James Knapp is a System Quality Assurance Engineer at Nortel Networks. He worked for several years as a Senior Support Engineer acting as one of the primary escalation paths for frame, cell, and third-layer switching, with a focus on ATM technologies. He holds Nortel Networks Certification in Routing, Switching, and Shared Media. Mr. Knapp has been involved in the networking industry for six years, during which time he has also had extensive experience with multi-protocol routing, and wide area technologies such as as frame relay and ISDN. He can be reached at jknapp@nortelnetworks.com.