Configuring Sa Message Transmission - Huawei Quidway S5600 Series Operation Manual

Operation Manual – Multicast Protocol
Quidway S5600 Series Ethernet Switches-Release 1510
Note:
Before you configure an MSDP mesh group, make sure the routers must be fully
connected with one another.
The same group name must be configured on all the peers.
If you add the same MSDP peer into multiple mesh groups, only the latest
configuration takes effect.
8.3.5 Configuring MSDP Peer Connection Control
The connection between MSDP peers can be flexibly controlled. You can disable the
MSDP peering relationships temporarily by shutting down the MSDP peers. As a result,
SA messages cannot be transmitted between such two peers. On the other hand, when
resetting an MSDP peering relationship between faulty MSDP peers or bringing faulty
MSDP peers back to work, you can adjust the retry interval of establishing a peering
relationship through the following configuration.
Table 8-6 Configure MSDP peer connection control
Enter system view
Enter MSDP view
Shut down an MSDP peer
Configure retry interval of
setting up an MSDP peer
connection

8.4 Configuring SA Message Transmission

An SA message contains the IP address of the multicast source S, multicast group
address G, and RP address. In addition, it contains the first multicast data received by
the RP in the domain where the multicast source resides. For some burst multicast data,
if the multicast data interval exceeds the SA message hold time, the multicast data
must be encapsulated in the SA message; otherwise, the receiver will never receive the
multicast source information.
By default, when a new receiver joins in, a router does not send an SA request
message to its MSDP peer but has to wait for the next SA message. This defers the
reception of the multicast information by the receiver. In order for the new receiver to
know about the currently active multicast source as quickly as possible, the router
needs to send SA request messages to the MSDP peer.
Operation
system-view
msdp
shutdown peer-address
timer retry seconds
Huawei Technologies Proprietary
Command
8-11
Chapter 8 MSDP Configuration
Description
—
—
Optional
Optional
The default value is 30
seconds.