The system has detected a loss-of-frame (LOF) condition from the fiber. LOF is declared when an out-of-frame (OOF) defect persists for 2.5 (±0.5) seconds. This alarm was previously called inc. (from fiber) DS3 OOF.
|
Alarm Data |
Value/Meaning |
|---|---|
|
Severity Levels |
Critical (CR), Major (MJ), Minor (MN), Not Alarmed (NA), Not Reported (NR) Default: Not Alarmed (NA) |
|
ASAP Type |
DS3 Port |
|
AID Type |
DS3 Port |
|
Date |
Month/day/year that the condition was detected |
|
Time |
Hour:minute:second that the condition was detected |
|
Probable Cause |
LOF-EGR (Loss of Frame in Egress direction |
|
Effect on Service |
NSA |
|
Alarm Entity Type |
T3 |
|
Description |
inc. (from fiber) DS3 LOF |
|
Likely Cause |
The local DS3 port is incorrectly provisioned, or a problem/failure occurred at either the far-end SONET network element or the interfacing customer equipment connected to the far-end SONET network element. |
|
Visible Indication |
Lighted CR, MJ, or MN LED on the SYSCTL faceplate (when the severity level is provisioned to Critical, Major, or Minor, respectively) |
|
Action |
Proceed to Procedure 5-54: Clear "inc. (from fiber) DSn" alarms. |
| November 2011 | Copyright © 2011 Alcatel-Lucent. All rights reserved. |