How does CAPWAP communicate between an access point in local mode and a WLC?
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A. B. C. D.D.
CAPWAP stands for Control and Provisioning of Wireless Access Points, which is a protocol used by Cisco wireless controllers (WLCs) to manage and control wireless access points (APs). CAPWAP allows the WLC to manage the configuration and operation of the APs, including firmware updates, security policies, and other network settings.
When an AP is in local mode, it operates as a standalone device and is not associated with a WLC. To connect an AP in local mode to a WLC, CAPWAP is used to establish a connection between the two devices.
To answer the question, option B is the correct answer. When an AP is in local mode, it must be connected to the same switch as the WLC in order to communicate via CAPWAP. This is because CAPWAP uses UDP as its transport protocol and relies on Layer 2 connectivity between the AP and the WLC. When the AP and WLC are connected to the same switch, they are on the same VLAN and can communicate with each other using Layer 2 addressing.
Option A is incorrect because an AP in local mode can be connected to the wired network without causing a loop. However, if the AP and WLC are on different switches, additional configuration may be required to ensure that the CAPWAP traffic is forwarded correctly.
Option C is incorrect because a direct copper connection between the AP and WLC is not necessary for CAPWAP communication. As mentioned, CAPWAP relies on Layer 2 connectivity between the devices, which can be achieved through a switch.
Option D is also incorrect because an AP in local mode cannot link to any switch in the network and assume connectivity to the WLC. The AP must be connected to the same switch as the WLC or have Layer 3 connectivity to the WLC, which would require additional configuration.