I was delighted when DCCP appeared: https://en.wikipedia.org/wiki/Datagram_Congestion_Control_Protocol https://en.wikipedia.org/wiki/Datagram_Congestion_Control

I was delighted when DCCP appeared: https://en.wikipedia.org/wiki/Datagram_Congestion_Control_Protocol https://en.wikipedia.org/wiki/Datagram_Congestion_Control_Pr... It focuses narrowly on a congestion control protocol, and is intended to be combined which whichever datagram-based protocol you have lying around that might be suffering from congestion issues.