Datasheet

14-4
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 14 Alarm Monitoring and Management
14.3.1 Viewing Alarms With Each Node’s Time Zone
Note Major and Minor alarms may 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.
In network view, CTC identifies STM and VC alarm objects based upon the object IDs. Table 14-3 lists
the object numbering schemes for the MON (such as HPMon and LPMon) and TERM (such as HPTerm
and LPTerm) objects.
14.3.1 Viewing Alarms With Each Node’s Time Zone
By default, alarms and conditions are displayed with the time stamp of the CTC workstation where you
are viewing them. But you can set the node to report alarms (and conditions) using the time zone where
the node is located by clicking Edit > Preferences, and clicking the Display Events Using Each Node’s
Time Zone check box.
14.3.2 Controlling Alarm Display
You can control the display of the alarms shown on the Alarms window. Table 14-4 shows the actions
you can perform in the Alarms window.
Table 14-3 Release 4.0 and Later Port-Based Alarm Numbering Scheme
STM and VC Alarm Numbering
MON object VC4-<slot>-<port>-<VC_within_port>
For example, VC4-6-1-6
Port=1
TERM object VC4-<slot>-<VC_within_slot>
For example, VC4-6-6
Port=1
Table 14-4 Alarm Display
Button/Check Box/Tool Action
Filter button 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 display on the window.
If you enable the Filter feature by clicking the Filter button in one CTC
view, such as node view, it is enabled in the other views as well (card view
and network view).
Synchronize button Updates the alarm display. Although CTC displays alarms in real time, the
Synchronize button allows you to verify the alarm display. This is
particularly useful during provisioning or troubleshooting.
Delete Cleared Alarms
button
Deletes, from the view, alarms that have been cleared.