An engineer is cabling a centralised AireOS wireless LAN controller into the campus and reviewing how its access points and the wired network connect to it in a split-MAC design. Which two statements correctly describe the physical and management connections of these WLAN components? Select TWO.
- AThe lightweight access points reach the controller through CAPWAP tunnels carried over the routed wired network rather than a direct cable to it. Correct
- BA controller distribution-system port connects to the wired switch and carries both client data and CAPWAP traffic to and from the joined access points. Correct
- CThe controller service port is the data uplink that carries production client traffic and CAPWAP tunnels between the controller and the access points.
- DEach access point must be cabled directly to a dedicated port on the controller chassis before it is able to serve any of its wireless clients.
- EThe access points provide the controller with its uplink into the wired distribution layer and relay the controller management traffic upstream.
Why A is correct: In a centralised split-MAC design the APs encapsulate control and client traffic in CAPWAP and tunnel it to the WLC across the existing wired infrastructure, so no dedicated AP-to-WLC cabling is required.
Why B is correct: Distribution-system ports are the data-plane uplinks that attach the controller to the switched network and carry the CAPWAP and client traffic for the APs that have joined it.
Why C is wrong: The service port is tempting because it is a physical controller port, but it is an out-of-band management interface for initial setup and recovery and does not carry client data or CAPWAP traffic.
Why D is wrong: This sounds plausible to someone picturing a wired hub, but lightweight APs join the controller over the routed network through CAPWAP and are not individually patched into the controller.
Why E is wrong: This reverses the roles: the controller connects to the wired network through its own distribution-system ports, and the APs depend on that network to reach the controller, not the other way around.