Huawei quidway s7700 - Optional) Configuring the SSM Group Address Range

l group-policy basic-acl6-number: specifies that the C-RP serves only the multicast group
matching ACL6. basic-acl-number: specifies the number of the basic ACL6. By default, the
C-RP serves all multicast groups.
l priority priority: specifies the priority for electing the C-RP. The greater the value, the lower
the priority. By default, the priority is 192.
NOTE
In the RP election, the C-RP with the highest priority (with the lowest priority value) succeeds. In case
of the same priority, the hash function is calculated, and the C-RP with the greatest hash value succeeds.
In case of the same priority and the same hash value, the C-RP with the highest IP address succeeds.
l holdtime hold-interval: specifies the timeout period during which the BSR waits to receive
the advertisement message from the C-RP. By default, the value is 150s.
l advertisement-interval adv-interval: specifies the interval during which the C-RP sends
advertisement messages. By default, the value is 60s.
Step 4 Run:
c-bsr ipv6-address [ hash-length ]
A C-BSR is configured.
The parameters of this command are explained as follows:
l ipv6-address: specifies the IPv6 address of the interface where the C-BSR resides. The
interface must be configured with PIM-SM.
l hash-length: specifies the length of the hash mask. According to the group address G, C-RP
address, and the value of hash-length, switchs calculate the C-RPs that have the same priority
and want to serve G by operating hash functions, and compare the calculation results. The
C-RP with the greatest calculated value acts as the RP that serves G.
You can use the c-bsr hash-length hash-length command to set the global hash length of the
C-BSRs. The set hash length then applies to all the C-BSRs configured on the switch.
Step 5 (Optional) Run:
bsm semantic fragmentation
The BSR message fragmentation is enabled.
It is recommended to enable BSR message fragmentation on all devices on the network because
BSR message fragmentation can solve the problem faced by IP fragmentation that all fragments
become unavailable due to loss of fragment information.
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13.3.7 (Optional) Configuring the SSM Group Address Range
The default SSM group address range is FF3x::/32. You can manually configure the SSM group
address range. Ensure that the SSM group address ranges configured on all devices in the network
are identical.
Context
Do as follows on all switchs in the PIM-SM domain:
NOTE
This configuration is optional. By default, the SSM group address range is FF3x::/32.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 13 PIM-SM (IPv6) Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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