Whats the default CDP holdtime in seconds for Cisco routers?
A.) 30 seconds B.) 180 seconds C.) 90 seconds D.) 60 seconds Ans B Cisco Discovery Protocol is a proprietary protocol to allow you to access configuration information on other routers and switches with a single command. It uses SNAP at the Data-Link Layer. By default CDP sends out a broadcast every 60 seconds and it holds this information for 180 seconds. CDP is enabled by default.
