7.9.3 Setting Rules for Receiving an SA Message
You can set the rules for filtering the received SA messages on a specified remote MSDP peer.
When SA messages sent by a remote MSDP peer reach the local device, the local device
determines whether to accept the messages based on the set rules.
Context
Do as follows on the switch configured with MSDP:
NOTE
If the configuration is not done, the switch receives all SA messages that pass the RPF check.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
msdp [ vpn-instance vpn-instance-name ]
The MSDP view is displayed.
Step 3 Run:
peer peer-address sa-policy import [ acl { advanced-acl-number | acl-name } ]
The rules for filtering an SA message received from a remote MSDP peer are set.
The parameters of the command are explained as follows:
l peer-address: specifies the address of a remote MSDP peer.
l acl: specifies the advanced filtering list. Only the (S, G) information that passes the filtering
of the ACL is received. The (S, G) information is contained in an SA message sent by the
peer specified by peer-address .
l If the peer peer-address sa-policy import command without acl is used, the switch does not
receive any (S, G) information from the peer specified by peer-address.
----End
7.9.4 Setting Rules for Forwarding an SA Message
You can set the rules for filtering the SA messages to be forwarded to a remote MSDP peer on
a local device. The local device then determines whether to forward the received SA messages
based on the set rules.
Context
Do as follows on the switch enabled with MSDP:
NOTE
If the configuration is not done, the switch forwards all SA messages that pass the RPF check.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 7 MSDP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
252
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