Press Release

Redback Networks Schedules Web Cast and Conference Call for Q2 2005 Results on July 20 

SAN JOSE, Calif, July 7, 2005, Redback Networks Inc. (NASDAQ: RBAK), will announce financial results of its second quarter of 2005 on July 20, 2005. In a conference call and live audio web cast, executive management will discuss the second quarter results.

The details of the call and web cast are as follows:

Date: Wednesday, July 20, 2005

Time: 1:45 p.m. PT/2:45 MT/3:45 CT/4:45 ET

Dial-in phone number: 1-847-619-6819 (domestic and international)

Web cast: You can also participate in the conference call via your computer by registering your name on Redback's Investor Center at: http://ir.redback.com

Telephone Replay available one hour after conclusion of call through July 27, 2005.

Dial-in: 1-630-652-3000 Passcode: 12160037

To ensure that the conference begins in a timely manner, please dial in 10 minutes prior to the scheduled start time.

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 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, edge routing and metro ethernet aggregation functions and, 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 is a trademark registered at the U.S. Patent and Trademark Office and in other countries.