A. Supported networking: WAC dual-node hot standby (VRRP dual-node hot standby or dual-link hot standby), and dual-border port sub-networking, recommended dual-node VRRP hot standby: In multi-campus interconnection LAN-WAN convergence scenarios, refer to the following topology

B. During wireless local forwarding, only the management IP address needs to be communicated between the WAC and the border, that is, the underlay is connected.

C. In the overlay interconnection solution, it is recommended to run the VRRP VRRP virtual address between the two borders as the gateway for wireless users

D. During wireless centralized forwarding, the WAC and the border need to manage IP communication and service VLAN communication, that is, the underlay and overlay need to be connected.