Pulling TfL Line Status using REST APIs

The London Underground is the oldest underground train system in the world. Despite its age however, its owners (Transport for London) seemed to have spared no effort to ensure that…

Line Breaks in Python

When learning basic Python, I had to restructure the way I looked at things. An early problem I encountered was the simple task of printing output to new lines, one…

Network Bandwidth Testing using iPerf

From time to time you will find yourself needing to check the actual bandwidth capacity from one endpoint to another. Whether it is to determine any bottlenecks, to carry out…

What is an SVI?

Otherwise known as an ‘Interface VLAN’, an SVI (Switched Virtual Interface) is one of the things that really confused me when I first started studying for my CCNA. VLANs as…

Packet Capture on Cisco 9300 Switches

Cisco’s 9300 line of Switches are a welcome upgrade to the line-up. Recently I discovered that they have the ability to capture packets on the Switch themselves (specifying a port)…

Confirming Your Current User Account

When working on Linux, you might not always be able to see which user you are logged in as by default, or perhaps you want confirmation before making a change.…

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