THE Technical Conference on Linux Networking

Netdev 0.1


talk | TC Classifier Action Subsystem Architecture

Jamal Hadi Salim

This talk is about the Linux Traffic Control (tc) filter-action subsystem. Although it has been around for about a decade, this subsystem was never formally documented. Given that two other netdev01 talks refer to this subsystem, we feel obligated to discuss the history, architecture and usage of tc filter-actions. We will describe the packet-processing-graph architecture and the underlying extensibility offered; we will further discuss the formal "graph language" that makes it an awesome packet processing architecture (in our view is still technically ahead of heavily marketted approaches like P4 or OF).

slides: /docs/hadi-salim-TC-act-arch-slides.pdf