Recommended Reading

Halabi, B., and D. McPherson, Internet Routing Architectures, Second Edition . Indianapolis, Indiana: Cisco Press; 2000.

This book is considered by many as the definitive text on BGP-4.

Stewart J.W. III. BGP4: Inter-Domain Routing in the Internet . Reading, Massachusetts: Addison Wesley Longman; 1999.

Although not Cisco-specific, Stewart's book is a handy, concise overview of BGP.