Verilink AS2000: The Basics (880-502981-001) Product Manual - Manual (Page 69)

Monitoring and Troubleshooting
Verilink Access System 2000: The Basics 5-3
Interpreting
Alarms
The alarm list displays the following information about alarms
(This information may vary depending on the controller module
and management method used):
• Whenever the system power cycles and any module does a
self-test
• Power supply input is lost
• A default or user-designated threshold is exceeded
• A Yellow Alarm is received from the network (DS1)
• An unframed all-ones or alarm indication signal (AIS) is
received from the network
• There is a Loss of Signal (LOS) or Loss of Frame (LOF)
• A loopback is present
• A module fails
• A module is removed from the shelf
Figure 5-1 Alarm Buffer
Alarm Description The alarm description column lists the text which is:
• printed on the display
• saved to the alarm buffer/database
Alarm
Classification
Verilink classifies alarms into the following severities:
• Critical
• Major
• Minor
• Warning
• Info
• Cleared
Problem Types These classifications are further categorized into the following
problem types:
• LOS
• LOF
• Error
[1,1] DCSU 2911 > o
DCSU 2911 [1,1] AIS Major Alarm port 1 3-09-98 18:38:35
DCSU 2911 [1,1] AIS Threshold Cleared port 1 3-09-98 18:37:17
Press enter to continue
Alarm Description Alarm Classification
Alarm Date and Time Module Type Shelf/Slot
Location
Port