Press Release

KPN Selects Lucent Technologies and Redback Networks to Support its Video on Demand Service Lucent Worldwide Services supplies and maintains IPTV equipment to support new services delivery for KPN´s customers

MURRAY HILL, N.J. / HILVERSUM, February 28, 2006- The Netherlands – Lucent Technologies (NYSE: LU) has been selected by KPN to provide the Dutch operator with equipment and services for advanced IPTV services. Under the contract, Lucent Worldwide Services is integrating Redback Networks’ (NASDAQ: RBAK) IPTV hardware and software into KPN´s broadband access network and conducting maintenance services for the IPTV section of the network.

KPN plans to roll-out countrywide IPTV services for their ADSL customers, thus enhancing their triple play strategy. In that way, KPN will further enhance their position in the Internet and TV market. Already today KPN is providing their customers with a digital wireless TV service.

KPN’s new VoD service, an ADSL2+ based IP video service, will be available in the first half of 2006.

Lucent is supplying SmartEdge® Service Gateways from Redback Networks Inc., whose SmartEdge Service Gateway systems have been recently added to LWS´ services portfolio to provide IP aggregation infrastructure for KPN’s new Video on Demand (VoD) service.

Redback’s SmartEdge platform performs the high density and high bandwidth Ethernet aggregation including 10 Gigabit Ethernet support. Combined with the carrier class routing and consumer scale subscriber management functions, KPN is able to offer highly personalized video services to its extensive customer base.

"KPN and Lucent Technologies have cooperated closely on a large number of projects in recent years", says Joost Farwerck, Director Wholesale Services & Operations at KPN. "Also, Lucent Worldwide Services has provided us world-class service and support. It is for these reasons that we selected Lucent as a supplier of third party IPTV equipment and for servicing the IPTV part of our access network. Our IPTV initiative is very ambitious, as we want to offer our customers something quite different from the regular broadcasting offerings, through new services like Video on Demand which are coming soon. This requires a stable and reliable network infrastructure which Lucent will provide.”

"With this agreement, LWS underlines its expertise in designing, integrating and maintaining IPTV solutions for broadband networks. We are steadily expanding our portfolio with state of the art third-party solutions, which enable our clients to grow and add new services to their offerings”, says Huub de Klerk, vice president Sales North Europe at Lucent Technologies. "We are looking forward to collaborate with KPN to make this project a success.”

“With this agreement, we are pleased that Lucent and KPN have selected our proven SmartEdge platform to provide reliable video-on-demand services to KPN’s subscribers in the Netherlands,” said Georges Antoun, senior vice president of worldwide field operations at Redback Networks.

About KPN

KPN offers telecommunication services to both consumers and businesses. The core activities are telephony, Internet and television services in the Netherlands, mobile telecom services in Germany, the Netherlands and Belgium and data services in Western Europe. KPN is market leader in the major segments of the Dutch telecom market and is actively growing market share in the new IP and DSL markets. Through E-Plus and BASE, KPN occupies a strong position in the mobile markets in Germany and Belgium respectively.

As of December 31, 2005, KPN's 29,286 employees served 6.9 million fixed-line subscribers and 2.2 million Internet customers in the Netherlands as well as approximately 21 million mobile customers in Germany, the Netherlands and Belgium. KPN was privatized in 1989. KPN's shares are listed on the stock exchanges in Amsterdam, New York, London and Frankfurt.

About Redback Networks Inc.

Redback Networks Inc., a leading provider of next-generation broadband networking equipment, enables carriers and service providers to build Smart Broadband Networks that are personalized, adaptive and efficient. The Smart Broadband Network provides advanced IP based subscriber services to consumers, businesses and wholesale customers. The company's carrier-class, scalable SmartEdge product family combines carrier class edge routing, advanced subscriber management and high density Ethernet aggregation functions. In conjunction with the NetOp™ Element and Policy Manager platforms the SmartEdge family provides a powerful and flexible infrastructure solution that enables delivery of next-generation Broadband IP services.

Founded in 1996 and headquartered in San Jose, Calif., with sales and technical support centers located worldwide, Redback Networks maintains a growing and global customer base of more than 500 carriers and service providers, including major local exchange carriers (LECs), inter-exchange carriers (IXCs), PTTs, service providers and ISPs. For more information, visit Redback Networks at www.redback.com.

About Lucent Technologies

Lucent Technologies designs and delivers the systems, services and software that drive next-generation communications networks. Backed by Bell Labs research and development, Lucent uses its strengths in mobility, optical, software, data and voice networking technologies, as well as services, to create new revenue-generating opportunities for its customers, while enabling them to quickly deploy and better manage their networks. Lucent's customer base includes communications service providers, governments and enterprises worldwide. For more information on Lucent Technologies, which has headquarters in Murray Hill, N.J., USA, visit http://www.lucent.com.

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Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995 – Redback Networks

The statements contained in this press release that are not purely historical are forward-looking statements within the meaning of Section 21E of the Securities and Exchange Act of 1934, as amended, including statements regarding Redback Networks’ expectations, beliefs, intentions or strategies regarding the future and including, without limitation, statements regarding whether Lucent Worldwide Services will supply and integrate Redback Networks’ hardware and software into KPN’s broadband access network and the expected benefits of Redback’s products to KPN. All forward-looking statements included in this document are based upon information available to Redback Networks as of the date hereof, and Redback Networks assumes no obligation to update any such forward-looking statements. Forward-looking statements involve risks and uncertainties, which could cause actual results to differ materially from those projected. These risks and other risks relating to Redback Network’s business and its sales efforts through partners are set forth in the documents filed by Redback Networks with the Securities and Exchange Commission (SEC), specifically the most recent report on Form 10-K, Form 10-Q, Form 8-K, Redback’s Registration Statement on Form S-3 (File No. 333-114352), and amendments thereto, and the other reports filed from time to time with the SEC.