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F5 Extends Worldwide Market Share Lead for Application Delivery Controllers

Leading industry analyst firm cites F5 as top ADC vendor by revenue

F5 Networks, Inc. (NASDAQ: FFIV), the global leader in Application Delivery Networking, today announced that it continues to hold the number-one position in the application delivery controller (ADC) market. In the recently published Gartner report, Market Share: Application Acceleration Equipment, Worldwide, 1Q07 (June 2007), F5 leads the ADC market with a 38.3 percent share in calendar 1Q07 and increased its lead over the number-two market share holder.

In addition, F5 continues to lead in the advanced platform ADC subsegment, with a market share over 4x that of the nearest competitor. According to the report, "F5 extended its lead in the advanced platform subsegment, with a 61.2% share (up from 59.4% in 4Q06)."

F5's ADC offerings combine BIG-IP® high-performance hardware platforms and BIG-IP software for a comprehensive, advanced solution that delivers industry-leading application security, optimization, and availability. TMOS -- F5's intelligent, modular, and scalable architecture-brings unmatched capabilities to the market through its full IP application proxy, iRules™ programming language, TCP Express, and iControl® application integration interface.

"Our performance in the market clearly substantiates the effectiveness of our approach to application delivery," said Erik Giesa, VP of Product Management and Product Marketing at F5. "As the volume of Internet traffic continues to rise and enterprise application deployments increase in complexity-due to composite applications, Web 2.0 technologies, and other drivers-F5 is able to continually redefine the expectations and capabilities of Application Delivery Networking through its unified application delivery platform, array of product capabilities, and community of users and developers constantly innovating and collaborating through DevCentral."

About F5 Networks

F5 Networks is the global leader in Application Delivery Networking. F5 provides solutions that make applications secure, fast and available for everyone, helping organizations get the most out of their investment. By adding intelligence and manageability into the network to offload applications, F5 optimizes applications and allows them to work faster and consume fewer resources. F5's extensible architecture intelligently integrates application optimization, protects the application and the network, and delivers application reliability-all on one universal platform. Over 10,000 organizations and service providers worldwide trust F5 to keep their applications running. The company is headquartered in Seattle, Washington with offices worldwide. For more information, go to

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