11-4
Cisco ONS 15600 SDH Reference Manual, Release 9.0
78-18400-01
Chapter 11 Alarm Monitoring and Management
11.2.1 Alarm Window
Note
Major and Minor alarms might appear yellow in CTC under certain circumstances. This is not due to a
CTC problem but to a workstation memory and color utilization problem. For example, a workstation
might run out of colors if many color-intensive applications are running. When using Netscape, you can
limit the number of colors used by launching it from the command line with either the -install option or
the -ncols 32 option.
Software Releases 7.0 and later have TL1 port-based alarm numbering that identifies an alarmed virtual
container (VC) by its VC on a port rather than the VC on the optical card. The numbering is present in
the VC alarm TL1 AID. The numbering scheme is described in
11.2.1 Alarm Window
shows the actions you can perform in the Alarms window.
11.2.2 Alarm-Affected Circuits
You can determine which ONS 15600 SDH 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 (
).
Table 11-3
TL1 Port-Based Alarm Numbering Scheme
MON Object
(Optical)
Syntax and Examples
STM1/4/16/64 VC Syntax: VC-<Slot>-<Pim>-<Ppm>-<Port>-<STS>
Ranges: VC-{1-4,11-14}-{1-4}-{1-4}-{1-
n
1
}-{1-
n
2
}
Example: VC-1-1-1-1-6
1.
Port number range varies by card type with a maximum of four.
2.
Maximum VC number depends on the rate and size of the VC.
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 SDH 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.
