Which protocol does an access point use to draw power from a connected switch?
The protocol that an access point uses to draw power from a connected switch is called the Cisco Discovery Protocol (CDP). CDP is a proprietary protocol developed by Cisco that enables network devices to share information about each other, including device type, capabilities, and connectivity.
When an access point is connected to a Cisco switch, it can use CDP to request power from the switch, and the switch can use CDP to determine how much power to allocate to the access point based on its capabilities and power requirements.
CDP operates at the data link layer (Layer 2) of the OSI model and is supported by most Cisco switches and routers. It is enabled by default on most Cisco devices, but it can be disabled if necessary.
Other protocols mentioned in the answer choices, such as the Internet Group Management Protocol (IGMP), Adaptive Wireless Path Protocol (AWPP), and Neighbor Discovery Protocol (NDP), are not used for power negotiation between a switch and an access point. IGMP is used for multicasting, AWPP is a proprietary protocol developed by Ruckus Wireless for wireless mesh networks, and NDP is used for IPv6 address resolution.