Alarms
The Alarms tab lists current alarms for the Cisco ONS network, node, or card and updates them in real time. The Alarms tab shows alarms in compliance with Telcordia GR-253. This means that if a network problem causes two alarms, such as loss of frame (LOF) and loss of signal (LOS), CTC shows only the LOS alarm in this window because it supersedes and replaces the LOF.
Note
When an entity is put in the OOS,MT administrative state, the ONS 15454 clears all standing alarms on that entity. Alarms and events are raised but not reported; you can retrieve alarms and events from the Conditions tab. You can change this behavior for the LPBKFACILITY and LPBKTERMINAL alarms. Setting the NODE.general.ReportLoopbackConditionsOnPortsInOOS-MT to TRUE on the NE Defaults tab causes these alarms to be reported on the Alarms tab.
Tip: In network view, double-click an alarm to display the node or card where the alarm occurred. In node view, double-click an alarm to display the card where the alarm occurred.
 
Item
Description
Num
An incrementing count of alarm messages. (The column is hidden by default; right-click any column and choose Show Column.)
Ref
The reference number assigned to the alarm. (The column is hidden by default; right-click any column and choose Show Column.)
New
Indicates a new alarm; to change this status, click either the Synchronize button or the Delete Cleared Alarms button.
Date
Date and time of the alarm.
Node
(Network view only) Shows the node where the alarm occurred.
Object
TL1 access identifier (AID) for the alarmed object. For an STSMON or VT-MON alarms, the object.
Eqpt Type
If the alarm is raised on a card, the card type.
Slot
If the alarm is raised on a card, the slot where the alarm occurred.
Port
If the alarm is raised on a card, the port where the alarm is raised. For STSTerm and VTTerm, the port refers to the upstream card it is partnered with.
Wavelength
Wavelength is a provisionable parameter on the port entity. If a wavelength is provisioned that does not match PPM capability, a PROV-MISMATCH alarm occurs. Wavelength is displayed for DWDM, MRC-N (ONS 15454 only), and ASAP (ONS 15600 only) cards.
Path Width
Number of synchronous transport signals (STSs) contained in the alarmed path. The column reports the width as a 1, 3, 6, 12, 48, etc. as appropriate, understood to be “STS-n.”
Sev
Alarm severity level: CR (Critical, displayed in red), MJ (Major, displayed in orange), MN (Minor, displayed in yellow), NA (Not Alarmed, displayed in pink), or NR (Not Reported, displayed in blue).
ST
Alarm status: R (raised), C (cleared), or T (transient). A transient (T) event is one that is automatically raised and cleared in CTC during system changes such as user login, logout, loss of connection to node view, etc. Transient events do not require user action.
SA
When checked, indicates a service-affecting alarm.
Cond
Error message/alarm name. These names are described in the “Alarm Troubleshooting” topic, which you can view by choosing Contents and Index from the CTC Help menu.
Description
Description of the alarm.
Direction
Displays the direction (receive or transmit) of the alarm and is relative to the entity (node, card, slot, or port) identified by the AID (entity identifier).
Location
Displays the location (far, near, or N/A) of the alarm and refers to the entity (node, card, slot, or port) identified by the AID (entity identifier). Near-end refers to alarms occurring at the identified entity, and far-end refers to alarms occurring at a distant entity connected to the identified entity.
Shelf
(Network view or multishelf view [multishelf mode] only) When checked, indicates a multishelf alarm.
Synchronize
Updates the alarm table display.
Filter
Displays the Alarm Filter dialog box where you can set the filter parameters for the alarms that appear on the Alarms tab.
Delete Cleared Alarms
Deletes all cleared alarms from the alarm window.
AutoDelete Cleared Alarms
If checked, deletes cleared alarms automatically.
Turns the filter on or off. CTC retains that last filter activation setting. For example, if you turn the filter on and then log out, CTC keeps the filter active the next time you log in.
Help
Displays context-sensitive help.
The table below lists the colors that appear on the Alarms tab to identify alarm and condition severities.
 
Color
Description
Red
Raised Critical (CR) alarm
Orange
Raised Major (MJ) alarm
Yellow
Raised Minor (MN) alarm
Magenta
Raised Not Alarmed (NA) condition
Blue
Raised Not Reported (NR) condition
White
Cleared (C) alarm or condition

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