EXFO FTB-860, User Manual

Page: 205 / 409

1588 PTP Test Setup and Results
NetBlazer
193
Summary (1588 PTP)
Delay Measurement

Sync IPDV meter displays the average of the inter packet delay
variation of consecutive Sync messages in the last second. The value
and the pass/fail verdict is also displayed when enabled.

Delay Req IPDV
meter displays the average of the inter packet delay
variation of consecutive Delay Req messages in the last second. The
value and the pass/fail verdict is also displayed when enabled.
Note: When a value is below 1 μ second, “ < 1 μ s ” is displayed.
Note:
When the Pass/Fail verdict is enabled (see page 189), the green region is
delimited from 0 to the IPDV Threshold (refer to
PTP Alarm
Timeout/Threshold
on page 188) corresponding to a PASS verdict. The red
region beyond the threshold corresponds to a FAIL verdict. There is neither
green nor red region when the Pass/Fail verdict is disabled.
Quality Level

Last QL Received
indicates the last Quality Level received. The
pass/fail verdict is also displayed when both QL Mismatch Monitoring
and
Pass/Fail Verdict
check boxes are selected.

Last Change indicates the date and time of the Last QL change.
Total PTP Messages
Gives respectively the total count of transmitted (TX) and received (RX)
PTP messages.