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Difficulty: MediumAP and WLC Management Access Connections

A network engineer is configuring network interfaces on a Cisco Wireless LAN Controller (WLC) to support enterprise wireless operations and administrative access. Which two statements accurately describe the operational roles and switch connectivity requirements of the WLC Management Interface compared to the Service Port? (Select TWO.)

  1. The Management Interface terminates CAPWAP tunnels for lightweight AP communication and supports in-band administrative access via web GUI and SSH.Answer
  2. The Management Interface typically connects through a distribution port to an 802.1Q trunk port on the switch to transport tagged VLAN traffic.Answer
  3. C
    The Service Port serves as the primary CAPWAP data tunnel endpoint for Local mode Lightweight APs during client traffic forwarding.
  4. D
    The Service Port requires 802.1Q trunking enabled on its physical interface to manage multiple wireless client VLANs simultaneously.

Answer

The WLC Management Interface terminates CAPWAP tunnels for lightweight AP communication while supporting in-band management, and it connects through a distribution port to an 802.1Q trunk port on the switch to transport tagged VLAN traffic.
The WLC Management Interface handles in-band management duties (GUI, SSH, SNMP) as well as CAPWAP control and data tunnel termination between APs and the controller. Because it resides on the WLC distribution port array, it connects to standard 802.1Q switch trunk ports configured with specific VLAN tags.

Step-by-Step Solution

1
Identify the primary functions of the WLC Management Interface.
The Management Interface is an in-band logical interface used for administrative access (HTTP/HTTPS, SSH, SNMP) as well as establishing CAPWAP control and data tunnels with joined Access Points.
It acts as the default gateway address for controller communications across the enterprise network.
2
Analyze switchport connectivity for distribution system interfaces.
WLC distribution ports connect to switch ports configured as 802.1Q trunks so multiple logical interfaces (Management and Dynamic VLANs) can share physical links.
Trunking allows tagged frame transport across the underlying wired infrastructure.
3
Evaluate the Service Port constraints to eliminate incorrect options.
The Service Port is an out-of-band interface on an isolated physical port used for initial setup and recovery; it does not process CAPWAP traffic nor support 802.1Q VLAN trunking.
Distinguishing between in-band distribution interfaces and out-of-band physical interfaces ensures correct interface and trunking configurations.

Key Concept

WLC Management Interface vs. Service Port Operational Roles
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Topics

AP and WLC Management Access Connections

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