Huawei Quidway S5600 Series Operation Manual page 495

Operation Manual – Multicast Protocol
Quidway S5600 Series Ethernet Switches-Release 1510
The SA message that the remote MSDP responds with is cached in advance; therefore,
you must enable the SA message caching mechanism in advance. Typically, only the
routers caching SA messages can respond to SA request messages.
After you have configured a rule for filtering received SA messages, if no ACL is
specified, all SA request messages sent by the corresponding MSDP peer will be
ignored; if an ACL is specified, the SA request messages that satisfy the ACL rule are
received while others are ignored.
Table 8-8 Configure the transmission and filtering of SA request messages
Operation
Enter system view
Enter MSDP view
Enable SA message
caching mechanism
Enable MSDP peers to
send
messages
Configure a rule for
filtering
messages received by
an MSDP peer
8.4.3 Configuring a Rule for Filtering the Multicast Sources of SA Messages
An RP filters each registered source to control the information of active sources
advertised in the SA message. An MSDP peer can be configured to advertise only the
(S, G) entries in the multicast routing table that satisfy the filtering rule when the MSDP
creates the SA message, that is, to control the (S, G) entries to be imported from the
multicast routing table to the PIM-SM domain. If the import-source command is
executed without the acl keyword , no source will be advertised in the SA message.
system-view
Msdp
Cache-sa-enable
peer
SA request
request-sa-enable
peer
the SA
sa-request-policy [ acl
acl-number ]
Huawei Technologies Proprietary
Command
—
—
Optional
By default, the router caches
the SA state upon receipt of
an SA message.
Optional
By default, upon receipt of a
Join message, the router
peer-address
sends
message to its MSDP peer
but waits for the next SA
message.
Optional
You can configure the rule
peer-address for filtering related multicast
group IP addresses in ACL.
By default, a router receives
all SA request messages
from the MSDP peer.
8-13
Chapter 8 MSDP Configuration
Description
no SA request