Press Release

Redback Networks to Hold Analyst/Investor Briefing at Supercomm in Chicago

SAN JOSE, Calif., June 9, 2004 – Redback Networks Inc. (NASDAQ: RBAK), a leading provider of next-generation broadband networking systems, today announced that Kevin DeNuccio, chief executive officer and president, Thomas L. Cronan III, senior vice president of finance and administration and chief financial officer, and Ravi Chandra, senior vice president of engineering, will be presenting at a financial analyst and investor briefing held Wednesday, June 23 during the Supercomm conference held in Chicago. Those interested in attending should send an email to investor_relations@redback.com with “Supercomm Briefing” in the subject line. There will not be an audio or web broadcast of this event.

About Redback Networks Redback Networks Inc., a leading provider of next-generation broadband networking equipment, enables carriers and service providers to build third-generation Smart Broadband Networks that can profitably deliver simplified, personalized, portable subscriber services to consumers and businesses. The company's carrier-class, consumer-scale SmartEdge® Router and Service Gateway platforms for Consumer IP combine subscriber management systems and edge routing in conjunction with the NetOp™ Element and Policy Manager platform provide a powerful, flexible infrastructure for managing both subscribers and 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.

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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.