Configuring A Large Scale Mbgp Network; Configuration Prerequisites; Configuring Ipv4 Mbgp Peer Groups; Configuring Mbgp Community - HP A5500 SI Switch Series Configuration Manual

Configuring a large scale MBGP network

Configuration prerequisites

Before performing this task, make peering nodes accessible to each other at the network layer.

Configuring IPv4 MBGP peer groups

In a large-scale network, configuration and maintenance become difficult because of large numbers of
MBGP peers. You can configure peer groups to make management easier and to improve the efficiency
of route distribution.
Follow these steps to configure an IPv4 MBGP peer group:
To do...
Enter system view
Enter BGP view
Create a BGP peer group
Add a peer into the peer group
Enter IPv4 MBGP address family
view
Enable the IPv4 unicast peer
group
Add an IPv4 MBGP peer to the
peer group
CAUTION:
To configure an MBGP peer group, you must enable the corresponding IPv4 BGP unicast peer group
in IPv4 MBGP address family view.
Before you add an MBGP peer to an MBGP peer group, you must add the corresponding IPv4
unicast peer to the IPv4 BGP peer group.

Configuring MBGP community

The community attribute can be advertised between MBGP peers in different ASs. Routers in the same
community share the same policy.
You can reference a routing policy to modify the community attribute for routes sent to a peer. In
addition, define extended community attributes as needed.
Follow these steps to configure MBGP community:
To do...
Enter system view
Enter BGP view
Use the command...
system-view
bgp as-number
group group-name [ external |
internal ]
peer ip-address group group-
name [ as-number as-number ]
ipv4-family multicast
peer group-name enable
peer ip-address group group-
name
Use the command...
system-view
bgp as-number
232
Remarks
—
—
Required
Not created by default.
Required
No peer is added by default.
—
Required
Required
Not configured by default
Remarks
—
—