H3C Technologies H3C S7500E Series Switches - Manual (Page 204)

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BGP Configuration
The Border Gateway Protocol (BGP) is a dynamic inter-AS Exterior Gateway Protocol.
When configuring BGP, go to these sections for information you are interested in:
z BGP Overview
z BGP Configuration Task List
z Configuring BGP Basic Functions
z Controlling Route Generation
z Controlling Route Distribution and Reception
z Configuring BGP Route Attributes
z Tuning and Optimizing BGP Networks
z Configuring a Large Scale BGP Network
z Configuring BGP GR
z Enabling Trap
z Enabling Logging of Peer State Changes
z Configuring BFD for BGP
z Displaying and Maintaining BGP
z BGP Configuration Examples
z Troubleshooting BGP
The term “router” refers to a router or a Layer 3 switch, and BGP refers to BGP-4 in this document.
BGP Overview
There are three early BGP versions, BGP-1 (RFC1105), BGP-2 (RFC1163) and BGP-3 (RFC1267).
The current version in use is BGP-4 (RFC 4271), which is the defacto Internet exterior gateway
protocol used between ISPs.
The characteristics of BGP are as follows:
z Focusing on the control of route propagation and the selection of optimal routes rather than the
route discovery and calculation, which makes BGP, an exterior gateway protocol different from
interior gateway protocols such as OSPF and RIP
z Using TCP to enhance reliability
z Supporting CIDR