Barefoot networks(https://barefootnetworks.com/ https://barefootnetworks.com/) has programmable switches using their custom designed chips and run using their p

Barefoot networks(https://barefootnetworks.com/ https://barefootnetworks.com/) has programmable switches using their custom designed chips and run using their programming language p4 (http://onrc.stanford.edu/p4.html http://onrc.stanford.edu/p4.html). Its pretty powerful stuff and the chips are about $2000 a pop last I checked