March 2009
Beginner to intermediate
144 pages
3h 13m
English
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Extended Pings and Circuit Troubleshooting
Cisco routers can use a variety of ping tests to check IP connectivity to other networks. This is very useful for testing troublesome serial circuits that are not down but that are not actually working properly. At times, a misprovisioned circuit will cause problems that do not appear on sho int, but that cause no end of headaches.
On more than one occasion, I've dealt with a circuit with a perfect-looking interface that passed every standard ping test with flying colors and yet was useless. GIF files could not be moved across these circuits and Windows networking infrastructure protocols would not work over them. In each case, the problem was exactly the same: the circuit was provisioned incorrectly (with ...
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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.