Oc-12 Pos Line Card Bit Error Rate Alarms - Cisco 10000 Series Troubleshooting Manual

Chapter 5 Cisco 10000 Series Router Alarms and Error Messages
Table 5-1
Alarm Type and Severity
PLOP
Loss of Pointer – Path
Minor
PRDI
Remote Defect
Indication – Path
Minor

OC-12 POS Line Card Bit Error Rate Alarms

Table 5-2
exceed specified limits. The BER monitors help identify signal degrading BER levels.
Table 5-2
Alarm Type and Severity
TCA_B1
Threshold crossing alarm – B1
Minor
TCA_B2
Threshold crossing alarm – B2
Minor
TCA_B3
Threshold crossing alarm – B3
Minor
OL-0439-02
SONET Alarms (continued)
Alarm Symptoms
Alarm messages appear in the CLI
and logs.
Alarm messages appear in the CLI
and logs.
describes a separate set of alarm messages raised when the bit error rate (BER) thresholds
BER Alarms
Alarm Symptoms
For alarm types:
•
•
•
Alarm messages appear in the
CLI and logs.
OC-12 POS Line Card Alarms and Error Messages
Recommendation
This is an error in the data. As with
the PAIS, you should monitor for
more of the same messages.
If the alarms are persistent, verify the
interface configurations on both ends
of the trunk.
A PRDI alarm usually indicates a
problem two sites away. If the alarm
is persistent, check the alarm status
of neighboring sites, beginning with
the nearest neighbor.
TCA_B1
TCA_B2
TCA_B3
Cisco 10000 Series Router Troubleshooting Guide
Recommendation
In all cases, test the quality of
the cables and connections.
5-3