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Configuration Guide - IP Multicast

S7700 and S9700 V200R010C00

This document describes IP multicast basics and how to configure IP multicast features, including IGMP/MLD, PIM (IPv4&IPv6), MSDP, multicast VPN, Layer 3 multicast CAC, Layer 2 multicast CAC, IGMP/MLD snooping, and multicast VLAN, IPv4&IPv6 multicast route management, static multicast MAC address, multicast network.
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Configuring Basic IGMP Proxy Functions

Configuring Basic IGMP Proxy Functions

Context

In a simple tree topology, multicast switches directly connected to user network segments do not need to run any complicated multicast routing protocol (such as PIM). However, the upstream access devices have to manage many users because the multicast switches transparently transmit all IGMP messages from hosts. In this case, configure the IGMP proxy function on the multicast router so that the router collects IGMP Report and Leave messages from receiver hosts before sending these messages to the upstream access device. In addition, the router maintains membership and forwards multicast messages based on the membership. To the upstream access device, the multicast router configured with IGMP proxy is a host.

IGMP proxy is configured on upstream interfaces of an IGMP proxy device, and IGMP is configured on its downstream interfaces.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. (Optional) On an Ethernet interface, run undo portswitch

    The interface is switched to Layer 3 mode.

    By default, an Ethernet interface works in Layer 2 mode.

  4. Run:

    igmp proxy

    IGMP proxy is enabled.

    By default, IGMP proxy is disabled on an interface.

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Updated: 2019-08-21

Document ID: EDOC1000141903

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