Configuring A Large Scale Bgp Network; Forbiding Session Establishment With A Peer Or Peer Group; Configuring Bgp Peer Groups - HP 4800G Series Configuration Manual

Forbiding Session Establishment with a Peer or Peer Group

Follow these steps to forbid session establishment with a peer or peer group:
To do...
Enter system view
Enter BGP view
Forbid session establishment with a
peer or peer group

Configuring a Large Scale BGP Network

In a large-scale BGP network, configuration and maintenance become difficult due to large numbers of
BGP peers. To facilitate configuration in this case, you can configure peer group, community, route
reflector or confederation as needed.
Configuration Prerequisites
Peering nodes are accessible to each other at the network layer.

Configuring BGP Peer Groups

A peer group is a group of peers with the same route selection policy.
In a large scale network, many peers may use the same route selection policy. You can configure a peer
group and add these peers into this group. In this way, peers can share the same policy as the peer
group. When the policy of the group is modified, the modification also applies to peers in it, thus
simplifying configuration.
A peer group is an iBGP peer group if peers in it belong to the same AS, and is an eBGP peer group if
peers in it belong to different ASs.
Note that:
If a peer group has peers added, you cannot remove its AS number using the undo form of the
command or change its AS number.
Configure an iBGP peer group
After you create an iBGP peer group and then add a peer into it, the system creates the peer in BGP
view and specifies the local AS number for the peer.
Follow these steps to configure an iBGP peer group:
Enter system view
Enter BGP view
Create an iBGP peer group
Add a peer into the iBGP peer group
To do...
Use the command...
system-view
bgp as-number
peer { group-name |
ip-address } ignore
Use the command...
system-view
bgp as-number
group group-name [ internal ]
peer ip-address group group-name
1-35
Remarks
—
—
Optional
Not forbidden by default
Remarks
—
—
Required
Required