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Configuration Guide - IP Multicast

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, PIM (IPv4), PIM (IPv6), MSDP, multicast VPN, multicast route management (IPv4), multicast route management (IPv6), IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN, multicast network management.
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Configuring an IPv6 Multicast Boundary

Configuring an IPv6 Multicast Boundary

Pre-configuration Tasks

Before configuring IPv6 multicast load splitting, complete the following tasks:

  • Configure an IPv6 unicast routing protocol to ensure normal unicast routing on the IPv6 network.
  • Run the multicast ipv6 routing-enable command in the system view to enable enable Layer 3 IPv6 multicast routing globally.


To restrict forwarding of multicast packets sent to a multicast group within a range on an IPv6 multicast network, configure the IPv6 multicast boundary on interfaces. Then multicast packets sent to the group cannot be forwarded through the boundary interfaces.


  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. 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.

    The mode switching function takes effect when the interface only has attribute configurations (for example, shutdown and description configurations). Alternatively, if configuration information supported by both Layer 2 and Layer 3 interfaces exists (for example, mode lacp and lacp system-id configurations), no configuration that is not supported after the working mode of the interface is switched can exist. If unsupported configurations exist on the interface, delete the configurations first and then run the undo portswitch command.


    If many Ethernet interfaces need to be switched to Layer 3 mode, run the undo portswitch batch interface-type { interface-number1 [ to interface-number2 ] } &<1-10> command in the system view to switch these interfaces to Layer 3 mode in batches.

  4. Run multicast ipv6 boundary ipv6-group-address ipv6-group-mask-length

    An IPv6 multicast boundary is configured on the interface.

  5. Run commit

    The configuration is committed.

Verifying the Configuration

After configuring an IPv6 multicast boundary on interfaces, check the IPv6 multicast routing table and information about the multicast boundary on the interfaces to verify that the IPv6 multicast network can operate normally.

  • Run the display multicast ipv6 routing-table [ ipv6-source-address [ mask ipv6-source-mask-length ] | ipv6-group-address [ mask ipv6-group-mask-length ] | incoming-interface { interface-type interface-number | register } | outgoing-interface { { exclude | include | match } { interface-type interface-number | register | none } } ] * [ outgoing-interface-number [ number ] ] command to check the IPv6 multicast routing table.
  • Run the display multicast ipv6 boundary [ ipv6-group-address [ ipv6-group-mask-length ] ] [ interface interface-type interface-number ] command to check information about the IPv6 multicast boundary configured on an interface.
Updated: 2019-04-20

Document ID: EDOC1100074724

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