Cisco CCNA (200-301)Network AccessMedium
A network engineer is configuring a new Wireless LAN Controller (WLC) and needs to ensure that it can receive management traffic from Access Points (APs) and also serve client traffic to VLANs 10, 20, and 30. The WLC has a management interface, an AP-manager interface, and multiple dynamic interfaces for client VLANs. Which WLC interface type is primarily responsible for handling CAPWAP control and data plane traffic for access points?
- AManagement Interface
- BAP-Manager Interface
- CService Port Interface
- DDynamic Interface (VLAN)
Show answer & explanationAnswer & explanation
Correct answer: B. AP-Manager Interface
The AP-Manager interface on a WLC is specifically designed to handle CAPWAP control and data plane traffic from Access Points. While the Management Interface can optionally serve this role, the AP-Manager is the dedicated type for it, especially when multiple AP-Managers are used for scalability.
Why the other options are wrong
- A. The Management Interface handles WLC management, not primarily AP CAPWAP traffic.
- C. The Service Port Interface is out-of-band management and not for AP CAPWAP traffic.
- D. Dynamic Interfaces are for client VLAN traffic, not AP CAPWAP traffic.
WLC AP-Manager Interface
The AP-Manager interface on a Cisco Wireless LAN Controller (WLC) is a logical interface specifically configured to handle CAPWAP control and data plane traffic between the WLC and its managed Access Points (APs).
- Dedicated for AP communication.
- Can have multiple AP-Manager interfaces for load balancing.
- Supports CAPWAP data and control tunnels.
Memory trick: M.A.D. S. - Management, AP-Manager, Dynamic, Service