Verilink WANsuite 6450, Reference Manual

Page: 45 / 205

W e b S e r v e r I n t e r f a c e 3-17
Figure 3.14 Performance/Summary Screen
In addition to the error parameters found in the Error Status and Alarm
Thresholds Table as described on page 3-15, the following error parameters
are included on the Performance/Summary table:
BES Sets the Bursty Error Seconds (BES) threshold. A BES is a 1-second period
during which at least more than one but fewer than 320 CRC6 errors
occurred.
LOFC The Loss of Frame Count (LOFC) represents the number of time 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.
Beneath the Performance/Summary table are two buttons: “Performance 24
Hour” and “Performance 30 Day.” Clicking either of these buttons will
display a detailed summary of the error events that have occurred during each
15-minute interval of the past 24 hours (Figure 3.15) or during each interval
(day) of the past 30 days (Figure 3.16).