Enabling IPv6 multicast forwarding on a non-querier interface

Typically, only MLD queriers can forward IPv6 multicast traffic and non-queriers cannot. This prevents IPv6 multicast data from being repeatedly forwarded. If a router interface on the MLD proxy failed the querier election, enable IPv6 multicast forwarding on the interface to forward IPv6 multicast data to downstream receivers.

A shared-media network might have multiple MLD proxies, including one proxy acting as a querier. To avoid duplicate IPv6 multicast traffic, do not enable IPv6 multicast forwarding on any of the non-querier MLD proxies for the network.

1. Enter system view.

   system-view

2. Enter interface view.

   interface interface-type interface-number

3. Enable IPv6 multicast forwarding on a non-querier interface.

   mld proxy forwarding

   By default, IPv6 multicast forwarding is disabled on a non-querier interface.