About the Authors

Contributing Authors

Dan Keller, CCIE #6489, currently works at Qwest Communications as a senior network architect focusing on WAN design. Dan lives in Huntington Beach, California. Dan contributed Chapter 7, "WAN Protocols and Technologies: Integrated Services Digital Network (ISDN)"

Galina Diker Pildush, CCIE #3176, CCSI, is the president and a senior consultant at Advanced Communications Experts (ACE), Inc. She provides training and course development for Global Knowledge Network, Inc., the largest Cisco Learning Partner in the world. Galina is also the author of the Cisco Press title Cisco ATM Solutions . Galina lives in Toronto, Canada. She wrote Chapter 8, "WAN Protocols and Technologies: Asynchronous Transfer Mode (ATM)"

Eric Sandberg, CCIE #4355, is currently a senior network engineer for Enventis, Inc. Eric has 20 years experience in the industry and is currently designing and implementing multiservice converged networks utilizing Cisco's AVVID technology. Eric lives in Minnetonka, Minnesota. Eric wrote Chapter 6, "WAN Protocols and Technologies: Voice over X."

About the Technical Reviewers

Lawrence Broadnax is a consultant systems engineer for Clover Technologies. Lawrence has been a Cisco Certified Internet Expert (CCIE #5258) since 1999 and specializes in ATM, routers, switches, AVVID, security, VPN, IP QoS, and packet voice. Lawrence has over 12 years of experience in Networking and Distributed Systems Implementations with TELCOs, ISPs, and VARs. Lawrence has a B.S. degree in Electronic Engineering and lives in Dallas, Texas with his wife, La Tonia, and three-year-old son, Lawrence II.

Bill Kern, CCIE #5364, CCDP, is a sales engineering specialist with Qwest Communications, where he provides third-level technical support for Qwest's sales force specializing in Internet access and network-based VPN services. Bill has more than 20 years of networking experience, including the design, implementation, and troubleshooting of multiprotocol networks, as well as traditional mainframe environments. He has extensive experience with routing protocols and switching services, as well as the many tools included in Cisco's networking products.

Mike Reid, CCIE #2879, has been with Cisco and the CCIE group for over 4 years. He was the full-time proctor in the Halifax CCIE lab for 3 years and is now responsible for the content and delivery of the Routing and Switching certification. Before joining Cisco, Mike spent 10 years designing, building, and managing networks in eastern Canada.

John Tiso, CCIE #5162, is one of the senior technologists of NIS, a Cisco Systems Silver Partner. He has a bachelor of science degree from Adelphi University. John also holds the CCDP certification, the Cisco Security and Voice Access Specializations, and Sun Microsystems, Microsoft, and Novell certifications. John has been published in several industry publications . He can be reached via e-mail at johnt@jtiso.com.

Sze Jee Wong, CCIE #6791, has been in the data communication industry for more than 10 years. He is currently a Senior Network Engineer with Enventis, Inc., where he helps customers with network design and implementation. In addition to his CCIE, Sze Jee also holds the following network certifications: CCNP/DP with Voice, Access, and Security Specializations, CCNA-WAN, Microsoft MCP, and Novell CNE. Sze Jee also holds a bachelor of science degree in mechanical engineering.