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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 a Group Address Range for a Channel

Configuring a Group Address Range for a Channel


To control the number of multicast groups in a specified channel, configure a group address range for this channel.

After you configure a group address range for a channel, the device forwards multicast data to all groups by default, including the groups out of the configured range. If you want the device to forward only multicast data of the groups in the configured range, run the unspecified-channel deny command to filter out multicast data of groups out of the range.


  1. Run:


    The system view is displayed.

  2. Run:

    multicast-channel [ vpn-instance vpn-instance-name ]

    Layer 3 multicast CAC is enabled, and the multicast-channel view is displayed.

  3. Run:

    channel channel-name type { asm | ssm }

    A channel is created, and the channel view is displayed.

  4. Run:

    group group-address mask { group-mask-length | group-mask } [ source source-address mask { source-mask-length | source-mask } ] [ per-bandwidth traffic-rate ]

    A group address range and a source address range are configured for the channel.

  5. Run:


    Exit from the channel view.

  6. (Optional) Run:

    unspecified-channel deny

    The device is configured not to forward multicast data to the groups out of the group address range.

Updated: 2019-08-21

Document ID: EDOC1000141903

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