Question about CDP

NorskVind · 05-11-2007, 12:42 AM

Is CDP a protocol that switches use as well?

I managed to brute force this... device, at umm... a place... >>... one day lol.

And I got into terminal configuration and I enabled CDP.

From there, I went back into privileged mode and I used the "Show cdp neighbors" command. The response was a number of devices, so cdp obviously worked after that.

But, all in all, the question is if CDP (Cisco discovery protocol) also a switch protocol?

**johnwill** · 05-11-2007, 08:49 AM

Apparently, only for Cisco products:

http://www.javvin.com/protocolCDP.html

Quote:

Cisco Discovery Protocol (CDP) is primarily used to obtain protocol addresses of neighboring devices and discover the platform of those devices. CDP can also be used to show information about the interfaces your router uses. CDP is media- and protocol-independent, and runs on all Cisco-manufactured equipment including routers, bridges, access servers, and switches.

NorskVind · 05-12-2007, 02:36 PM

Mmm, that's good info.

Quote:

CDP runs on all media that support Subnetwork Access Protocol (SNAP), including local-area network (LAN), Frame Relay, and Asynchronous Transfer Mode (ATM) physical media.

That tells me that CDP can run on a switch too. :)

Cooooolio. Thanks for the help, Cap'n.

05-11-2007, 12:42 AM	#1 (permalink)
NorskVind Registered User Join Date: Oct 2006 Posts: 26 OS: Win XP, Kubuntu My System	Question about CDP Is CDP a protocol that switches use as well? I managed to brute force this... device, at umm... a place... >>... one day lol. And I got into terminal configuration and I enabled CDP. From there, I went back into privileged mode and I used the "Show cdp neighbors" command. The response was a number of devices, so cdp obviously worked after that. But, all in all, the question is if CDP (Cisco discovery protocol) also a switch protocol?