Chapter 12: BGP Configuration Guide

This sample configuration shows External BGP peers, SSR1 and SSR4, which are not connected to the same subnet.

AS-64800

16.122.128.3/16

SSR1

16.122.128.1/16

SSR2

17.122.128.4/16

SSR3

17.122.128.3/16

18.122.128.3/16

AS-64801

18.122.128.2/16

Legend:

Physical Link

SSR4

Peering Relationship

The CLI configuration for router SSR1 is as follows:

bgp create peer-group ebgp_multihop autonomous-system 64801 type external bgp add peer-host 18.122.128.2 group ebgp_multihop

!

!Specify the gateway option, which indicates EBGP multihop. Set the

!gateway option to the address of the router that has a route to the

!peer.

!

bgp set peer-host 18.122.128.2 gateway 16.122.128.3 group ebgp_multihop

SmartSwitch Router User Reference Manual

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Cabletron Systems 9032578-05 manual AS-64800, Physical Link