ADTRAN AOS Version R10.1.0 Command Reference Manual page 2894

Command Reference Guide BGP Neighbor Command Set
The source interface is most often configured as a loopback interface that is reachable by the peer router.
The peer will specify this address in its neighbor commands for this router.
Usage Examples
The following example configures the loopback 1 interface as the source IPv4 address for this BGP
neighbor on the default VRF instance:
(config)#router bgp 100
(config-bgp)#neighbor 192.22.73.101
(config-bgp-neighbor)#update-source loopback 1
The following example configures the loopback 1 interface as the source IPv4 address for this BGP
neighbor on the nondefault VRF instance named RED1:
(config)#vrf RED1 route-distinguisher ip 192.17.250.24:33
(config)#router bgp 100
(config-bgp)#vrf RED1
(config-bgp-vrf)#neighbor 10.20.1.1
(config-bgp-vrf-neighbor)#update-source loopback 1
60000CRG0-35E Copyright © 2012 ADTRAN, Inc. 2894