Figure 4-3 Networking diagram of IGMP limit
SwitchA
SwitchB
SwitchC
GE2/0/0
192.168.1.1/24
GE1/0/0
10.110.1.1/24
PIM network
GE2/0/0
192.168.2.1/24
GE2/0/0
192.168.3.1/24
GE1/0/0
10.110.2.1/24
GE1/0/0
10.110.3.1/24
Ethernet
HostA
Receiver
HostB
N1
Leaf network
HostD
N2
Ethernet
HostC
Receiver
Switch Physical interface VLANIF interface IP address
SwitchA GE1/0/0 VLANIF10 10.110.1.1/24
GE2/0/0 VLANIF11 192.168.1.1/24
SwitchB GE1/0/0 VLANIF20 10.110.2.1/24
GE2/0/0 VLANIF21 192.168.2.1/24
SwitchC GE1/0/0 VLANIF30 10.110.3.1/24
GE2/0/0 VLANIF31 192.168.3.1/24
Configuration Roadmap
The configuration roadmap is as follows:
1. Enable multicast on all the switches providing multicast services. The multicast function
must be enabled before you enable IGMP.
2. Enable PIM-SM on all the VLANIF interfaces of the switches.
3. Enable IGMP on the VLANIF interfaces connected to user hosts.
4. Add GE1/0/0 of SwitchA to the multicast group 225.1.1.1 statically to enable user hosts to
receive stable multicast data.
5. Set the maximum number of IGMP group memberships on SwitchA.
Data Preparation
To complete the configuration, you need the following data:
l Version of IGMP running between switches and user hosts
l Static multicast group address, 225.1.1.1
l Maximum number of member relationships in an IGMP group
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 4 IGMP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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