Configuring Msdp Peer Description; Configuring An Msdp Mesh Group - 3Com S7906E Configuration Manual

Description information of MSDP peers
Name of an MSDP mesh group
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...
Enter system view
Enter public instance MSDP
view or VPN instance MSDP
view
Configure description for an
MSDP peer

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...
Enter system view
Enter public instance MSDP
view or VPN instance MSDP
view
Create an MSDP mesh group
and assign an MSDP peer to
that mesh group
Use the command...
system-view
msdp [ vpn-instance
vpn-instance-name ]
peer peer-address description
text
Use the command...
system-view
msdp [ vpn-instance
vpn-instance-name ]
peer peer-address
mesh-group name
1-11
Remarks
—
—
Required
No description for MSDP peers
by default
Remarks
—
—
Required
An MSDP peer does not belong
to any mesh group by default