H3C Technologies H3C S7500E Series Switches - Manual (Page 212)

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z Configure any unicast routing protocol so that all devices in the domain are interoperable at the
network layer.
z Configuring basic functions of MSDP
Before configuring an MSDP peer connection, prepare the following data:
z Description information of MSDP peers
z Name of an MSDP mesh group
z MSDP peer connection retry interval
Configuring MSDP Peer Description
With the MSDP peer description information, the administrator can easily distinguish different MSDP
peers and thus better manage MSDP peers.
Follow these steps to configure description for an MSDP peer:
To do... Use the command... Remarks
Enter system view system-view —
Enter public instance 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 may 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.
On one hand, 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; on the other hand, 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 either. This mechanism not only avoids SA
flooding but also simplifies the RPF check mechanism, because BGP or MBGP is not needed to run
between these MSDP peers.
By configuring the same mesh group name for multiple MSDP peers, you can create a mesh group
assign those MSDP peers to that mesh group.
Follow these steps to create an MSDP mesh group:
To do... Use the command... Remarks
Enter system view system-view —
Enter public instance MSDP view
or VPN instance MSDP view
msdp [ vpn-instance
vpn-instance-name ]
—