Configuring The Maximum Number Of Sa Caching; Requesting Source Information Of Msdp Peers; Controlling The Source Information Created - H3C S9500 Series Operation Manual

Operation Manual – MSDP
H3C S9500 Series Routing Switches

1.2.6 Configuring the Maximum Number of SA Caching

To prevent Deny of Service (DoS) attacks, you can set the maximum number of SAs
cached on the router.
Perform the following operation in MSDP view to configure/restore the maximum
number of SA caching:
Configuring the maximum number of SA
caching
Restore the default configuration
By default, the maximum number of SA caching is 2048.

1.2.7 Requesting Source Information of MSDP Peers

When a new group joins, the router will send a SA request message to the specified
MSDP peer, and the MSDP peer will respond with the SA messages it caches. If the
MSDP peer does not enable the SA caching, the configuration is invalid.
Perform the following operations in MSDP view to request source information of MSDP
peers or restore the default configuration:
Configure the router to send SA request
message to the specified MSDP peer when
receiving the join message of a group
Restore the default configuration
The SA request message sent by a local RP will get the immediate response about all
active sources.
By default, the router does not send SA request message to its MSDP peer when
receiving the join message of a group. Instead, it waits for the arrival of SA message of
the next period.

1.2.8 Controlling the Source Information Created

I. Filtering the multicast routing entries imported
RP filters the registered sources to control the information of the active sources
advertised in SA message. MSDP peers can be configured to only advertise the
To do...
To do...
1-7
Chapter 1 MSDP Configuration
Use the command...
peer peer-address sa-cache-maximum
sa-limit
undo peer peer-address
sa-cache-maximum
Use the command...
peer peer-address
request-sa-enable
undo peer peer-address
request-sa-enable