Steinloss:

This is a tool for measuring packages loss, between two endpoint, with a web visualizer.

Usage

On the server end, run:

• pip install steinloss
• python -m steinloss --server

On the probe end, run:

• pip install steinloss
• python -m steinloss --probe --ip-address $IP_OF_SERVER

The server end will host a gui on port 8050, where the stats are visible. It looks like this:

Build and release

To make a new release, go to github release, and draft a new release. A github action will take care of building, and publishing the tar and binary to pypi.

Demo with artificial packet loss

The demo is made for linux
First we install steinloss

pip3 install steinloss

To run a demo of the tool, we're setting up a virtual network on your machine using ip nets. We're making a network n1 and n2 by running

sudo sh demo.sh

Now we would like to run the server on n1 and the probe on n2 This is done with the following commands in two different terminals:

sudo ip netns exec ns1 bash -c "sudo -u $USER python3 -m steinloss -s"

sudo ip netns exec ns2 bash -c "sudo -u $USER python3 -m steinloss -p -i 10.0.0.1"

For example:

To access the browser, we to run a browser in our virtual network like so

sudo ip netns exec ns1 bash -c "sudo -u $USER $BROWSER 127.0.0.1:8050"

Like so:

Now we can modify the packet loss by using the replace command. To set the packet loss to 20%, we run the following command, while everything is running:

sudo ip netns exec ns1 tc qdisc replace dev h1 root netem loss 20%

Cleanup

The virtual networks can be removed again with:

sudo ip netns delete ns1 && sudo ip netns delete ns2

And uninstall steinloss:

pip3 uninstall steinloss