Verilink WANsuite 7205 (34-00317.B) Product Manual - Manual (Page 132)

4-10 W A N s u i t e 7 2 0 5
CAUTION: Performance data will be lost upon power cycle or after performing a
Maintenance Reset/Restart.
Performance Screens
The “Performance” prompt near the bottom of the Network Config screen
displays a Performance 24 Hour screen (Figure 4.8), which provides a summary
of the error events that have occurred during each interval of the past 24 hours.
Figure 4.8 Performance 24 Hour Screen
In addition to the error parameters found in the Error Status and Alarm
Thresholds Table on page 4-8, the following error parameters are included on
the Performance screens:
BES Sets the Bursty Error Seconds (BES) threshold. A BES is a 1-second period
during which more than one but fewer than 320 CRC6 errors occurred.
LOFC The Loss of Frame Count (LOFC) represents the number of times a loss of
frame is declared. A loss of frame is declared after 2.5 seconds of continuous
loss of signal or OOF.
CRCES Sets the Cyclic Redundancy Check Errored Seconds (CRCES) threshold. A
CRC is a method of confirming the integrity of received data.
Select the “Performance 30 Day Prompt” on the above screen to see a
detailed summary of the error events that have occurred during each interval
of the past 30 days (Figure 4.9).