2. Enter the router bgp command to enable BGP routing.
device(config)# router bgp
3. (Optional) Enter the address-family command and specify the ipv6 and unicast keywords to enter IPv6 address family
conguration mode.
device(config-bgp-router)# address-family ipv6 unicast
4. Enter the no graceful restart command to disable graceful restart at the IPv6 address family conguration level.
device(config-bgp-ipv6u))# no graceful-restart
In the following example, the graceful restart feature is disabled at the IPv6 address family
conguration level.
device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv4 unicast
device(config-bgp-ipv6u))# no graceful-restart
Re-enabling BGP4+ graceful restart
If the BGP4+ graceful restart (GR) feature is disabled on a routing device, it can be re-enabled, providing it with the capability to inform its
neighbors and peers when it is performing a restart.
1. Enter the congure terminal command to access global conguration mode.
device# configure terminal
2. Enter the router bgp command to enable BGP routing.
device(config)# router bgp
3. Enter the local-as command to congure the autonomous system number (ASN) in which your device resides.
device(config-bgp-router)# local-as 1000
4. Enter the neighbor ipv6-address remote-as command to specify the autonomous system ASN in which the remote neighbor
resides.
device(config-bgp-router)# neighbor 1000::1 remote-as 2
5. Enter the address-family command and specify the ipv6 and unicast keywords to enter IPv6 address family
conguration
mode.
device(config-bgp-router)# address-family ipv6 unicast
6. Enter the neighbor ipv6-address activate command to add a neighbor.
device(config-bgp-ipv6u)# neighbor 1000::1 activate
7. Enter the graceful-restart command to enable the graceful restart feature.
device(config-bgp-ipv6u)# graceful-restart
Conguring BGP4+
FastIron Ethernet Switch Layer 3 Routing
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