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Yahoo! Brasil Boosts Network Reliability and Performance with Juniper Networks

M-Series to Help Launch New Service Strategy

SUNNYVALE, Calif., September 29, 2004 - Juniper Networks, Inc. (Nasdaq: JNPR) today announced that Yahoo! Brasil, one of South America's largest Internet portals, has deployed its M-series platform to increase the performance, reliability and security of the network. This project, developed in partnership with the system integrator M13, is improving the navigation experience of all Brazilian Yahoo! users.

"The M-series platform is the foundation of our long-term strategy to transition to a value-added services model," said Daniel Carvalho, marketing manager at Yahoo! "In addition to increasing network performance, competitive pricing and one-day implementation, the M-series platform provides the security and scalability features that elevate us to the next level."

The M-series platforms are designed to offer secure, scalable and highly reliable IP services in high-speed networks. The platform reduces time to market for new IP services by lowering capital costs, simplifying operational support, as well as streamlining design, testing and network implementation processes.

"With the completion of the first Juniper Networks installation in the Yahoo! network, we are committed to helping Yahoo! Brasil reach its service and revenue goals," said Tim Lambie, vice president of sales, Americas International at Juniper Networks.

About Yahoo! Brasil

Yahoo! Brasil is one of the most important Internet companies in the country; it offers to the clients a wide range of products and services including search, shopping, relationship channels, jobs, news, etc.

About Yahoo!

Yahoo! is the number 1 Internet global brand and website that receives the most visits worldwide. With central offices in Sunnyvale, California, the Yahoo's global network includes 25 worldwide properties and it is available in 13 languages. Yahoo! Inc. is one of the main worldwide online product and service supplier to customers and businesses and it has approximately 274 million users.

About M13

M13 is a solution integrator specialized in cutting-edge technology and IP networks. It is an innovative organization, aligned to the needs of its customers, seeking cost reduction and fast service delivery, vendor-free. In its background of projects, it took part in the implementation of the first Internet access meshes in Brazil. It participates in highly complex technological projects in data, voice, image communication infra-structure, security and converged networks. M13 stands out as one of the leading integrators in the country for its expertise. For further information, please visit www.m13.com.br.

About Juniper Networks, Inc.

Juniper Networks transforms the business of networking by creating competitive advantage for our customers with superior networking and security solutions. Juniper Networks is dedicated to customers who derive strategic value from their networks, including global network operators, enterprises, government agencies and research and educational institutions. Juniper Networks' portfolio of networking and security solutions supports the complex scale, security and performance requirements of the world's most demanding mission critical networks. Additional information can be found at www.juniper.net.

Juniper Networks, the Juniper Networks logo, NetScreen, NetScreen Technologies, the NetScreen logo, NetScreen-Global Pro, ScreenOS, and GigaScreen are registered trademarks of Juniper Networks, Inc. in the United States and other countries.

M-series is trademark of Juniper Networks, Inc.