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Configuration Guide - IP Multicast

CloudEngine 8800, 7800, 6800, and 5800 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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Enabling MLD

Enabling MLD

Context

IPv6 multicast routing is the prerequisite for configuring all IPv6 multicast functions. You must enable IPv6 multicast routing before configuring an IPv6 multicast protocol.

Before configuring Multicast Listener Discovery (MLD) on a multicast switch, enable MLD on an interface connected to receiver hosts.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run multicast ipv6 routing-enable

    IPv6 multicast routing is enabled.

  3. Run interface interface-type interface-number

    The interface view is displayed.

  4. 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.

    NOTE:

    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.

  5. Run pim ipv6 sm

    IPv6 Protocol Independent Multicast - Sparse Mode (PIM-SM) is enabled on the interface.

    By default, IPv6 PIM-SM is disabled on an interface.

  6. Run mld enable

    MLD is enabled on the interface.

    By default, MLD is disabled on an interface.

    NOTE:

    An interface of the CE8800, CE7800, CE6800, and CE5800 series switches must run both IPv6 PIM-SM and MLD to forward multicast data packets.

  7. Run commit

    The configuration is committed.

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Updated: 2019-04-20

Document ID: EDOC1100075361

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