Cisco CDP Monitor is very useful for network administrators and network engineers. It is primarily a CDP agent for a Windows host. It is able to use the CDP(Cisco Discovery Protocol) which is a private protocol and is only used in Cisco's devices such as Cisco router, Catalyst switch and so on.

With Cisco CDP Monitor, You can send the information (CPU number and model, host name, user name and the windows version, service pack version) of your host to the connective Cisco device, and you can get and display the information from the device (i.e. the device name, device model, port which is connecting with, administive ip address, IOS version, and so on.) With this information, you can easily know the total topology of your network and you can easily do troubleshooting.