3Com 3C13636 Configuration Manual page 670

3Com Router 3000 Ethernet Family
Configuration Guide
You cannot specify an AS number for a peer group with members. When the AS
number of a peer group is deleted, all peers in the peer group also are deleted.
III. Adding a peer into a peer group
A BGP peer cannot exist independently from its peer group. Therefore, to configure a
peer, you must specify the peer group it belongs to. You can also specify its AS number
at the same time.
Table 6-5 Add a peer into a peer group
Create a peer in a peer group
Delete a peer from a peer group
In the case of an internal peer group, you cannot specify the AS number, and the added
peer is an IBGP peer.
In the case of an external peer group, if it is not specified with an AS number, you must
specify an AS number for the peer to be added into it; if it has been configured with an
AS number, the peer will inherit its AS number and no AS number is necessary to be
specified for the peer.
IV. Configuring a description for a peer/peer group
In order to help understand the characteristics of a peer/peer group, you can configure
a description for the peer/peer group.
Table 6-6 Configure a description for a peer/peer group
Configure a description for a peer/peer
group
Delete the description of a peer/peer
group
By default, no BGP peer/peer group description is set.
V. Connecting with EBGP peer groups on indirectly connected networks
Generally, EBGP peers must be connected physically, or the command below can be
used to perform the configuration.
Operation
Operation
3Com Corporation
6-5
Chapter 6 BGP Configuration
Command
peer peer-address group group-name
[as-number as-number]
undo peer peer-address group
Command
peer { peer-address | group-name }
description description-line
undo peer {
group-name } description
peer-address |