Adding bgp4+ neighbors using link-local addresses, Adding bgp4+ neighbor – Brocade BigIron RX Series Configuration Guide User Manual

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BigIron RX Series Configuration Guide

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Configuring BGP4+

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Configuring BGP4+ neighbors using global or site-local
IPv6 addresses

To configure BGP4+ neighbors using global or site-local IPv6 addresses, you must add the IPv6
address of a neighbor in a remote AS to the BGP4+ neighbor table of the local switch. You must
repeat this procedure for each neighbor that you want to add to a local switch.

For example, to add the IPv6 address 2011:f3e9:93e8:cc00::1 of a neighbor in remote AS 4500 to
the BGP4+ neighbor table of a switch, enter the following commands.

BigIron RX(config-bgp)# address-family ipv6 unicast

BigIron RX(config-bgp-ipv6u)# neighbor 2011:f3e9:93e8:cc00::1 remote-as 4500

Syntax: neighbor <ipv6-address> remote-as <as-number>

NOTE

The example above adds an IPv6 neighbor at the BGP4+ unicast address family configuration level.
This neighbor, by default, is enabled to exchange BGP4+ unicast prefixes. However, if you add an
IPv6 neighbor while at the global BGP configuration or IPv4 BGP unicast address family
configuration level, the neighbor will not exchange BGP4+ unicast prefixes until you explicitly enable
it to do so by entering the neighbor <ipv6-address> | <peer-group-name> activate command at the
BGP4+ unicast address family configuration level.

The ipv6-address parameter specifies the IPv6 address of the neighbor. You must specify the
ipv6-address parameter in hexadecimal using 16-bit values between colons as documented in RFC
2373.

The as-number parameter indicates the number of the AS in which the neighbor resides.

To delete the neighbor from the BGP4+ neighbor table, enter the no form of this command.

Adding BGP4+ neighbors using link-local addresses

To configure BGP4+ neighbors that use link-local addresses, you must do the following:

Add the IPv6 address of a neighbor in a remote AS to the BGP4+ neighbor table of the local
switch.

Identify the neighbor interface over which the neighbor and local switch will exchange prefixes.

Configure a route map to set up a global next hop for packets destined for the neighbor.

Adding BGP4+ neighbor

To add the IPv6 link-local address fe80:4398:ab30:45de::1 of a neighbor in remote AS 1000 to the
BGP4+ neighbor table of a switch, enter the following commands.

BigIron RX(config-bgp)# address-family ipv6 unicast

BigIron RX(config-bgp-ipv6u)# neighbor fe80:4398:ab30:45de::1 remote-as 1000

Syntax: neighbor <ipv6-address> remote-as <as-number>

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