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Cisco ONS 15454 Reference Manual, R8.5.x
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14
Alarm Monitoring and Management
This chapter describes Cisco Transport Controller (CTC) alarm management . To troubleshoot specific
alarms, refer to the Cisco ONS 15454 Troubleshooting Guide. Chapter topics include:
• 14.1 Overview, page 14-1
• 14.2 LCD Alarm Counts, page 14-1
• 14.3 Alarm Information, page 14-2
• 14.4 Alarm Severities, page 14-9
• 14.5 Alarm Profiles, page 14-9
• 14.6 Alarm Suppression, page 14-13
• 14.7 External Alarms and Controls, page 14-14

14.1 Overview

CTC detects and reports SONET alarms generated by the Cisco ONS 15454 and the larger SONET
network. You can use CTC to monitor and manage alarms at the card, node, or network level. Alarming
conforms to Telcordia GR-253 standard. Severities conform to Telcordia GR-474, but you can set alarm
severities in customized alarm profiles or suppress CTC alarm reporting. For a detailed description of
the standard Telcordia categories employed by Optical Networking System (ONS) nodes, refer to the
Cisco ONS 15454 Troubleshooting Guide.
Note ONS 15454 alarms can also be monitored and managed t hrough Transaction Language One (TL1) or a
network management system (NMS).

14.2 LCD Alarm Counts

You can view node, slot, or port-level alarm counts and summaries using the buttons on the ONS 15454
LCD panel. The Slot and Port buttons toggle between display types; the Slot button toggles between
node display and slot display, and the Port button toggles between slot and port views. Pressing the
Status button after you choose the display mode changes the display fr om alarm count to alarm summary.