In a scenario where an Ethernet ring network is connected to an EVPN, if an access-side interface on the ring network is configured with a sub-interface bound to a BD and is also enabled to snoop STP TC BPDUs, you need to enable the TC notification function on the interface. In this way, after the interface receives a TC BPDU from the ring network, it can instruct the sub-interface to update ARP and MAC entries in a timely manner.
The system view is displayed.
The interface view is displayed.
The interface is enabled to snoop STP TC BPDUs.
The TC notification function is enabled on the interface.
The configuration is committed.