13-35
IM AQ1300-01EN
Y.1564 T
est
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App
Index
Statistics Counter and Error Detection History
During measurement, the statistical information of the frames that are transmitted from and received
by the measurement port and the status of error detection are displayed here.
• Transmission and Reception Rates
During measurement, the transmission and reception rates are indicated (as percentages).
• Normal Frames
The number of normal frames that have been sent and received during a single measurement
period is indicated.
• Received Frame Length
The currently received frame length is indicated as an average over 1-second intervals.
• Error Detection History
From the start of measurement to the time that measurement is stopped, link errors and L2
errors (L2 frame errors) are displayed here as they are detected.
Display
Item
Display
Explanation
LINK ERR LINK ERR (gray) No linkdowns have been detected during measurement.
LINK ERR (red) If even one linkdown is detected during measurement, the indication becomes
red.
L2 ERR
L2 ERR (gray)
During measurement, no frames have been received with any of the following
errors.
CRC errors
Undersize errors
Oversize errors
Symbol errors
Alignment errors
L2 ERR (red)
During measurement, if even one frame is received with any of the following
errors, the indication becomes red.
CRC errors
Undersize errors
Oversize errors
Symbol errors
Alignment errors
13.10 Starting Measurement
