Enabling multicast forwarding on a non-querier interface
About multicast forwarding capability of a non-querier interface
Typically, only IGMP queriers can forward multicast traffic and non-queriers cannot. This prevents multicast data from being repeatedly forwarded. If a router interface on an IGMP proxy device failed in the querier election, enable multicast forwarding on the interface to forward multicast data to attached receiver hosts.
Restrictions and guidelines
A shared-media network might have multiple MLD proxies, including one proxy acting as a querier. To avoid duplicate multicast traffic, do not enable multicast forwarding on any of the non-querier MLD proxies for the network.
Procedure
Enter system view.
system-view
Enter interface view.
interface interface-type interface-number
Enable multicast forwarding on the interface.
igmp proxy forwarding
By default, multicast forwarding is disabled on a non-querier interface.