The valid ranges of C-RP addresses and addresses of groups that the C-RP serves are limited.
When receiving an Advertisement message, an S9300 checks the C-RP address and the address
of the group that the C-RP serves in the message. The Advertisement message is accepted and
the RP information is added to the RP-set only when the C-RP address and the group address
are in the valid address range. The C-RP spoofing is thus avoided.
By default, an S9300 accepts all Advertisement messages and records them to the RP-set without
checking the C-RP address and the address of the group that the C-RP serves.
----End
4.8.7 Checking the Configuration
Prerequisite
The setting of the parameters of a dynamic RP is complete.
Procedure
l Run the display pim bsr-info command to check the BSR information in the PIM-SM
domain.
l Run the display pim rp-info [ group-address ] command to check the RP information in
the PIM-SM domain.
----End
Example
Run the display pim bsr-info command to check the BSR information.
<Quidway> display pim bsr-info
VPN-Instance: public net
Elected AdminScoped BSR Count: 0
Elected BSR Address: 10.0.1.20
Priority: 10
Hash mask length: 30
State: Elected
Scope: Not scoped
Uptime: 00:29:54
Next BSR message scheduled at: 00:00:06
C-RP Count: 1
Candidate AdminScoped BSR Count: 0
Candidate BSR Address: 10.0.1.20
Priority: 10
Hash mask length: 30
State: Elected
Scope: Not scoped
Wait to be BSR: 0
Run the display pim rp-info command, and you can view information about the RP.
<Quidway> display pim rp-info
VPN-Instance: public net
PIM-SM BSR RP information:
Group/MaskLen: 224.0.0.0/4
RP: 10.0.0.15 (local)
Priority: 15
Uptime: 00:30:00
Expires: 00:57:53
Quidway S9300 Terabit Routing Switch
Configuration Guide - Multicast 4 PIM-SM Configuration
Issue 01 (2009-07-28) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4-27
To Next Page
Loading...
