The arp-proxy local enable command enables local ARP proxy, realizing interconnection between isolated hosts in a BD.
The undo arp-proxy local enable command disables local ARP proxy.
By default, local ARP proxy is disabled.
On a VXLAN, a BD is a broadcast domain. The member interfaces in a BD broadcast the broadcast, unknown unicast, and multicast (BUM) packets within the BD. To minimize broadcast traffic, network administrators usually run the isolate enable command or configure port isolation on the access side to enable access-side isolation. In this way, the access users of the BD are isolated and do not support Layer 2 interconnection. However, with the increase of user services, users have a growing demand for interconnection. To satisfy the demand, network administrators can enable local ARP proxy on a VBDIF interface so that isolated users in a BD can communicate with each other.