Optional) Configuring The S7700 To Respond To Changes Of A Layer 2 Network Topology; Optional) Modifying Parameters Of Igmp Snooping In A Vlan - Huawei Quidway S7700 Configuration Manual - Multicast

Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast
By default, prompt leave is disabled for interfaces.
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2.3.10 (Optional) Configuring the S7700 to Respond to Changes of
a Layer 2 Network Topology
Context
This task is performed to enable the S7700 to detect changes of a Layer 2 network topology and
forward multicast packets correctly based on the new topology.
Do as follows on the S7700 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 S7700 enabled with IGMP snooping is configured to respond to changes of a Layer 2
network topology.
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2.3.11 (Optional) Modifying Parameters of IGMP Snooping in a
VLAN
Context
You can modify parameters of IGMP snooping to optimize the multicast performance on the
S7700 according to the actual situation of the network. The following parameters can be
modified:
l
Issue 01 (2011-07-15)
NOTE
On the S7700, 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, theS7700 sends an IGMP Query message with the source
IP address being 192.168.0.1. The source IP address can be changed by the igmp-snooping send-query
source-address source-address command.
Suppression duration of IGMP messages
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2 IGMP Snooping Configuration
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