Optional) Configuring The S9300 To Respond To Changes Of A Layer 2 Network Topology - Huawei Quidway S9300 Configuration Manual - Multicast

Quidway S9300 Terabit Routing Switch
Configuration Guide - Multicast
The system view is displayed.
Step 2 Run:
vlan vlan-id
The VLAN view is displayed.
Step 3 Run:
igmp-snooping prompt-leave [ group-policy acl-number ]
Prompt leave is enabled for interfaces in the VLAN.
If group-policy acl-number is not specified, the S9300 immediately deletes the forwarding entry
corresponding to a member interface after receiving the Leave message from the interface.
By default, prompt leave is disabled for interfaces.
----End
1.6.12 (Optional) Configuring the S9300 to Respond to Changes of
a Layer 2 Network Topology
Context
This task is performed to enable the S9300 to detect sense changes of a Layer 2 network topology
and forward multicast packets correctly based on the new topology.
Do as follows on the S9300 that receives multicast packets from a router and forwards the
multicast packets to hosts.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
igmp-snooping send-query enable
The S9300 enabled with IGMP snooping is configured to respond to changes of a Layer 2
network topology.
----End
Issue 01 (2009-07-28)
NOTE
On the S9300, the permit rule is applicable to all multicast groups by default. To configure prompt leave
for a specified multicast group, you need to use the rule deny source any command.
NOTE
The function of responding to changes of Layer 2 network topology is usually used on a ring network.
When the topology of the ring network changes, theS9300 sends an IGMP Query message with the source
IP address being 192.168.1.1. The source IP address can be changed by the igmp-snooping send-query
source-address source-address command.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1 Layer 2 Multicast Configuration
1-21