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F5 Networks Extends Its Worldwide Market Share Lead for the Layer 4-7 Ethernet Fixed Switch Market

F5 experienced the highest market share growth in the Layer 4-7 fixed switch market, according to the latest Dell'Oro Group Report

F5 Networks, Inc. (NASDAQ: FFIV), the global leader in Application Traffic Management, announced today that the Company remains the No. 1 worldwide market share leader for the Layer 4-7 (L4-7) Fixed Server Load Balancing1 market, based on the latest Dell'Oro Group Report2.

"We're pleased with F5's quarterly market share results and attribute the positive outcome to our company's consistently strong innovation across our application switches, which is driving the demand," said Erik Giesa, Vice-President of Product Management and Marketing at F5 Networks. "At F5, we understand that organizations are actively investing in the distribution of costly business-critical applications with a goal of improving their operational efficiencies. Our solutions, including our market leading BIG-IP application switches, are the underpinnings of achieving this important goal."

Capturing 33.8% market share, F5 realized the greatest market share and revenue increase quarter over quarter, in the fixed switch market. The Dell'Oro Group's results are based upon F5's calendar Q3 2004 revenue numbers, which reflect record results for the Company.

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 Q3 2004 Market Share Report (Layer 4-7) Ethernet Switch Report, November 16, 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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