EXFO FTB-800 Series for FTB-1 - Manual (Page 380)

Test Results
370 FTB-700G/800 Series
Summary (TCP Throughput)

Window Size displays respectively the last, minimum, and maximum
TCP window size.

Round Trip Latency displays respectively the last, minimum,
maximum, and average round trip time gathered from the TCP
Throughput test.
Ethernet Traffic
Note: See Traffic - Ethernet on page 376 for more information.