OK: top.fastToSlow2 send and receive counts are Equal  4951 vs  4951
OK: top.fastToSlow1 send and receive counts are Equal 11902 vs 11902
OK: top.slowToFast1 send and receive counts are Equal 12518 vs 12518
OK: top.slowToFast2 send and receive counts are Equal 16633 vs 16633