Context
Do as follows on all the C-BSRs in the PIM-SM domain:
NOTE
This configuration is optional. By default, a switch does not check the C-RP address and the group address
contained in a received Advertisement message and adds them to the RP-set.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
pim [ vpn-instance vpn-instance-name ]
The PIM view is displayed.
Step 3 Run:
crp-policy { advanced-acl-number | acl-name acl-name }
The range of the valid C-RP addresses and the range of the multicast group addresses that a
switch serves are specified. When receiving an Advertisement message, the switch checks the
C-RP address and the addresses of the groups that the C-RP serves in the message. The C-RP
address and the addresses of the groups that the C-RP serves are added to the RP-Set only when
they are in the valid address range. The C-RP spoofing can thus be prevented.
{ advanced-acl-number | acl-name acl-name }: specifies the advanced ACL. The ACL defines
the filtering policy for the C-RP address range and the address range of the groups that a C-RP
serves.
----End
6.5.7 Checking the Configuration
After the control parameters of C-RPs and C-BSRs are adjusted, you can check information
about the BSR and RP and check whether a BSR boundary is configured on the interface through
commands.
Procedure
l Run the display pim [ vpn-instance vpn-instance-name | all-instance ] bsr-info command
to check the BSR in a PIM-SM domain.
l Run the display pim [ vpn-instance vpn-instance-name | all-instance ] rp-info [ group-
address ] command to check the RP in a PIM-SM domain.
----End
6.6 Configuring a BSR Administrative Domain
A PIM-SM network can be divided into multiple BSR administrative domains and a global
domain. This effectively reduces the load of a single BSR, and provides a special service for
specific multicast groups.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 6 PIM-SM (IPv4) Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
162
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