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Configure MLD snooping Basic Functions

In the configuration tasks of MLD snooping, first enable the MLD snooping function so that the configurations of the other functions can take effect.

Configuration Condition

Before configuring the basic functions of MLD snooping, first complete the following tasks:

  • Configure VLAN

Enable MLD snooping Function

After the MLD snooping function is enabled, the MLD snooping function can run on the device.

Table 10-2 Enable the MLD snooping function

Step

Command

Description

Enter global configuration mode

configure terminal

-

Enable the global MLD snooping function

ipv6 mld snooping

Mandatory

By default, do not enable the global MLD snooping function.

Enable the MLD snooping function of the specified VLAN

ipv6 mld snooping vlan vlan-id

Mandatory

By default, do not enable the MLD snooping function in the VLAN.

note


  • After the global MLD snooping function is enabled, the MLD snooping function of the specified VLAN can be enabled.

Configure MLD snooping Version

The configured MLD snooping version and MLD protocol packet processing rules are as follows:

When the configured MLD snooping version is V2, the device can process the MLD protocol packets of V1 and V2.

When the configured MLD snooping version is V1, the device can process the MLD protocol packets of V1, but does not process the V2 protocol packets, which flood in the VLAN.

Table 10-3 Configure MLD snooping version

Step

Command

Description

Enter global configuration mode

configure terminal

-

Configure the MLD snooping version

ipv6 mld snooping vlan vlan-id version version-number

Optional

By default, the version of MLD snooping is 2.

Enable MLD snooping MAC Forwarding

Usually, MLD snooping forwards the multicast packets in the VLAN according to the destination MAC address. After configuring MLD snooping MAC forwarding, MLD snooping forwards the multicast packets in the VLAN according to the multicast source MAC address and multicast destination MAC address.

Table 10-4 Enable MLD snooping MAC forwarding

Step

Command

Description

Enter global configuration mode

configure terminal

-

Enable the L2 multicast MAC forwarding function in the specified VLAN

ipv6 mld snooping vlan vlan-id l2-forwarding

Mandatory

By default, enable MLD snooping L2 multicast IP forwarding function of VLAN.