XTT 5000 User's Manual
Sunrise Tags Notes
Important Sunrise Tag Notes
When Sunrise tags are enabled, a sequence number will be inserted in the payload
of each frame. The sequence number will allow you to detect the number of lost
frames, latency checking, and other important information. This is a Sunrise Telecom
proprietary feature.
•
A frame loss can only be detected when the BERT is running between two
Sunrise Telecom Ethernet testers (XTT 5000, STT or MTT) with the sequence
number tags enabled on each side.
•
Measurements will only display counters for Lost Frames, Duplicate Frames,
and Out-of-Sequence frames if a Sunrise Tags is used.
•
If a stream as enabled SN/TS of the Sunrise Tag and receives STAG on the
incoming traffic, it will lose pattern sync. The reverse is not true; a stream set
for STAG will achieve pattern sync if the incoming stream has a SN/TS tag.
•
XTT 5000 measures the time it takes for each test frame to pass through the
DUT. The value reported for latency only applies when the far end is in
loopback mode.
•
If two test units are performing and end-to-end Throughput test with the
Sunrise Tag enabled, the displayed latency results will not be accurate.
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