Examkin

Question

Difficulty: MediumAP and WLC Management Access Connections

A network administrator is configuring out-of-band management access for a Cisco Wireless LAN Controller (WLC). The administrator connects the WLC Service Port to an isolated management network while connecting the WLC Management Interface to an 802.1Q trunk port on the distribution switch. Which operational characteristic uniquely applies to the Service Port on a Cisco WLC?

  1. It operates strictly out-of-band, supports only untagged traffic, and maintains a dedicated default gateway separate from the main controller routing table.Answer
  2. B
    It supports 802.1Q VLAN tagging to multiplex traffic for multiple management VLANs across a single physical link.
  3. C
    It terminates CAPWAP control and data tunnels generated by Lightweight Access Points operating in Local mode.
  4. D
    It acts as a backup gateway for client data traffic whenever Lightweight Access Points transition into FlexConnect standalone mode.

Answer

The Service Port operates strictly out-of-band, supports only untagged traffic, and maintains a dedicated default gateway separate from the main controller routing table.
The Cisco WLC Service Port provides dedicated out-of-band management capability. It is completely isolated from the controller's data plane, does not support 802.1Q VLAN tagging (untagged traffic only), and maintains its own independent default gateway settings separate from the controller's main routing table.

Step-by-Step Solution

1
Identify the primary role and architecture of the WLC Service Port.
The Service Port is a dedicated, physical, out-of-band management interface isolated from client and AP CAPWAP traffic.
Out-of-band management ports provide access for administrative GUI/CLI tasks even during main network or controller interface outages.
2
Evaluate framing and encapsulation requirements for the Service Port.
The Service Port only accepts untagged Ethernet frames (802.1Q tagging is not supported).
It connects to an access port on an isolated management network switch.
3
Analyze routing behavior for out-of-band traffic vs in-band traffic.
The Service Port uses a separate, independent default gateway configuration specifically defined for service port management traffic.
Traffic arriving on the Service Port must route back out through its own gateway rather than using the controller's main system routing table.

Key Concept

Cisco WLC Service Port vs Management Interface characteristics
Estimated Time:1m 30s
Rate this question

Topics

AP and WLC Management Access Connections

More questions from this topic