Jeff Doyle, CCIE No. 1919, is a professional services consultant with Juniper Networks, Inc., in Denver, Colorado. Specializing in IP routing protocols and MPLS traffic engineering, Jeff has helped design and implement large-scale Internet service provider networks throughout North America, Europe, and Asia.
Jennifer DeHaven Carroll, CCIE No. 1402, is a principal consultant with Lucent Technologies. She has planned, designed, and implemented many large networks over the past 13 years as well as developed and taught classes on theory and Cisco implementation of all IP routing protocols.