A router port sends IGMP Report messages to an upstream Layer 3 device and receives multicast data packets from the upstream device. When IGMP snooping is enabled on a switch, the switch can learn entries of the dynamic router port to monitor the sending of multicast data. When network congestion or flapping occurs, the dynamic router port does not receive General IGMP Query messages before it times out. The switch deletes the interface from the router port list, which will cause service interruption. To avoid service interruption, set a longer aging time.
The system view is displayed.
The VSI view is displayed.
The aging time of dynamic router ports is set.
By default, the aging time of router ports that the switch learns from General IGMP Query messages is 180 seconds.