The multicast track vrrp command binds a multicast service interface to a VRRP group, disabling the backup devices in the group from forwarding multicast traffic.
The undo multicast track vrrp command unbinds a multicast service interface from a specified or all VRRP groups.
By default, multicast traffic is not bound to any VRRP group.
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Usage Scenario
In a VRRP-based IGMP hot backup scenario, run the multicast track vrrp command to bind a multicast service interface to a VRRP group, disabling the backup devices in the group from forwarding multicast traffic. When the interface of the master device goes Down, multicast traffic can be switched to the interface of the newly selected master device rapidly.