Packet and flow marking homepage is at https://www.scitags.org/

The page has pointers to the recent updates, existing code, technical specification and mailling list. 

Timeline - what can be done this year?

Are UDP fireflies just a proof of concept or something you would like to see deployed on more sites?

What are the plans with implementation using IPv6 flow label? Are developers of all our data transfer middleware aware of packet marking activity? Do they have plans / timelines? External dependencies / constraints (e.g. OS / kernel support)?

Recent presentation on the packet marking and flow labeling efforts https://docs.google.com/presentation/d/1TJyqDL3HD0db72zzcEg034Cv8XPIxd-zdDigIASqMR0/edit?usp=sharing