Custom Open vSwitch Actions
A short tutorial on extending Open vSwitch.
For a project I've been working on (reimplementing some [past work] (https://doi.org/10.1016/j.engappai.2015.01.013)), being able to easily enable pushback at various points in the network is fairly important. For this, I wanted to try something I'd both learn from and be able to use as a springboard for later development and testing – mininet (and by extension, Open vSwitch) seemed like a good fit. Part of this requires a new feature to be hacked on top of OpenFlow: probabilistic packet dropping. I've written this short walkthrough/tutorial on the process for the benefit of anyone looking to make their own modifications. A full repository is included [here] (https://github.com/FelixMcFelix/ovs/tree/ppd).
[EDIT 2019-03-27]: Updated for OVS revision 8e73833.