Brocade BigIron RX Series Configuration Guide - Manual (Page 1298)

1220 BigIron RX Series Configuration Guide
53-1002484-04
Address family configuration level
46
Address family configuration level
Brocade’s implementation of BGP4+ includes a new configuration level: address family. For IPv6,
Brocade currently supports the BGP4+ unicast address family configuration level only. (For IPv4,
Brocade supports the BGP4 unicast and BGP4 multicast address family configuration levels.) The
switch enters the BGP4+ unicast address family configuration level when you enter the following
command while at the global BGP configuration level.
BigIron RX(config-bgp)# address-family ipv6 unicast
BigIron RX(config-bgp-ipv6u)#
The (config-bgp-ipv6u)# prompt indicates that you are at the BGP4+ unicast address
family configuration level.
While at the BGP4+ unicast address family configuration level, you can access several commands
that allow you to configure BGP4+ unicast routes. The commands that you enter at this level apply
only to IPv6 unicast address family only. You can generate a configuration for BGP4+ unicast routes
that is separate and distinct from configurations for IPv4 unicast routes and IPv4 BGP multicast
routes.
The commands that you can access while at the IPv6 unicast address family configuration level are
also available at the IPv4 unicast and multicast address family configuration levels. Where
relevant, this section discusses and provides IPv6-unicast-specific examples.
NOTE
Each address family configuration level allows you to access commands that apply to that particular
address family only. To enable a feature in a particular address family, you must specify any
associated commands for that feature in that particular address family. You cannot expect the
feature, which you may have configured in the BGP4 unicast address family, to work in the BGP4+
unicast address family unless it is explicitly configured in the BGP4+ unicast address family.
To exit from the IPv6 unicast address family configuration level, enter the following command.
BigIron RX(config-bgp-ipv6u)# exit-address-family
BigIron RX(config-bgp)#
Entering this command returns you to the global BGP configuration level.
Configuring BGP4+
Before enabling BGP4+ on a switch, you must enable the forwarding of IPv6 traffic on the switch
using the ipv6 unicast-routing command and enable IPv6 on at least one interface by configuring
an IPv6 address or explicitly enabling IPv6 on that interface.
NOTE
You are required to configure a router_id when running IPv6 only routing protocols.
To configure BGP4+, you must do the following:
• Enable BGP4+.
• Configure BGP4+ neighbors using one of the following methods:
• Add one neighbor at a time (neighbor uses global or site-local IPv6 address).
• Add one neighbor at a time (neighbor uses a link-local IPv6 address).