Age: 66 Director Since: 1998 Position: Lead Independent Director Board Committees: Chair Management Development and Compensation Committee Member Corporate Governance and Nominating Committee Other Public Company Boards: None Experience: Partner Emeritus at Charles River Ventures ( CRV ), a venture capital firm; General Partner at CRV for more than 20 years, including more than 10 years as the Managing Partner Executive Vice President and General Manager of Ascend Communications, Inc. from 1998 to 1999 President and Chief Executive Officer of Stratus Computer, Inc. from 1997 until it was acquired by Ascend Communications in 1998 Executive Vice President and General Manager of the Internet Telecom Business Group at Bay Networks, Inc. from 1995 to 1997 President and Chief Executive Officer of Xylogics, Inc. from 1993 until it was acquired by Bay Networks in 1995 Holds a B.S.E.E. in electrical engineering from Bucknell University, an M.E.E. in electrical engineering from Cornell University, and an M.B.A. from Northeastern University Key Skills and Qualifications: Mr. Sachs brings exceptionally strong business judgment to our board, honed through his experience developing business strategy as a senior executive and in venture capital. Mr. Sachs has an incomparable understanding of our business, gained through his service on the board of directors of the Company, and of the global business environment. In addition, Mr. Sachs has significant business leadership experience, financial expertise, and knowledge with respect to information technology and security, having served as a technology company CEO and as a board member of several computer networking companies.