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Tag Archives: cisco
Remote Cisco Router Change Safty Net
In the networking world you have a lot of opportunity to break things and take down entire buildings, WAN links, etc. Even less risky changes can result in a short break in connectivity while routing protocols re converge and so on. Because we often don’t have physical access to both sites while we are making WAN changes there has to be some type of worst case scenario prevention method. This is it: When making changes to WAN links in particular I always like to make the change to the far side first and obviously have to if there will be … Continue reading
Testing throughput with TTCP and Cisco Devices
Even if you have been around networking for a while you may have never ran into the TTCP utility. This utility also comes by the name of PCATTCP. It’s a really small command line, data sending, and throughput testing tool. It sends as much data as possible to another remote instance of TTCP. Cisco devices with newer IOS software (11.2 and newer, so a lot of old stuff too by that standard…) and advanced feature sets such as service provider and advanced IP services include this tool, according to the old Cisco documentation I’ve read. This tool was present on … Continue reading
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