Riverstone Networks Appoints Vice President of Internal Audit SANTA CLARA, Calif., Dec. 21 /PRNewswire-FirstCall/ -- Riverstone Networks (Pink Sheets: RSTN) today announced that Mark Tisdel has been appointed to serve as its Vice President of Internal Audit. In this newly created role, Mr. Tisdel is responsible for the on-going testing of the company's compliance with the internal controls requirements of the federal Sarbanes Oxley Act. He will also develop audit plans to support the continuous improvement and scalability of the Riverstone's internal controls. "We consider Mark an excellent fit with our culture and values, and we believe that staffing the internal audit role underscores Riverstone's commitment to enhance our corporate governance processes," said Roger A. Barnes, Executive Vice President of Global Operations & Chief Financial Officer. "Mark has extensive financial and operational experience that will enable him to step in and take immediate command of the internal audit responsibilities. We are pleased to have Mark join our team." Prior to joining Riverstone, Mr. Tisdel served as Senior Director of the Global Shared Service Center at PeopleSoft, Inc., overseeing all transactional processing and accounting, and assisting in the financial systems and data integration of JD Edwards. At PeopleSoft, Mr. Tisdel also held roles in Financial Planning and as a Business Unit Controller. Additionally, he has held finance positions at Warpspeed Communications, Pacific Bell Internet and GTE. Mr. Tisdel is a Certified Public Accountant and holds a BS in Accounting from Clarkson University and an MBA in Finance from Wake Forest University. About Riverstone Networks Riverstone Networks, Inc. is a leading provider of carrier-class solutions for next generation metro Ethernet networks. Riverstone's metro routers and provisioning solutions deliver the ease of use, cost effectiveness, and flexibility that carriers require in meeting their customers' networking requirements in support of voice, video, and data services. Riverstone uniquely permits carriers to offer homogeneous services across existing revenue-generating networks and new Ethernet deployments. Contact: Roger A. Barnes Executive Vice President and CFO Riverstone Networks, Inc. 408-878-6500 DATASOURCE: Riverstone Networks, Inc. CONTACT: Roger A. Barnes, Executive Vice President and CFO of Riverstone Networks, Inc., +1-408-878-6500 Web site: http://www.riverstonenet.com/

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