Which capability is unsupported by the service port on a Cisco WLC?
A. RADIUS
B. CAPWAP
C. TACACS+
D. CDP
Answer (2)
The capability unsupported by the service port on a Cisco WLC is CDP (Cisco Discovery Protocol). The service port supports protocols like RADIUS, TACACS+, and CAPWAP, which are essential for device management and authentication. Therefore, the correct answer is option D: CDP.
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The question is about the service port on a Cisco Wireless LAN Controller (WLC) and which capability is unsupported by it.
A Cisco Wireless LAN Controller (WLC) is a device that is used to manage and control wireless access points in large network environments. It helps in managing connections, security policies, and various network settings for wireless devices.
Looking at the options provided:
RADIUS (Remote Authentication Dial-In User Service): This protocol is often used to manage authentication, authorization, and accounting for users trying to access a network. It's typically used on network devices to allow users to authenticate using an external server or service.
CAPWAP (Control and Provisioning of Wireless Access Points): This is a protocol used for encapsulating the communication between wireless access points and a WLAN controller. It allows the WLC to control access points and manage the communication.
TACACS+ (Terminal Access Controller Access-Control System Plus): This is a protocol used for network device management. It provides centralized authentication and authorization services over the network.
CDP (Cisco Discovery Protocol): This is a proprietary protocol developed by Cisco to discover information about other directly connected Cisco devices.
For a Cisco WLC, the service port is a management interface used for out-of-band management tasks like conducting initial configuration. It's not designed for regular network traffic handling.
Option B) CAPWAP is not supported by the service port. The CAPWAP protocol is used for data plane and control plane communication between the access points and the WLC itself rather than for managing the controller via the service port. The service port is used more for local management and not for control and provisioning of wireless access points.
Therefore, the correct answer is B) CAPWAP .
