Riverstone Networks Debuts Programmable Hardware Architecture for Evolving Metro Services; First Products Offer Full MPLS Implementation over Gigabit Ethernet

Business Wire, April 23, 2001

Part Numbers and Availability

The following products will be available for ordering within 60 days:

-- G3M-GBCMM-02 RS3000 2-port MPLS GBIC Module

-- G8M-GBCMM-02 RS8x00 2-port MPLS GBIC Module

-- R38-GBCMM-04 RS38000 4-port MPLS GBIC Module

About Riverstone Networks

Riverstone Networks, Inc. (Nasdaq:RSTN) builds routers that convert raw bandwidth into profitable services for Metropolitan Area Networks. Riverstone's products enable the creation of profitable services and the delivery of these services over next generation and legacy network including Gigabit Ethernet, SONET/SDH, T1/E1, T3/E3 and DWDM. Riverstone products bring together fourth-generation ASICs, battle tested routing software and unparalleled media versatility to deliver comprehensive solutions for Metropolitan Area Networks. Riverstone's products are deployed in more than 40 countries and in some of the world's largest networks-including British Telecom, Genuity, MCI WorldCom, MAE West Ames, EarthLink, NTT, and Telefonica. For more information, please visit our Web site at http://www.riverstonenet.com

Except for the historical information contained herein, the matters set forth in this press release, including the role of Riverstone's new products in the future of metro network deployments, and the ability of the new products to create and sell business services, attract a broader customer base and guarantee the broadest customer reach possible, are forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements speak only as of the date hereof and are subject to risks and uncertainties that may cause actual results to differ materially. These risks and uncertainties include, but are not limited to, acceptance and interoperability of Riverstone's new products by customers, manufacturing difficulties, possible delays in the release of the new products, the impact of competitive products, and other risks detailed from time to time in Riverstone Networks' SEC reports, including its final prospectus dated February 15, 2001. Riverstone Networks disclaims any intent or obligation to update or revise these forward-looking statements.

Note to Editors: Riverstone Networks is a trademark of Riverstone Networks, Inc. All other trademarks, service marks, and trade names belong to their respective owners.