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Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) User Manual

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Multi-Service IronWare Routing Configuration Guide

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Configuring BGP4+

Specify the AS number in which the device you are configuring resides.

After enabling BGP4+, you can add neighbors to a BGP4+ device by entering a commands such as
the following:

Brocade(config-bgp)# address-family ipv6 unicast

Brocade(config-bgp-ipv6u)# neighbor 2001:db8:e0ff:783a::4 remote-as 1001

Brocade(config-bgp-ipv6u)# neighbor 2001:db8:e0ff:783a::5 remote-as 1001

These commands add two neighbors with global IPv6 addresses 2001:db8:e0ff:783a::4 and
2001:db8:e0ff:783a::5 in AS 1001.

NOTE

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

This section provides minimal information about adding BGP4+ neighbors, because its focus is to
provide information about configuring BGP4+.

Configuring BGP4+ neighbors using global or unique local IPv6
addresses

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

For example, to add the IPv6 address 2001:db8:93e8:cc00::1 of a neighbor in remote AS 4500 to
the BGP4+ neighbor table of a device, enter the following commands:

Brocade(config-bgp)# address-family ipv6 unicast

Brocade(config-bgp-ipv6u)# neighbor 2001:db8:93e8: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.