Specifying a Single-Hop Connection for IBGP Peers

IBGP peers are multihop by default. However, you can use the neighbor ibgp-single-hop command to enable single-hop connections for IBGP peers.

neighbor ibgp-singlehop

• Use to specify an internal BGP peer as a single-hop peer for IBGP sessions.
• If you specify a BGP peer group by using the peerGroupName argument, all the members of the peer group inherit the characteristic configured with this command unless it is overridden for a specific peer.
• If the neighbor session type is anything other than internal BGP, issuing this command generates an error message.
• This command takes effect immediately and automatically bounces the BGP session.
• Example

  host1(config-router)#neighbor 192.168.32.15 ibgp-singlehop

• Use the no version to restore the default behavior, wherein the internal peer cannot be a single-hop peer. Use the default version to remove the explicit configuration from the peer or peer group and reestablish inheritance of the feature configuration.
• See neighbor ibgp-singlehop

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