RIVERBED ANNOUNCES STEELHEAD MOBILE 3.0

Mobile Solution Complements Broader Steelhead Appliance Deployment and Speeds Enterprise IT Infrastructure Performance; Provides Acceleration for Windows 7 and 64-bit Systems

SAN FRANCISCO – November 02, 2009 – Riverbed Technology (NASDAQ: RVBD), the IT infrastructure performance company for networks, applications and storage, today announced upcoming enhancements to its Mobile WAN optimization solution to address the productivity challenges global organizations face when managing remote and mobile workforces. Riverbed® Steelhead® Mobile increases employee productivity while on the road, working from home or connected wirelessly in the office by providing application performance improvements. With this release, Riverbed will provide acceleration for Windows 7 and 64-bit systems for mobile end users. In addition, organizations will be able to take advantage of improved flexibility and simplified manage ment functionality to provide mobile workers with accelerated performance no matter where they are working throughout the world.

"As companies focus on consolidating their data through private cloud initiatives, the distance between their employees and critical data is growing--employees are becoming more mobile, working from a variety of locations outside of the office. This means that as centralization of data and IT infrastructure continues, remote access is becoming more of a challenge," said Eric Wolford, senior vice president of marketing and business development at Riverbed. "With Steelhead Mobile 3.0, we are able to deliver to customers a solution that not only accelerates important Windows 7 and 64-bit applications while on the road, but also complements their broader Steelhead appliance deployment."

"Riverbed's leadership in the WAN optimization market can be attributed to product innovation and focus on creating a comprehensive WAN optimization solution. The company has maintained a focus on customer priorities and ever-changing IT requirements," said Cindy Borovick, research vice president at IDC. "Enterprise IT departments are being pressed to improve IT efficiency and employee productivity with a reduced IT budget. As more companies move forward with IT consolidation projects to cut costs, performance for end users is a concern. Mobile WAN optimization can help overcome this challenge by improving the performance of critical enterprise applications for remote and mobile workers."

Steelhead Mobile 3.0 introduces enhancements that allow organizations to provide their mobile workers with better access and performance, eliminating slow performance as a barrier to mobility.

Accelerate Windows 7 and 64-bit Systems for Mobile Users
Riverbed continues to deepen its optimization of Windows and other Microsoft applications, such as SharePoint, Office, Server and CRM, so that enterprises can provide accelerated access to and improved performance of Microsoft applications to remote and mobile workers. With Steelhead Mobile 3.0, Riverbed provides acceleration benefits to Windows 7 and 64-bit systems.

Organizations will have the ability to support Microsoft's catalog of modern operating systems and advanced platforms. Through Riverbed's comprehensive solution, companies will have the flexibility to upgrade operating systems or migrate to platforms while obtaining consistent application performance.

Web Applications – Up to 60X Faster
Enterprises are utilizing HTTP and HTTPS for everything from e-commerce to mission-critical applications. They are the underlying protocols for all Web-based applications used to communicate internally with employees and externally with partners and customers. By optimizing these protocols, users can dramatically reduce the amount of data that they need to send over the WAN, while at the same time streamlining the chatty behavior of transport and application protocols. With Mobile 3.0, as with the Steelhead appliances, these benefits are extended further to the application layer for HTTP and HTTPS users to make Web applications even faster while maintaining the preferred enterprise trust model. The common architecture of the Steelhead appliance and Steelhead Mobile gives organizations a single comprehensive solution to increase the performance of key Web-based applications.

By employing URL learning, page parsing, embedded object pre-fetching and metadata acceleration modes, Steelhead Mobile further reduces the chattiness and delays that plague enterprise Web-based applications. With these additional tools, business-critical applications used today such as SharePoint, intranet portals and Web-based document management systems, as well as Web-enabled ERP and CRM applications like SAP NetWeaver, JD Edwards and Siebel, all receive application acceleration of up to 60x.

Branch Warming – Immediate Acceleration Regardless of Location
Riverbed has extended its technological leadership by improving integration with the Steelhead appliance, allowing workers to take advantage of even more of the benefits of the Riverbed Optimization System (RiOS®) while working remotely.

With Steelhead Mobile 3.0, Riverbed introduces Branch Warming, which allows mobile and branch office users to share optimized data and experience even greater overall acceleration. By sharing the data references between the data stores of the Steelhead Mobile client and the branch office Steelhead appliance, mobile workers not only take advantage of all of the optimization benefits of the Steelhead appliance but are also able to contribute data references from their data store to help improve performance for the entire branch office, enabling "warm" performance regardless of location.

Dancker, Sellew & Douglas has approximately 40 users that have benefited from the acceleration capabilities of Steelhead Mobile for the past two years. "With Mobile 3.0 we are experiencing the same stellar acceleration that our team has grown accustomed to – for example, I have a user working in a remote office in East Syracuse that is experiencing 67% data reduction and 3X performance gains," said Michael Vassallo, Senior Network Administrator. "We've found that the new Branch Warming feature helps our users switch seamlessly from working wirelessly to connecting back to a branch office with a Steelhead appliance. It greatly improves efficiency."

Steelhead Mobile 3.0 is expected to be generally available on December 2, 2009.

Forward Looking Statements
This press release contains forward-looking statements, including statements relating to the expected demand for Riverbed's products and services, statements regarding performance results of Riverbed solutions, including Steelhead Mobile 3.0, 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 October 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 atwww.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 All other trademarks used or mentioned herein belong to their respective owners.

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Riverbed Technology
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