Command Reference Guide

72 ● peer next-hop-invariable 3Com Router 5000 Family and Router 6000 Family
Command Reference
peer next-hop-invariable
Purpose Use the peer next-hop-invariable command to configure the invariable next
hop when sending routes to EBGP peers.
Use the undo peer next-hop-invariable command to restore the default
configuration.
Syntax peer group-name next-hop-invariable
undo peer group-name next-hop-invariable
Parameters group-name
Indicates name of peer group.
Default By default, BGP Speaker varies the next hop to itself when sending routes to EBGP
peers.
Example Configure the invariable next hop when sending VPNv4 routes to EBGP peers.
[3Com -bgp] group ebgp external
[3Com -bgp] ipv4-family vpnv4
[3Com -bgp-af-vpn] peer ebgp enable
[3Com -bgp-af-vpn] peer ebgp next-hop-invariable
View This command can be used in the following views:
■ BGP view
■ BGP-VPNv4 Subaddress Family view
■ BGP VPN-Instance view
■ BGP-IPv4 Multicast Subaddress Family view
Description The peer next-hop-invariable command is applicable to the networking
application that adopts Multihop MP-BGP multi-AS VPN mode and uses Route
Reflector (RR) to advertise VPNv4 routes. The invariable next hop is configured when
VPNv4 routes are advertised between multi-AS RRs.