Press Release

Completel Deploys Redback SmartEdge Service Gateway Platform Across France 

Leading French Alternative Business Carrier Chooses Redback To Provide Metro Ethernet Services

SAN JOSE, Calif., October 18, 2005 – Redback Networks Inc. (NASDAQ: RBAK), a leading provider of next-generation broadband networking systems, today announced that the company’s SmartEdge® Service Gateway platform has been chosen by Completel (Euronext Paris: CPT), a leading alternative business carrier in France, for the large-scale expansion of it’s national network.

Completel provides telecommunications services to medium and large corporations, public institutions, carriers and ISPs. Completel is significantly enlarging its addressable market through the deployment of a national fiber backbone to expand its footprint from 9 to 80 metropolitan areas in France, while also leveraging the opportunity arising from local loop unbundling.

Redback’s SmartEdge Service Gateway system will be deployed to perform key functions within the new Completel infrastructure. The SmartEdge platform will support Metro Ethernet aggregation of customer traffic generated from DSLAM (Digital Subscriber Line Access Multiplexer) deployments via high density Gigabit Ethernet links. In addition, the SmartEdge platform will serve as the edge routers supporting Layer 3 IP VPN and VoIP services.

“Our network extension will allow us to control our fiber and DSL networks from end-to-end. Therefore, we will continue to serve our customers with a suite of innovative IP and Ethernet based services,” said Jean Marie Le Monze, CTO of Completel. “Following our rigorous selection process, we selected the Redback SmartEdge Service Gateway for Ethernet scalability, reliability, and flexibility to provide personalized broadband services.”

“The carrier class Ethernet aggregation implementation of the SmartEdge Service Gateway enables Completel to define new differentiating service offerings onto its local fiber access network,” said Magnus Almquist, Redback’s vice president of sales and operations in the Europe, Middle-East and Africa region. “Redback is pleased to be working closely with Completel on such a significant project.”

About Redback Networks

Redback Networks Inc., a leading provider of next-generation IP broadband networking equipment, enables carriers and service providers to build Smart Broadband Networks that can deliver simplified, personalized and portable subscriber services to consumers and businesses. The company's carrier-class, consumer-scale SmartEdge Router and Service Gateway platforms combine subscriber management, IP edge routing and ethernet aggregation functions. In conjunction with the NetOp™ Element and Policy Manager platforms they provide a powerful, flexible infrastructure for managing both residential and business users and deploying a variety of value-added 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.

# # #

REDBACK and SmartEdge are trademarks registered at the U.S. Patent and Trademark Office and in other countries. NetOp is a trademark of Redback Networks Inc. All other products or services mentioned are the trademark, service marks, registered trademarks or registered service marks of their respective owners.

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

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 Completel enlarging its addressable market through the deployment of a national fiber backbone to expand its footprint to 80 metropolitan areas in France, while also leveraging the opportunity arising from local loop unbundling, including the deployment of the SmartEdge Service Gateway platform to perform key functions within the new Completel infrastructure, such as supporting Metro Ethernet aggregation of customer traffic generated from DSLAM (Digital Subscriber Line Access Multiplexer) deployments via high density Gigabit Ethernet, serving as the edge routers supporting Layer 3 IP VPN and VoIP services, and controlling Completel’s fiber and DSL deployments end to end. 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 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.