About the Author
Mark Lewis, CCIE No. 6280, is technical director of MJL Network Solutions, a provider of internetworking solutions that focuses on helping enterprise and service provider customers implement leading-edge technologies, including VoIP/IP telephony solutions. Mark specializes in next-generation/advanced network technologies and has extensive experience designing, deploying, and migrating large-scale IP/MPLS networks and VoIP/IP telephony solutions. He is an active participant in the IETF, a member of the IEEE, and a Certified Cisco Systems Instructor (CCSI).
Mark is the author of the Cisco Press titles Comparing, Designing, and Deploying VPNs (ISBN 1-58705-179-6) and Troubleshooting Virtual Private Networks (ISBN 1-58705-104-4). ...
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