Running a multicast in debug mode:
Timeout notAnswered=[0,1] notReady=[0,1] nrAns=0 nrRead=0 nrPart=2 avg=30079 bytes= 39 033 904 re-xmits=0000000 (0.0%) slice=1024 73 709 551 615 - 0

But both clients running with ~60MB/min