I'm using OMNeT++ 5.6.2 with INET 4.2.1, and I'm working on ECN. I've seen that TCP Reno (in the file TcpReno.cc) checks if the ECE variable is set, in the receivedDataAck function, and acts accordingly. But I've not found anything similar in TCP Tahoe (TcpTahoe.cc) or TCP NewReno (TcpNewReno.cc).
Is the ECN part somewhere else or is it not implemented? Is ECN only supported by TCP Reno in OMNeT++?
Thank you.