The evpn enhancement port command sets the UDP port number used by the PEs in active-active mode to negotiate the EVPN prune status.
The undo evpn enhancement port command cancels the setting.
By default, no UDP port number is set for the PEs in active-active mode to negotiate the EVPN prune status.
Usage Scenario
In the DCI or CloudVPN active-active scenario, BUM traffic is sent to PEs in active-active mode. However, a CE requires only one copy of BUM traffic from the PEs, and the other copy of the traffic needs to be blocked. To prevent the CE from receiving duplicate BUM traffic after the faulty PE recovers, run the evpn enhancement port command on the active-active PEs so that they can negotiate one link to forward traffic to the CE.
Precautions
This command applies only to the Admin-VS.