed’s ability to meet the needs of distributed organizations. 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 July 29, 2008. 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 technology and market leader in wide-area data services (WDS) solutions for companies worldwide. By enabling application performance over the wide area network (WAN) that is orders of magnitude faster than what users experience today, Riverbed is changing the way people work, and enabling a distributed workforce that can collaborate as if they were local. Additional information about Riverbed (Nasdaq: RVBD) is available at www.riverbed.com.

Riverbed Technology, Riverbed, Steelhead, RiOS, Interceptor, and the Riverbed logo 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
kristalle.ward@riverbed.com

INVESTOR RELATIONS CONTACT
Renee Lyall
Riverbed Technology
415-247-6353
Renee.Lyall@riverbed.com