Cisco 10000 Series Troubleshooting Guide

5-3
Cisco 10000 Series Router Troubleshooting Guide
OL-0439-02
Chapter 5 Cisco 10000 Series Router Alarms and Error Messages
OC-12 POS Line Card Alarms and Error Messages
OC-12 POS Line Card Bit Error Rate Alarms
Table 5-2 describes a separate set of alarm messages raised when the bit error rate (BER) thresholds
exceed specified limits. The BER monitors help identify signal degrading BER levels.
PLOP
Loss of Pointer – Path
Minor
Alarm messages appear in the CLI
and logs.
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.
PRDI
Remote Defect
Indication – Path
Minor
Alarm messages appear in the CLI
and logs.
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.
Table 5-1 SONET Alarms (continued)
Alarm Type and Severity Alarm Symptoms Recommendation
Ta b l e 5 - 2 B E R A l a r m s
Alarm Type and Severity Alarm Symptoms Recommendation
TCA_B1
Threshold crossing alarm – B1
Minor
For alarm types:
• TCA_B1
• TCA_B2
• TCA_B3
Alarm messages appear in the
CLI and logs.
In all cases, test the quality of
the cables and connections.
TCA_B2
Threshold crossing alarm – B2
Minor
TCA_B3
Threshold crossing alarm – B3
Minor

Cisco 10000 Series Specifications

General

Brand	Cisco
Model	10000 Series
Category	Network Router
Language	English