Command Line Reference Guide

10
Border Gateway Protocol IPv4 (BGPv4)
BGP is an external gateway protocol that transmits interdomain routing information within and between autonomous
systems (AS). BGP version 4 (BGPv4) supports classless inter-domain routing (CIDR) and the aggregation of routes and
AS paths. Basically, two routers (called neighbors or peers) exchange information including full routing tables and
periodically sent messages to update those routing tables.
FTOS supports BGPv4 on the S5000 switch:
NOTE: For more information about configuring the border gateway protocol (BGP), refer to the BGP chapter in the
FTOS Configuration Guide
.
This chapter contains the following sections:
BGPv4 Commands
MBGP Commands
BGP Extended Communities (RFC 4360)
BGPv4 Commands
Border Gateway Protocol (BGP) is an external gateway protocol that transmits interdomain routing information within
and between Autonomous Systems (AS). BGP version 4 (BGPv4) supports classless interdomain routing (CIDR) and the
aggregation of routes and AS paths. Basically, two routers (called neighbors or peers) exchange information including
full routing tables and periodically send messages to update those routing tables.
address-family
Enable the IPv4 multicast or the IPv6 address family.
S5000
Syntax
address-family [ipv4 multicast| ipv6unicast]
Parameters
ipv4 multicast Enter BGPv4 multicast mode.
ipv6 unicast Enter BGPv6 mode.
Defaults Not configured.
Command Modes ROUTER BGP
253