Version 6.8 119 Mediant MSBR
Configuration Guide 20. IPv6 Routing
20.4 Border Gateway Protocol (BGP) for IPv6
BGP is a standardized exterior gateway protocol (EGP) for exchanging routing and
reachability information between routers on different Autonomous Systems (AS’s) in large
scale, internet provider and public internet networks.
BGP does not use the metrics used by IGP protocols (such as RIP, OSPF, EIGRP, ISIS),
however makes its routing decisions based on paths, network policies and custom rules
configured by network administrators.
BGP is more stable and much less “chatty” protocols than the common IGP protocols, and
does not form adjacencies unless specifically configured. The formed adjacencies are
connection oriented and based on TCP connections.
BGP is the main routing protocol of internet service providers and the Internet.
20.4.1 Configuring BGP
The following describes the commands for configuring BGP.
20.4.1.1 Main options for Address-Family Level Configuration
Command Description