User`s guide

Reporter
Network Health Graphs: Statistics
94 5967–9446
Table 6 Network Health Statistics: T1/E1 Signaling
Statistic Description
Alarm Indication
Signal Defect*
Number of Alarm Indication Signal Defects or Blue
Alarms.
Bursty Errored
Seconds
Number of type B (bursty) errored seconds that
occurred.
Controlled Slip
Seconds
Number of seconds containing one or more controlled
slips.
Degraded Minutes Number of minutes in which the estimated error rate
exceeds 0.000005 but does not exceed 0.002.
Error Rate* Total Errors divided by Total Frames; lets you compare
errors from multiple data sources regardless of the
frame rate
Errored Seconds Number of seconds for which any of the following
occurred:
ESF and E1-CRC links with one or more Path Coding
Violations.
One or more Out of Frame Defects.
One or more controlled slips events.
A detected AIS defect.
Far End Loss of
MultiFrame*
E1 only. Number of Far End Loss of MultiFrame
failures (LOMF). A Far End LOMF failure is declared
when bit 2 of TS16 of frame 0 is received set to one on
two consecutive occasions.
In Frames*
Out Frames*
Number of frames for each direction, including errored
frames.
In Octets*
Out Octets*
Number of octets for each direction, including octets
from errored frames.
In Utilization %
Out Utilization %
In Octets or Out Octets divided by the media speed,
expressed as a percentage.
Line Coding
Violations*
Number of times either a Bipolar Violation (BPV) or
Excessive Zeroes (EXZ) Error Event occurred.
Line Errored Seconds Number of seconds for which one or more Line Coding
Violations occurred. Not incremented during an
unavailable second.
* Statistic is shown
in Network Health
graphs as aver-
age units/second