Chapter 40. BORDER GATEWAY PROTOCOL (BGP/BGP-4)

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Modern TCP/IP internetworks are composed of autonomous systems (ASes) that are run independently. Each may use an interior routing protocol such as Routing Information Protocol (RIP), Open Shortest Path First (OSPF), Interior Gateway Routing Protocol (IGRP), or Enhanced Interior Gateway Routing Protocol (EIGRP) to select routes between networks within the AS. To form larger internetworks, and especially the "mother of all internetworks," the Internet, these ASes must be connected together. This requires use of a consistent exterior routing protocol that all ASes can agree upon, and in today's TCP/IP, ...

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