When inbound strongly typed message callback is called the T2 timestamp is called and the counter is analyzed.
If it is 1 then the inbound latency is equal to T2-T1. If it is greater than 1 it means that there was TCP fragmentation so the latency cannot be calculated properly. If it is 0 it means that more than one SBE messages were received in one IP package and the latency cannot be calculated properly. In any case the counter should be set back to 0.