Programming application-defined multipath TCP schedulers
Alexander Frömmgen, Boris Koldehofe · 2017
Multipath TCP is the de facto multipath protocol in today's Internet. In this demo, we show how the recently proposed ProgMP programming model for Multipath TCP scheduling enables application- and preference-aware Multipath TCP scheduling within the Multipath TCP Linux Kernel. We use ProgMP to systematically derive the specification of a novel scheduler which retains an application-specific acceptable round-trip time and subflow preferences. This scheduler only utilises non-preferred (e.g., metered cellular) subflows if all preferred subflows (e.g., WiFi) do not retain the acceptable upper round-trip time. We further evaluate this novel scheduler by executing the scheduler specification within the ProgMP runtime in the Multipath TCP Linux Kernel.