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Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
September 2005
Chapter 8 Manage Alarms
NTP-G65 Delete Cleared Alarms from Display
An exclusion rule eliminates all lower-level alarms or conditions that originate from the same cause. For
example, a fiber break might cause a loss of signal (LOS) alarm, an alarm indication signal (AIS)
condition, and a signal fail (SF) condition. If you check the Exclude Same Root Cause check box, only
the LOS alarm will appear. According to Telcordia, exclusion rules apply to a query of “all conditions
from a node.”
Step 4 Return to your originating procedure (NTP).
NTP-G65 Delete Cleared Alarms from Display
Step 1 Complete the “DLP-G46 Log into CTC” task on page 2-25. If you are already logged in, continue with
Step 2.
Step 2 To delete cleared node-level alarms:
a. In node view, click the Alarms tab.
b. Click Delete Cleared Alarms.
• If the Autodelete Cleared Alarms check box is checked, an alarm disappears from the window when
it is cleared.
• If the Autodelete Cleared Alarms check box is not checked, an alarm remains in the window when
it is cleared. The alarm appears white in the window and has a Clear (CL) severity. The alarm can
be removed by clicking the Delete Cleared Alarms button.
This action removes any cleared ONS 15454 alarms from the Alarms tab. The rows of cleared alarms
turn white and have a C in their status (ST) column.
Step 3 To delete cleared card-level alarms:
a. In node view, double-click the card graphic for the card you want to open.
b. Click the Alarms tab and then click Delete Cleared Alarms, referring to the note in
Step 2.
Step 4 To delete cleared network-level alarms:
a. In node view, click View > Go to Network View.
b. Click the Alarms tab and then click Delete Cleared Alarms, referring to the note in
Step 2.
Purpose Use this procedure to delete Cleared (C) status alarms from the Alarms
window or transient messages from the CTC History window.
Tools/Equipment None
Prerequisite Procedures None
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Retrieve or higher
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