Latency measurements, Buffer-to-buffer credit – EXFO FTB-8500 Series for FTB-200 User Manual
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Traffic Analyzer Tabs
Ethernet and Fibre Channel Application
201
FC Latency
Latency Measurements
Round Trip Delay
Maximum: Indicates the maximum time taken for a bit to travel from
the FTB-8500 Series and FTB-8120NGE/8130NGE transmitter back to its
receiver after crossing a far-end loopback test set.
Minimum: Indicates the minimum time taken for a bit to travel from
the FTB-8500 Series and FTB-8120NGE/8130NGE transmitter back to its
receiver after crossing a far-end loopback test set.
Average: Indicates the average time taken for a bit to travel from the
FTB-8500 Series and FTB-8120NGE/8130NGE transmitter back to its
receiver after crossing a far-end loopback test set.
Last: Indicates the last time taken for a bit to travel from the FTB-8500
Series and FTB-8120NGE/8130NGE transmitter back to its receiver after
crossing a far-end loopback test set.
Samples: Indicates the number of samples used for the Round Trip
Delay test.
Unit: Allows the selection of the unit for the Latency measurement
values. Choices are s, ms, and μs. The default setting is ms.
Buffer-to-Buffer Credit
Estimated BB_Credit: Estimated BB_Credit indicates the estimated
number of frame buffers that the remote port has available to receive
frames based on the round trip latency measurements.