Cisco Discovery Protocol (CDP) is a link layer discovery protocol that has been integrated into Cisco switches and routers ever since I can remember. Cisco introduced CDP support into their routers ...

Also Read: What are NTP and SNMP network protocols. The 3 main topologies in a computer network are Bus, Ring, and Star Topologies. In a bus topology, all the devices are connected to the main cable.

AJ Dellinger is a writer, reporter, and editor based in Madison, Wisconsin. He has been published in Wired, Gizmodo, CNET, and a variety of other publications. He has covered small business and ...