Jun 18, 2018 | Blog, Network Testing
Whenever you are setting up a network, changing a network, or optimizing a network, things always end up going wrong. When things aren’t working as expected, the best thing you can do is to take a packet capture (pcap) and look at what’s actually going on....
Dec 1, 2017 | Blog, Network Testing
Let’s say you want to set up a test network. You have your client, your server, your device under test (in our case, our WarpTCP proxy), and one or two tc boxes. The tc boxes are just little linux boxes with bridged interfaces set up to forward traffic. Plus we...
Sep 25, 2017 | Blog, Network Testing
Struggling with poor network performance? Try This Now This is part 2 of a series. Click here to read part 1. Parallel cURL Testing To perform multiple curl transfers in parallel, we need to look at another tool: xargs. If you aren’t familiar with xargs, it is a...
Aug 11, 2017 | Blog, Network Testing
Struggling with poor network performance? Try This Now Overview The cURL program is widely available across many different platforms, which makes it an obvious choice for network testing. It is simple, scriptable, and flexible – which is why it is so powerful. It...
Jul 27, 2017 | Blog, Network Testing
Struggling with poor network performance? Try This Now In order to emulate certain network conditions, we often use a Linux tool called “tc” that works with a discipline called “netem” (among others). The tc program allows us to do many...
