Cisco Discovery Protocol

In this article we will discuss Cisco Discovery Protocol, will make brief discussion on Cisco Discovery Protocol, last article we discuss about PDH.

Cisco Discovery Protocol (CDP) is a proprietary Data Link Layer protocol developed by Cisco Systems. It is used to share information about other directly connected Cisco equipment, such as the operating system version and IP address.

The Cisco Discovery Protocol, which runs on Cisco devices, is used to help network-layer protocols learn about each other and determine how the connected devices are configured. The Cisco Discovery Protocol runs on all Cisco equipment, including routers and switches.

Devices that receive CDP announcements will process them and hold on to them for a specified amount of time. CDP announcements are sent to a multicast address, and because CDP is a Layer 2 protocol, none of these packets are routed.

To enable Cisco Discovery Protocol (CDP) on an interface, use the cdp enable command in interface configuration mode. To disable CDP on an interface, use the no form of this command. Enabled at the global level and on all the supported interfaces. Cisco Discovery Protocol (CDP) is a proprietary Data Link Layer protocol developed by Cisco Systems. It is used to share information about other directly connected Cisco equipment, such as the operating system version and IP address.

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