March 2009
Beginner to intermediate
144 pages
3h 13m
English
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Cisco Discovery Protocol
Switched networks get very complex very quickly. When you have an office with switches in several different locations and wires running every which way, you can easily lose track of which switch is plugged into which port. Cisco Discovery Protocol (CDP) lets the admin identify which Cisco devices are attached to which port on a switch. While CDP does not replace the need to document how your network is wired together, it does replace having to go fetch the documentation when you're logged in to the switch.
To see where your switches are attached, log into your switch and run show cdp neighbors.
Switch4>sho cdp ne Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater, ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.