User`s guide

6. Monitoring and Troubleshooting
7990-A2-GB20-00 May 2002
6-15
CSS (Controlled Slip Seconds):
Seconds during which one or more
controlled slips (as defined in TR 54016) occurred.
LOF (Loss of Frame Seconds):
Contains the number of seconds that contain
one or more LOF events. Maximum value is 900.
Status:
Contains the contents of the status events register. The status events
register maintains a history of specific events that have occurred during an
interval. Values include:
—
Y
: Remote alarm indication signal received at the G.703 interface
—
L:
Loss of signal detected at the G.703 interface
—
E:
Excessive error rate threshold exceeded
—
F:
Frame synchronization bit error detected
—
V:
Line code violation detected
—
None:
No significant events have occurred
Use the virtual function keys to page through the intervals and clear statistics.
This Field . . . Contains . . .
Current Interval Timer The number of seconds which have elapsed in the current
15-minute interval. Maximum value is 900 seconds
(15 minutes). This counter resets every 15 minutes.
Error Events Counter A running total of CRC and OOF events. Total range =
0–65535. Counter resets when the statistics are cleared.
Current Int Performance data for the current 15-minute interval.
Interval
xx Historical performance data for up to 96 15-minute intervals
(24 hours) where the value of
xx is from 01 to 96.
Worst Interval The number of the interval with the worst (highest) performance
data. If two or more intervals are equal, the oldest interval is
displayed.
Tot A 24-hour running total.