HP A5500 EI Switch Series, Configuration Manual

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To do... Use the command... Remarks
Enter system view system-view —
Enter public network MSDP view
or VPN instance MSDP view msdp [ vpn-instance vpn-instance-
name ]
—
Configure description for an
MSDP peer
peer peer-address description text
Required
No description for MSDP peers
by default
Configuring an MSDP mesh group
An AS can contain multiple MSDP peers. You can use the MSDP mesh group mechanism to avoid SA
message flooding among these MSDP peers and optimize the multicast traffic.
An MSDP peer in an MSDP mesh group forwards SA messages from outside the mesh group that have
passed the RPF check to the other members in the mesh group. A mesh group member accepts SA
messages from inside the group without performing an RPF check, and does not forward the message
within the mesh group. This mechanism not only avoids SA flooding but also simplifies the RPF check
mechanism because you do not need to run BGP or MBGP between these MSDP peers.
By configuring the same mesh group name for multiple MSDP peers, you can create a mesh group that
contains these MSDP peers.
Follow these steps to create an MSDP mesh group:
To do... Use the command... Remarks
Enter system view system-view —
Enter public network MSDP view
or VPN instance MSDP view msdp [ vpn-instance vpn-instance-
name ]
—
Create an MSDP mesh group and
assign an MSDP peer to that
mesh group
peer peer-address mesh-group
name
Required
An MSDP peer does not belong to
any mesh group by default
NOTE:
Before grouping multiple routers into an MSDP mesh group, make sure that these routers are
interconnected with one another.
If you configure more than one mesh group name on an MSDP peer, only the last configuration is
effective.
Configuring MSDP peer connection control
MSDP peers are interconnected over TCP with port number 639. You can control the sessions between
MSDP peers by deactivating and reactivating the MSDP peer connections. When the connection
between two MSDP peers is deactivated, SA messages will no longer be delivered between them, and
the TCP connection is closed without any connection setup retry. The configuration information, however,
remains unchanged.
A TCP connection is required in the following situations:
•
When you create a new MSDP peer