H3C Technologies H3C S12500 Series Switches - Manual (Page 225)

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Configuring an EBGP peer group
If peers in an EBGP group belong to the same external AS, the EBGP peer group is a pure EBGP peer
group; if not, it is a mixed EBGP peer group.
Use one of the following methods to configure an EBGP peer group:
• Create the EBGP peer group, specify its AS number, and add peers into it. All the added peers
share the same AS number.
• Create the EBGP peer group, specify an AS number for a peer, and add the peer into the peer
group.
• Create the EBGP peer group and add a peer into it with an AS number specified.
To configure an EBGP peer group by using Method 1:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view or BGP-VPN
instance view.
• Enter BGP view:
bgp as-number
• Enter BGP-VPN instance view:
a. bgp as-number
b. ipv4-family vpn-instance
vpn-instance-name
Use either method.
3. Create an EBGP peer group. group group-name external
By default, no EBGP peer group is
created.
4. Specify the AS number for the
group.
peer group-name as-number
as-number By default, no AS number is
specified.
5. Add a peer into the EBGP
peer group. peer ip-address group group-name
[ as-number as-number ]
By default, no peer exists in the
peer group.
To use the as-number as-number
option, you must specify the AS
number configured by the peer
group-name as-number as-number
command.
6. Enable a peer. peer ip-address enable
Optional.
Enabled by default.
7. Configure a description for a
peer group.
peer group-name description
description-text
Optional.
By default, no description is
configured for the peer group.
NOTE:
•
You can specify an AS number for a peer before adding it into the peer group. The AS number must be
the same as that of the peer group.
• All of the added peers have the same AS number as that of the peer group.
To configure an EBGP peer group by using Method 2:
Step Command Remarks
1. Enter system view. system-view N/A