Question

Difficulty: EasyAP and WLC Management Access Connections

A network administrator needs to perform initial configuration and out-of-band management on a newly deployed Cisco Wireless LAN Controller (WLC). Which WLC interface is specifically dedicated to out-of-band management and network recovery, operating completely isolated from the data traffic processing plane?

  1. Service PortAnswer
  2. B
    Management Interface
  3. C
    Virtual Interface
  4. D
    Dynamic Interface

Answer

The Service Port is the dedicated physical interface reserved for out-of-band management, system restoration, and initial setup on a Cisco WLC.
The Service Port is a dedicated physical port on Cisco Wireless LAN Controllers that provides isolated, out-of-band management capabilities. It operates on its own discrete subnet and interface, allowing administrators to access the controller for initial setup, troubleshooting, or recovery even when the main network links or distribution switches are offline.

Step-by-Step Solution

1
Identify out-of-band management requirements for Cisco WLC architectures.
Recognize that out-of-band traffic must be physically segregated from the in-band data paths and distribution switch ports.
Out-of-band access ensures administrative connectivity remains operational even during network outages affecting main data VLANs.
2
Differentiate between WLC interfaces based on their functional roles.
The Service Port handles out-of-band management, the Management Interface handles in-band management and CAPWAP control, Virtual Interface handles web auth/DHCP relay, and Dynamic Interfaces handle WLAN client traffic.
Cisco controllers separate administrative control planes across distinct physical and logical interfaces.

Key Concept

Cisco WLC Physical and Logical Interface Roles
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