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Configuration Guide - IP Multicast

S7700 and S9700 V200R013C00

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, IPv4 PIM, IPv6 PIM, MSDP, multicast VPN, layer 3 multicast CAC, IPv4 multicast route management, IPv6 multicast route management, IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN replication, layer 2 multicast CAC, multicast network management.
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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 system-view

    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 quit

    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: 2019-04-08

Document ID: EDOC1100065742

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