Preventing unjoined multicast traffic
For more information about unjoined multicast traffic, see Unjoined multicast traffic.
Syntax:
no igmp filter-unknown-mcast
Enables interface isolation for unjoined multicast groups. IGMP is configured so that each interface with IGMP enabled will have a data-driven multicast filter associated with it, preventing unjoined IP multicast packets from being flooded. A reboot is required for the change to take effect.
Default: Disabled