Configuring An Msdp Mesh Group; Configuring Msdp Peer Connection Control - HP A6600 Configuration Manual

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 no need exists 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 and
assign those MSDP peers to that mesh group.
To do...
1. Enter system view.
2. Enter public network MSDP
view or VPN instance MSDP
view.
3. Create an MSDP mesh group
and assign an MSDP peer to
that mesh group.
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 (port number 639). You can flexibly control sessions between
MSDP peers by manually deactivating and reactivating the MSDP peering 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
remain unchanged.
When a new MSDP peer is created, or when a previously deactivated MSDP peer connection is
reactivated, or when a previously failed MSDP peer attempts to resume operation, a TCP connection is
required. You can adjust the interval between MSDP peering connection retries.
To do...
1. Enter system view.
2. Enter public network MSDP
view or VPN instance MSDP
view.
3. Deactivate an MSDP peer.
4. Configure the interval
between MSDP peer
connection retries.
Use the command...
system-view
msdp [ vpn-instance
vpn-instance-name ]
peer peer-address mesh-group
name
Use the command...
system-view
msdp [ vpn-instance
vpn-instance-name ]
shutdown peer-address
timer retry interval
171
Remarks
—
—
Required.
An MSDP peer does not belong to
any mesh group by default.
Remarks
—
—
Optional.
Active by default.
Optional.
30 seconds by default .