Igmp Configuration; Configuring Igmp Version - H3C S7500 Series Operation Manual

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Operation Manual – Multicast

H3C S7500 Series Ethernet Switches

On VLAN interface 2, configure VLAN interface 1 as the outbound IGMP Proxy

interface to external networks. You must enable the IGMP protocol on the interface

first, and then configure the igmp proxy command.

Configure Switch A as follows:

Enable multicast routing and configure the IGMP protocol on VLAN interface 1.

Configure the pim neighbor-policy command to filter PIM neighbors in the

network segment 33.33.33.0/24. That is, Switch A does not consider Switch B as

its PIM neighbor.

In this case, when VLAN interface 2 of Switch B of the leaf network receives an IGMP

join or IGMP leave message sent by the host, it will change the source address of the

IGMP message into the address of VLAN interface 1 (33.33.33.2) and send the

information to VLAN interface 1 of Switch A. For Switch A, this works as if there is a

host directly connected to VLAN interface 1.

Similarly, when Switch B receives an IGMP general group or group-specific query

message from the Layer 3 Switch A, it will also change the source address of the query

message into the IP address of VLAN interface 2 (22.22.22.1) and send the message

from VLAN interface 2.

interface 1 of Switch B is called the proxy interface.

6.2 IGMP Configuration

Complete the following tasks to configure IGMP:

Configuring IGMP Query Messages

Configuring IGMP Multicast Groups on the Interface

Configuring Router Ports to Join the Specified Multicast Group

Configuring IGMP Proxy

Configuring Suppression on IGMP Report Messages

Removing the Joined IGMP Groups from the Interface

6.2.1 Configuring IGMP Version

Follow these steps to configure IGMP version:

6-2, VLAN interface 2 of Switch B is called the client interface and VLAN

Chapter 6 IGMP Configuration

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