Press Release

Redback Networks to Present at 2nd Annual Merriman Investor Summit 

SAN JOSE, Calif., September 13, 2005 – Redback Networks Inc. (NASDAQ: RBAK), a leading provider of next-generation broadband networking systems, today announced that Thomas L. Cronan III, senior vice president of finance and administration and chief financial officer, will be presenting at the 2nd Annual Merriman Investor Summit 2005 in San Francisco, CA at the Mark Hopkins Hotel on Monday, September 19, 2005 at 12:45pm PST. A live audio-only webcast and replay of the presentation will be available at: http://www.wsw.com/webcast/mcm2/rbak/

About Redback Networks

Redback Networks Inc., a leading provider of next-generation 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 for Broadband IP combine subscriber management systems, IP edge routing and ethernet aggregation functions. In conjunction with the NetOp™ Element and Policy Manager platform it provides a powerful, flexible infrastructure for managing both residential and business users offer 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 and service providers. 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.