3. Enter the
address-family
command and specify the
ipv6
and
unicast
keywords to enter IPv6 address family configuration
mode.
device(config-bgp-router)# address-family ipv6 unicast
4. Do one of the following:
•
Enter the
maximum-paths
command and specify a value to set the maximum number of BGP4+ shared paths.
•
Enter the
maximum-paths
command using the
use-load-sharing
keyword to set the maximum number of BGP4+ shared
paths to that of the value already configured by means of the
ip load-sharing
command.
device(config-bgp-ipv6u)# maximum-paths 8
or
device(config-bgp-ipv6u)# maximum-paths use-load-sharing
The following example sets the maximum number of BGP4+ shared paths to 8.
device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv6 unicast
device(config-bgp-ipv6u)# maximum-paths 8
The following example sets the maximum number of BGP4+ shared paths to that of the value already configured using the
ip load-
sharing
command.
device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv6 unicast
device(config-bgp-ipv6u)# maximum-paths use-load-sharing
Configuring a route map for BGP4+ prefixes
Route maps can be applied to IPv6 unicast address prefixes either as the inbound or outbound routing policy for neighbors under the
specified address family.
1. Enter the
configure terminal
command to access global configuration mode.
device# configure terminal
2. Enter the
ipv6 prefix-list
command and enter a name to configure an IPv6 prefix list.
device(config)# ipv6 prefix-list myprefixlist seq 10 permit 2001:db8::/32
The prefix list name, sequence number, and permits packets are specified.
3. Enter the
route-map
name
permit
command to define the route map and enter route map configuration mode.
device(config)# route-map myroutemap permit 10
4. Enter the
match ipv6 address
command and specify the name of a prefix list.
device(config-route-map-myroutemap)# match ipv6 address prefix-list myprefixlist
5. Enter the
exit
command to return to global configuration mode.
device(config-route-map-myroutemap)# exit
Configuring BGP4+
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