Cisco Prime Performance Manager User Guide, 1.1
Configuring Thresholds

Table Of Contents

Configuring Thresholds

Creating Thresholds in Prime Performance Manager

Managing Thresholds

Editing Thresholds

Enabling and Disabling Thresholds

Deleting Thresholds

Viewing Thresholds Parameters and Reports from the Alarms Window

Viewing Threshold Events


Configuring Thresholds


The following topics provide information about configuring thresholds in Cisco Prime Performance Manager:

Creating Thresholds in Prime Performance Manager

Managing Thresholds

Creating Thresholds in Prime Performance Manager

Prime Performance Manager allows you to create thresholds to generate alarms when a given report key performance indicator (KPI) rises or falls to a specified point. Threshold-eligible report KPIs are identified by Add Threshold tools in the report KPI column header. Figure 10-1 shows an example.

Figure 10-1 Add Threshold Tools

To create a threshold, you provide the KPI onset and abate points. Onset is the rising or falling KPI value that, when reached, generates an alarm. Abate is he rising or falling KPI value that, when reached, clears the alarm. Additionally, you can specify the type of alarm you want raised, the days and times you want the threshold to run, and the number of required threshold-crossing occurrences before the alarm is raised or cleared.

As you prepare to create thresholds in Prime Performance Manager, keep the following in mind:

Prime Performance Manager validates your threshold entries based on the KPI type, either rising or falling. For a rising threshold, for example interface availability up percentage, the higher alarm threshold value must be greater than the lower alarm. For a falling threshold, for example, interface availability up percentage, the higher alarm threshold must be lower than the one entered for the lower alarm.

To avoid flooding the system with alarms, testing thresholds on a small group of devices before rolling them out to the full network is recommended.

To avoid alarm flapping, set the abate value at a reasonable distance from the onset value. The distance depends on the expected KPI fluctuation. KPIs with larger fluctuations should have a wider onset-to-abate gap than KPIs with smaller fluctuations.

Prime Performance Manager displays Add Threshold tools for any threshold-capable KPI, and excludes report data that cannot have thresholds created, such as name and description.

To create a Prime Performance Manager threshold.


Step 1 Log into Prime Performance Manager GUI as an administrator (Level 5) user.

Step 2 In the Reports navigation area, display the report containing the KPI for which you want to create a threshold.

Step 3 After the report is displayed, click the Add Threshold tool in the KPI column header.

The Add Threshold dialog box appears (Figure 10-2).

Figure 10-2 Add Threshold Dialog Box

Step 4 Enter the threshold parameters:

Name—Enter a unique name for the threshold.

KPI Name—Is automatically generated from the report attribute name. It cannot be edited.

KPI Report—Is automatically generated from the report name. It cannot be edited.

KPI Type—Indicates the KPI type, either rising or falling. It cannot be edited. For a rising threshold, the critical alarm threshold must be higher than the major alarm threshold, and the major alarm threshold must be higher than the minor alarm. For falling KPI thresholds, the critical alarm entry must be lower than the major alarm, and the major alarm must be lower than the minor alarm.

Interval—Choose the time interval. The time interval is the frequency at which Prime Performance Manager will check the data point value identified by the threshold. Threshold intervals include:

5 Minute

15 Minute (default)

Hourly

Daily

Weekly

Monthly


Note Verify that the report has these intervals enabled. Be default, Prime Performance Manager 15-minute, hourly, daily, weekly, and monthly intervals are enabled. To run a threshold every 5 minutes, you must enable 5-minute report interval. For information about configuring reports, see Chapter 7 "Working With Reports and Dashboards."


Enabled—The threshold is enabled by default. If you want to create the threshold but do not want to enable it, uncheck this box. You can enable the threshold later on the Threshold Editor window. For example, you might want to create all the thresholds first, review them in the Thresholds Editor window, then enable them at one time. For information about Thresholds Editor, see Managing Thresholds.

Scope—Set the threshold scope. The scope indicates the devices for which you want the threshold reported. The "default" value means report the threshold for any reportable device. You can set the scope for a subset of devices, for example, you can choose Cisco7606s to report the threshold only for Cisco 7606 routers, and so on. The device groups that appear come from the Polling Groups tab. Device groups are based on the device types that are found during device discovery.

Description—Add any notes, as needed, to help describe the threshold. The field accepts any alphanumeric text.

Days—Enter the days for which you want the threshold applied. For example, you might only want to check some thresholds once a week, in which case, you would pick the day of the week when you want the threshold to apply.

Hours—Enter the time period (hours and minutes) for which you want the threshold applied. If you enter the same value, the threshold is always applied.

Threshold Values—Enter the threshold onset, abate, and number of occurrence values for the alarms you want raised: minor, major, critical:

Onset—Enter the onset threshold value(s) in the alarm box(es) that you want raised. You can set values for any or all alarm types. However, alarm entries must match the KPI type. For a rising KPI, the critical alarm threshold entry must be higher than the major alarm, and the major alarm threshold must be higher than the minor alarm. For a falling KPI type, the critical alarm threshold must be lower than the major alarm, and the major alarm must be lower than the minor alarm.

Abate—Enter the threshold value in the box of the alarm(s) when you want the alarm cleared. For a rising KPI type, the abate value must always be lower than the onset value. For a falling KPI type, the abate value must be lower than the onset.

Onset Occurrences—Enter the number of onset threshold crossings that must occur before the alarm is raised.

Abate Occurrences—Enter the number of abate occurrences that must occur before the alarm is cleared.

Step 5 Click OK.

The TCA is added to the gateway thresholds. To view and edit the thresholds, click Administrative > Threshold Editor. For more information, see Chapter 10 "Configuring Thresholds."


Managing Thresholds

Prime Performance Manager thresholds can be viewed, edited, disabled, enabled, and deleted from the Administrative > Thresholds Editor tab, shown in Figure 10-3. The editor displays thresholds added from the Prime Performance Manager reports GUI (see To create a Prime Performance Manager threshold.), and ones created using an XML editor and added directly to the gateway.

Figure 10-3 Edit Thresholds Tab

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Threshold values

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Threshold actions: Enable/Disable, Delete, Edit


Related Topics

Editing Thresholds

Enabling and Disabling Thresholds

Deleting Thresholds

Viewing Thresholds Parameters and Reports from the Alarms Window

Viewing Threshold Events

Editing Thresholds

To edit a threshold.


Step 1 Log into Prime Performance Manager GUI as an administrator (Level 5) user.

Step 2 In the navigation area, click Administrative.

Step 3 In the Administrative window, click Threshold Editor.

Step 4 In the Actions column of the threshold you want to edit, click Edit This [Rising/Falling] Threshold.

Step 5 In the Edit Thresholds dialog box, edit any of the following values. For detailed descriptions, see Creating Thresholds in Prime Performance Manager.

Name—The threshold name.

KPI Name—Cannot be edited.

KPI Report—Cannot be edited.

KPI Type—Cannot be edited.

Interval—The threshold time interval:

Scope—The threshold scope.

Enabled—Enables the threshold.

Description—Threshold text description.

Days—The days when the threshold is applied.

Hours—The time period (hours and minutes) when the threshold is applied.

Threshold Values—The threshold onset, abate, and number of occurrence values for the alarms that are raised.

Step 6 When finished, click OK.

The edits are displayed in the Thresholds Editor.


Enabling and Disabling Thresholds

To enable or disable a threshold:


Step 1 Log into Prime Performance Manager GUI as an administrator (Level 5) user.

Step 2 In the navigation area, click Administrative.

Step 3 In the Administrative window, click Threshold Editor.

Step 4 In the Actions column of the threshold you want to enable or disable, check (enable) or uncheck (disable) the Enable This Threshold check box.

Prime Performance Manager will update the threshold information.


Note You can also enable and disable thresholds using the "Editing Thresholds" procedure.



Deleting Thresholds

To delete a threshold:


Step 1 Log into Prime Performance Manager GUI as an administrator (Level 5) user.

Step 2 In the navigation area, click Administrative.

Step 3 In the Administrative window, click Threshold Editor.

Step 4 In the Actions column of the threshold you want to delete, click the Delete This Threshold tool.

Step 5 On the confirmation, click OK.

Prime Performance Manager will remove the threshold from the table.


Viewing Thresholds Parameters and Reports from the Alarms Window

From the Prime Performance Manager Alarms window can perform the following perform the following actions from a threshold crossing alarm:

View threshold parameters (all users).

Edit threshold parameters (administrator users only).

View a report for the threshold crossing (all users).

When threshold crossing alarms occur, you can view the threshold parameters from the Alarms window:


Step 1 Log into the Prime Performance Manager GUI.

Step 2 Click Active Alarms.

Step 3 Select a Threshold Crossing alarm.

Step 4 In the Alarms window toolbar, click Help for Event.

Figure 10-4 Displaying Threshold Parameters from the Alarms Window

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Help for Event tool

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Report for Event tool


Step 5 The View Thresholds dialog box or the Edit Threshold dialog box (administrator users) displays the following threshold values. For detailed descriptions, see Creating Thresholds in Prime Performance Manager.

Name—The threshold name.

KPI Name—The key performance indicator name.

KPI Type—The KPI type (not editable).

KPI Report—The KPI report.

Interval—The threshold time interval (not editable).

Scope—The threshold scope.

Enabled—Indicates whether the threshold is enabled (checked) or disabled (not checked).

Description—Threshold text description.

Days—The days when the threshold is applied.

Hours—The time period (hours and minutes) when the threshold is applied.

Threshold Values—The threshold onset, abate, and number of occurrence values for the alarms that are raised.

Step 6 When finished, click OK.

Step 7 To view a report for the threshold crossing, in the Alarms window toolbar, click Report for Event.

The threshold crossing report window appears.

Step 8 When finished, click OK.


Viewing Threshold Events

To view threshold events, in the navigation area, click the Event History. The types of threshold events that appear include:

All threshold crossing events, for example:

Threshold : 'rising1' - 'Node=csr-c-2941d,ifDescr=ATM0/IMA23' crossed threshold for 
'Interface Availability 15 Minute/Down Percentage' time period : '2011-12-06 
10:30:00.0' - value '50.0' threshold '5.0'.

and

Threshold : 'rising1' - 'Node=csr-c-2941d,ifDescr=ATM0/IMA23' is below threshold for 
'Interface Availability 15 Minute/Down Percentage' time period : '2011-12-06 
10:15:00.0' 

All threshold user creation or edition activities, for example:

Gateway: node123- Threshold rising1 - Threshold2811 - 15 Minute was overwritten by 
user123.