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S600-E V200R012C00 Configuration Guide - IP Multicast

This document describes the configurations of IP multicast, including IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN replication, controllable multicast, multicast network management.
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(Optional) Configuring the Router-Alert Option

(Optional) Configuring the Router-Alert Option

Context

By default, the switch does not check whether IGMP messages contain the Router-Alert option and sends all the IGMP messages to the upper-layer routing protocol. To improve device performance, reduce transmission cost, and enhance protocol security, configure the switch to discard IGMP messages without the Router-Alert option.

By default, the switch sends IGMP messages with the Router-Alert option.

For details about the Router-Alert option, see RFC 2113.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run vlan vlan-id

    The VLAN view is displayed.

  3. Run igmp-snooping require-router-alert

    The device is configured to check whether IGMP messages contain the Router-Alert option.

  4. Run igmp-snooping send-router-alert

    The device is configured to send only IGMP messages with the Router-Alert option.

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Updated: 2018-09-01

Document ID: EDOC1100037948

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