Configures the address family used with graceful BGP restart.
| add | Add the address family. |
| delete | Remove the address family. |
| address-family | Specifies an IPv4 or IPv6 unicast or multicast address family. |
The default is IPv4 unicast.
Before you can enter this command, you must disable BGP services on the switch with the disable bgp command.
This command configures the address family participating in graceful BGP restart. An address family can be added or deleted. By adding an address family, BGP instructs the switch to preserve BGP routes of that address family during a graceful restart. The local OPEN message contains all the added address families.
Note
When graceful restart is enabled on the switch, the IPv4 unicast address family support is added by default. Graceful restart for other address families must be explicitly added using this command.
For BGP graceful restart to inter-operate with Cisco routers, any restarting routers connected to Cisco routers must be configured with the command, enable bgp neighbor capability, in the following form: enable bgp neighbor remoteaddr capability ipv4-unicast. The command must be executed before BGP is enabled globally on the switch.
The following command configures a router to add IPv4 unicast addresses to graceful BGP restarts:
configure bgp restart add address-family ipv4-unicast
This command was first available in ExtremeXOS 11.4.
Support for IPv6 was added in ExtremeXOS 12.6 BGP.
This command is available on platforms that support the appropriate license. For complete information about software licensing, including how to obtain and upgrade your license and which licenses support the BGP feature,see the Switch Engine v33.1.1 Licensing Guide document.