EXFO Power Blazer 88000 Series, User Manual

Page: 477 / 803

Test Results
Power Blazer
465
Streams - Latency
Streams - Latency
From the
Test
menu, tap
Results
,
Streams
, and the
Latency
tab.

The P1 and P2 buttons, available with Dual Port topology, allow
respectively displaying results for port #1 (
P1
) or port #2 (
P2
).

Stream : Indicates the stream identification number.

Latency (ms)
is measured for each stream on all valid frames (valid
Latency tag, expected originator identifier value, and no FCS error)
received.
Current
,
Average
,
Minimum
, and
Maximum
round-trip
latency (delay) are reported.
Note:
Latency statistics are only available in loopback test topology.
Note: Delay measurements smaller than 15 μ s will be discarded, not used for the
sampling process, and < 0.015 will be displayed. For the Current value,
Not measurable is displayed when no delay has been measured in the last
second.

Thresholds button allows setting the pass/fail thresholds (refer to QoS
Metrics
on page 321).