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Zorluk: OrtaAP and WLC Management Access Connections

An administrator is connecting a Cisco Lightweight Access Point (LAP) operating in Local mode to an enterprise access switch. The Wireless LAN Controller (WLC) hosts multiple WLANs mapped to different client VLANs, including VLAN 10 for Corporate and VLAN 20 for Guest traffic. How should the switch port directly connected to this Local mode Access Point be configured on the access switch?

  1. Configure the switch port as an access port assigned to the AP management VLAN, because all client traffic is encapsulated within CAPWAP and tunneled to the WLC.Cevap
  2. B
    Configure the switch port as an 802.1Q trunk port allowing VLAN 10 and VLAN 20, because Local mode APs must locally tag client traffic onto the access switch.
  3. C
    Configure the switch port as an 802.1Q trunk port with Spanning Tree PortFast enabled across all client VLANs to prevent CAPWAP discovery timeouts.
  4. D
    Configure the switch port with dynamic trunking protocol (DTP) set to desirable to automatically negotiate 802.1Q trunking with the AP's management interface.

Cevap

The switch port connected to the AP should be configured as an access port assigned to the AP management VLAN because all client traffic is encapsulated within CAPWAP tunnels and sent directly to the WLC.
When a Cisco Access Point is configured in Local mode, all wireless user traffic is encapsulated within CAPWAP data tunnels and sent directly to the Wireless LAN Controller. The WLC handles mapping the wireless SSIDs to their respective VLANs (such as Corporate and Guest) on its own physical/dynamic interfaces connected to the core/distribution switch. Consequently, the access switch port connecting the AP needs only to belong to the AP management VLAN, which is best configured as a standard access port.

Adım Adım Çözüm

1
Analyze the operational mode of the Access Point.
The Access Point operates in Local mode.
Local mode is the default Cisco AP mode where all wireless client traffic, control messages, and management traffic are encapsulated in CAPWAP tunnels between the AP and the WLC.
2
Evaluate the VLAN mapping and switching requirements for Local mode APs.
Client VLAN tags are processed inside the CAPWAP payload at the WLC, not at the AP's switch port.
Because the AP does not locally break out or switch client traffic onto the local switch, the switch port connected to the AP only needs to provide IP reachability for the AP's own management interface via CAPWAP.
3
Determine the appropriate switch port configuration.
Configure the switch port as a L2 access port in the AP management VLAN.
An access port provides standard untagged connectivity for the AP to receive an IP address and form a CAPWAP tunnel with the WLC management interface.

Anahtar Kavram

Local Mode AP switchport requirements versus FlexConnect Mode
Tahmini Süre:1m 15s
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AP and WLC Management Access Connections

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