Applicable Environment
IGMPv2 and IGMPv3 have the Group-Specific and Source/Group-Specific Query messages.
The groups are varied and an S9300 cannot join all groups. Therefore, the IGMP needs to use
the Router-Alert option. Then the IGMP can send messages for the groups that the local device
does not join to the upper protocol for processing.
The IGMP querier periodically sends IGMP Query messages on the shared network connected
to receivers. When receiving a Report message from a member, the querier updates information
about the membership. If non-queriers do not receive any General Query message within the
Keepalive period of the IGMP querier, the querier is considered faulty, and a new round of the
querier election is triggered automatically.
In some cases, one host matches a port. Therefore, a querier matches only one receiver host.
When a receiver host switches between multiple groups frequently, you can enable the prompt
leave mechanism on the querier.
Pre-configuration Tasks
Before configuring IGMP message options and timers, complete the following tasks:
l Configure the unicast routing protocol to make the IP routes of nodes be reachable.
l 2.4 Configuring Basic IGMP Functions
Data Preparation
To configure IGMP message options and related timers, you need the following data.
No.
Data
1 Whether the Router-Alert option is contained
in the packet
2 Interval for sending IGMP General Query
messages
3 IGMP robustness variable
4 Maximum response duration of the IGMP
Query messages
5 Keepalive period of the other IGMP queriers
6 Interval for sending IGMP Group-Specific
Query messages
7 ACL that limits the application range of
prompt leave
2.5.2 Configuring IGMP Message Options
Quidway S9300 Terabit Routing Switch
Configuration Guide - Multicast 2 IGMP Configuration
Issue 01 (2009-07-28) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2-9
To Next Page
Loading...
