NE Alarm Attribute

In this user interface, you can set the alarm attributes for a specified NE, including alarm reversion mode, alarm correlative suppression, alarm occurring hold-off time, and alarm ending hold-off time.

Navigation Path

In the NE Explorer, select Alarm > NE Alarm Attribute from the Function Tree.

NOTE:

Alarm reversion set on the port applies only when the reversion mode set on the NE is set to Enable (Auto Restore) or Enable (Manually Restore).

Button Description

Button	Description
	If a column is not set filter criteria, this filter icon appears after you rest the pointer on a column header. If a column has been set filter criteria, the filter button is always displayed on the right of the parameter name. Sets filter criteria to filter related values. In the dialog box that is displayed after you click this icon, you can set filter criteria using either of the following two methods: Click the first option button and select a criterion from the drop-down list. Click the second option button, select Contains or Does Not Contain from the drop-down list, and enter keywords in the text box.

Button

Description

If a column is not set filter criteria, this filter icon appears after you rest the pointer on a column header.
If a column has been set filter criteria, the filter button is always displayed on the right of the parameter name.
Sets filter criteria to filter related values. In the dialog box that is displayed after you click this icon, you can set filter criteria using either of the following two methods:
- Click the first option button and select a criterion from the drop-down list.
- Click the second option button, select Contains or Does Not Contain from the drop-down list, and enter keywords in the text box.

Parameters

Parameter	Value	Description
NE	For example: NE350	NE name.
Register Mode	Stop, Wrap	Indicates the processing mode when alarm memory is full. Wrap: When the alarm memory is full, the earliest alarms are deleted so that new ones can be stored. Stop: When the alarm memory is full, new alarms are discarded.
Alarm Reversion	Disable, Enable (Auto Restore), Enable (Manually Restore)	Indicates the alarm reversion mode. Disable: Alarm reporting is not affected at this port regardless of how this option is set. Enable (Auto Restore): The port set to revertive returns to normal automatically when services are accessed or the failure is cleared. At the same time, alarm reporting is restored. Enable (Manually Restore): The port set to revertive does not return to normal automatically when services are accessed or the failure is cleared. Manual reversion is needed.
Correlation Analysis	Disabled, Enabled	Specifies whether to enable the alarm correlation analysis. If enabled, when alarms are generated on an NE, the NE reports the root alarms only and suppresses the alarms caused by the root ones. The NG WDM equipment and the SLM equipment do not support this function.
Delay Reporting	Disabled, Enabled	Specifies whether to enable the alarm delay. If disabled, there is no need to set the following two values.
Delay in Alarm Generation	2 to 6	Indicates the period of time from when an alarm is generated to when the alarm is reported. If detecting the alarm continuously in this period, the U2000 Web LCT verifies that the alarm is generated. This option is set only when the alarm delay is enabled.
Delay in Alarm Clearance	2 to 20	Indicates the period of time from when an alarm clears to when the reporting ends. If detecting no alarm continuously in this period, the U2000 Web LCT verifies that the alarm clears. This option is set only when the alarm delay is enabled.
Alarm Indicator	Enabled, Disabled	Specifies whether to permanently enable the alarm indicator on the NE.
Alarm Threshold for Fade Margin Shortage (dBm)	10.0 to 35.0 Default: 14.0	When the fade margin value is less than the alarm threshold,the alarm will be reported. Fade is a transmission circumstance relative to free space. Fade margin refers to the level margin that is reserved to ensure that the system can work properly when the bit error rate threshold is not exceeded.
Alarm Sound	Enabled, Disabled	Specifies whether to permanently enable the alarm sound on the NE.