While all the above applies to the ISDN world, you can also apply some specific tests when encountering ISDN-connected Cisco boxes.

Whenever you find a Cisco router connected to the Internet, private IP networks, PSTN, ISDN, or X.25, the following specific commands (along with, of course, show config or show run and the always useful commands such as show ip route, show cdp neig, and so on) help you get a bigger picture of the ISDN:

• show isdn history

In this way, you may be able to obtain the ISDN number for the machine you are testing, discover more hosts to which the machine is talking via ISDN, and so on.

Was this article helpful?

0 0
The Ultimate Computer Repair Guide

The Ultimate Computer Repair Guide

Read how to maintain and repair any desktop and laptop computer. This Ebook has articles with photos and videos that show detailed step by step pc repair and maintenance procedures. There are many links to online videos that explain how you can build, maintain, speed up, clean, and repair your computer yourself. Put the money that you were going to pay the PC Tech in your own pocket.

Get My Free Ebook

Post a comment