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Jeff Doyle, CCIE No. 1919, is a professional services engineer and IPv6 solutions manager. Specializing in IP routing protocols, MPLS, and IPv6, Jeff has designed or assisted in the design of large-scale carrier and services provider networks in North America, Europe, and Asia.
Jennifer Carroll, CCIE No. 1402, is an indepedent network consultant in Redmond, WA. She has designed and implemented many TCP/IP networks and has developed and taught a variety of courses on routing protocols and Cisco routers.