Agilent Technologies J3972A User's Guide Page 96

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Reporter
Network Health Graphs: Statistics
5967–9446 95
Loss of Frame* Number of Loss of Frame (LOF) failures. A LOF is
declared when an Out of Frame or Loss of Signal defect
has persisted for 2–10 seconds (inclusive).
Loss of MultiFrame* E1 only. Number of Loss of MultiFrame failures
(LOMF). An LOMF is declared when two consecutive
multiframe alignment signals have been received with
an error.
Loss of Signal* Number of times a Loss of Signal failure was detected.
Out of Frame Defects* Occurrence of a particular density of Framing Error
Events.
Path Coding
Violations*
For D4 and E1-noCRC signals, the number of frame
synchronization bit errors.
For ESF and E1-CRC signals, the number of CRC or
frame synchronization bit errors.
Remote Alarm
Indications*
Number of Yellow Alarms (for T1) or Distant Alarms
(for E1).
Severely Errored
Framing Seconds
Occurrence of a second that contains one or more Out
Frame Defects or an Alarm Indication Signal Defect.
Severely Errored
Seconds
Number of seconds for which any of the following
occurred:
ESF signals with one of the following: 320 or more
Path Code Violations, one or more Out of Frame
Defects, an Alarm Indication Signal Defect.
E1-CRC signals with one of the following: 832 or
more Path Code Violations, one or more Out of Frame
Defects.
E1-noCRC signals with one of the following: 2048 or
more Line Coding Violations.
D4 signals with one of the following: One-second
intervals with Framing Error Events, Out of Frame
Defect, 1544 or more Line Coding Violations.
Not incremented during an unavailable second.
Table 6 Network Health Statistics: T1/E1 Signaling, cont’d
Statistic Description
* Statistic is shown
in Network Health
graphs as aver-
age units/second
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