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Cisco ONS 15600 Reference Manual, R7.2
Chapter 11 Alarm Monitoring and Management
11.2.1 Alarm Window
Software Releases 7.0 and later have TL1 port-based alarm numbering that identifies an alarmed
synchronous transport signal (STS) by its STS on a port rather than the STS on the optical card. The
numbering is present in the STS alarm TL1 AID. The numbering scheme is described in Table 11-3.
11.2.1 Alarm Window
Table 11-4 shows the actions you can perform in the Alarms window.
11.2.2 Alarm-Affected Circuits
You can determine which ONS 15600 circuits are affected by a specific alarm by positioning the cursor
over the alarm in the Alarm window and right-clicking. A shortcut menu appears (Figure 11-2).
Table 11-3 TL1 Port-Based Alarm Numbering Scheme
MON Object
(Optical) Syntax and Examples
OC3/12/48/192
STS
Syntax: STS-<Slot>-<Pim>-<Ppm>-<Port>-<STS>
Ranges: STS-{1-4,11-14}-{1-4}-{1-4}-{1-n
1
}-{1-n
2
}
Example: STS-1-1-1-1-6
1. Port number range varies by card type with a maximum of four.
2. Maximum STS number depends on the rate and size of the STS.
Table 11-4 Alarm Window
Button Action
Filter Allows you to change the display on the Alarms window to show only
alarms that meet a certain severity level, occur in a specified time frame,
and/or reflect specific conditions. For example, you can set the filter so that
only Critical alarms appear on the window.
If you enable the Filter feature by clicking the Filter icon button in one CTC
view, such as node view, it is enabled in the others as well (card view and
network view).
Synchronize Updates the alarm display. Although CTC displays alarms in real time, the
Synchronize button verifies that CTC and the ONS 15600 agree on current
alarms. This is particularly useful during provisioning or troubleshooting.
Delete Cleared Alarms Deletes alarms that have been cleared.
AutoDelete Cleared
Alarms
If checked, CTC automatically deletes cleared alarms.