Which interface is commonly used for out-of-band management on a WLC?

Which interface is commonly used for out-of-band management on a WLC?

• A. Service port interface
• B. AP manager interface
• C. Virtual interface
• D. Management interface

Answer: (A)

Out-of-band management uses a dedicated path separate from regular data traffic. On a Wireless LAN Controller, the service port interface is the dedicated physical port you use for administration over its own management network. This setup lets you reach and manage the WLC even if the main data network or APs are down, because the management path is isolated from the everyday user traffic. That dedicated port is typically on a separate IP subnet and often connects through its own switch path, which is why it’s the go-to choice for OOB access. The other interfaces serve different roles: the AP manager interface handles control traffic between the WLC and APs as part of the in-band management path; the virtual interface is a logical construct used for VLAN-based management and control traffic within the data network; and the management interface is the primary in-band management path the WLC uses on its usual network.

Out-of-band management uses a dedicated path separate from regular data traffic. On a Wireless LAN Controller, the service port interface is the dedicated physical port you use for administration over its own management network. This setup lets you reach and manage the WLC even if the main data network or APs are down, because the management path is isolated from the everyday user traffic. That dedicated port is typically on a separate IP subnet and often connects through its own switch path, which is why it’s the go-to choice for OOB access.

The other interfaces serve different roles: the AP manager interface handles control traffic between the WLC and APs as part of the in-band management path; the virtual interface is a logical construct used for VLAN-based management and control traffic within the data network; and the management interface is the primary in-band management path the WLC uses on its usual network.