IFA Latency Analyzer feature measures round trip time(RTT) and per-hop latency( residence time) between source and destination switches by sending IFA(Inband Flow Analyzer) probes. On Switch A, in this version of script, packet is first redirected to an internal loopback interface and latency is measured as time duration between the time the packet ingresses internal loopback port to time it egresses out of the interface connected Switch B in the chip pipeline.

TOI EOS 4.35.2F IFA Latency Analyzer