Ibgp Internal Group Example - Cabletron Systems IA1100 User's Reference Manual

The following lines on the Cisco router set up IBGP peering with router IA6.
router bgp 64801
!
! Disable synchronization between BGP and IGP
!
no synchronization
neighbor 172.23.1.26 remote-as 64801
!
! Allow internal BGP sessions to use any operational interface for TCP
! connections
!
neighbor 172.23.1.26 update-source Loopback0

IBGP Internal Group Example

The IBGP Internal group expects all peers to be directly attached to a shared subnet so
that, like external peers, the next hops received in BGP advertisements may be used
directly for forwarding. All Internal group peers should be L2 adjacent.
Internet Appliance User Reference Manual
Chapter 8: BGP Configuration Guide
111