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F5 Networks is Declared the Worldwide Market Share Leader by Leading Research Firm

F5 takes the No. 1 position in the Layer 4-7 fixed switch market, according to the latest Dell'Oro Group Report

F5 Networks, Inc. (NASDAQ: FFIV), the leading provider of Application Traffic Management products, today announced that it has landed the No. 1 worldwide market share position for the Layer 4-7 (L4-7) Fixed Server Load Balancing1 market, based on the latest Dell'Oro Group Report2.

"F5's continued growth in the market is fueled by our intense focus on the successful delivery of enterprise applications," said Erik Giesa, Vice-President of Product Management and Marketing at F5 Networks. "Our Application Traffic Management solutions enable customers to apply intelligent traffic management decisions to more types of applications - ensuring the most successful outcome of their investments and increasing ROI."

According to the report, F5 has 32.3% market share based on revenue and experienced a 14.3% increase in revenue over the previous quarter ending March 31, 2004. F5 reported the highest quarterly revenue and percentage growth in the fixed segment.

1 Layer 4-7 Fixed Server Load Balancing (SLB) definition: Switches specially designed to switch network or Internet traffic optimally between a group of servers and must load balance traffic based on L4/L7 information (e.g. TCP port, URL, Cookie). Load balancing functionality must be native to the switch.

2 Source: Dell'Oro CY Q2 2004 Market Share Report (Layer 4-7) Ethernet Switch Report, August 18, 2004.

About F5 Networks

F5 enables organizations to successfully deliver business-critical applications and gives them the greatest level of agility to stay ahead of growing business demands. As the pioneer and global leader in Application Traffic Management, F5 continues to lead the industry by driving more intelligence into the network to deliver advanced application agility. F5 products ensure the secure and optimized delivery of applications to any user - anywhere. Through its flexible and cohesive architecture, F5 delivers unmatched value by dramatically improving the way organizations serve their employees, customers and constituents, while lowering operational costs. Over 6,000 organizations and service providers worldwide trust F5 to keep their businesses running. The company is headquartered in Seattle, Washington with offices worldwide. For more information go to

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