Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 5 BGP Configuration Commands
3Com Corporation
5-33
internal: Creates an internal peer group.
external: Creates an external peer group including other sub ASs in the confederation.
Description
Use the group command to create a peer group.
Use the undo group command to delete the configured peer group.
The use of BGP peer group is for ease of configuration. When you are starting several
peers with the same configuration, you can establish and configure a peer group at first,
and then add all the peers to the peer group so that they have the same configuration
as the peer group.
By default, an IBGP peer is added to the default peer group and needs no configuration,
and the route update policy configured for any IBGP peer is valid for the other IBGP
peers in the group. To be specific, if the router is not a route reflector, all the IBGP peers
are in the same group. If the router is a route reflector, all the route reflection clients are
in a group, while non-clients are in another group.
The external peer group members must be in the same network segment. Otherwise,
some EBGP peers may discard the transmitted route update.
The peer group members cannot be configured with a route update policy different from
that of the peer group, but can be configured with different ingress policies.
Example
# Establish a peer group "test".
[3Com -bgp] group test
5.1.33 import-route
Syntax
import-route protocol [ med med-value ] [ route-policy route-policy-name ]
undo import-route protocol
View
BGP view
Parameter
protocol: Specifies the routing protocol from which to redistribute routes, it can be
direct, ospf, ospf-nssa , ospf-ase, rip, bgp, and static at present.
med med-value: Specifies the MED value to be applied to redistributed routes, ranging
from 0 to 4294967295.
route-policy route-policy-name: Specifies the route-policy for filtering redistributed
routes. It can be an alphanumeric string with the length ranging from 1 to 19.