Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

Network Node Manager i Software10.30

Use > Monitor Devices for Problems > Monitor with Graphs > Use Stacked Area Graphs

Use Stacked Area Graphs

[This is the context-sensitive help for the Stacked Area Graph Help option]

Stacked Area graphs are graphs that display data by shading the area between sets of linear data points. This graph format is only available if you have the license for an Network Node Manager i Software Smart Plug-in that provides them. The Network Node Manager i Software Smart Plug-in might use different terminology than Stacked Area to describe the graph.

The Stacked Area Graph enables you to view real-time SNMP data for selected objects.

Each stacked area on the graph represents a numeric value you want to monitor. If more stacked areas than the default number to be displayed on the graph are available, you can change the set of stacked areas you want to view from the default selection.

If NNMi displays a gap in a stacked area on the graph, this means data was not available during the points in time indicated by the gap. Any stacked area that discontinues in the graph indicates the stacked area no longer has available data.

From a graph, you perform the following tasks:

Change the Stacked Areas Displayed on a Graph
Emphasize a Stacked Area Displayed on a Graph
Hide Data Displayed on a Stacked Area Graph
Display Messages on a Stacked Area Graph
Show and Hide the Stacked Area Graph Legend

Change the Stacked Areas Displayed on a Graph

When you display a Stacked Area graph, NNMi creates a stacked area for each numeric value defined for the graph.

By default, NNMi displays up to 20 stacked areas of data at one time. If more than 20 instances of data are available, NNMi uses the notification area to inform you that the number of stacked areas to be displayed exceeds your default number. See Display Messages on a Stacked Area Graph for more information about the notification area.

The NNMi administrator can change the default number of stacked areas to be initially displayed.

See the legend provided with each graph for information about the data represented by each stacked area color on the graph.

NNMi enables you to change which stacked areas are displayed in a graph.

You can also hide stacked areas displayed on a graph. When a stacked area is hidden, NNMi continues to request new data for that instance. SeeHide Data Displayed on a Stacked Area Graph for more information.

To add a stacked area to the graph:

Select File → Select Areas...

NNMi displays the Select Areas dialog box.
In the Select Areas dialog box, do one of the following:

To display a stacked area for one or more instances of data that appear in the Select Areas dialog box, select the check box in the row representing each instance of data that has a stacked area you want to display.
To display stacked areas for all instances of data that appear in the Select Areas dialog box, select the check box () that appears above the check box column.

Click OK.

The graph displays the new set of stacked areas specified.

To remove a stacked area on the graph:

If a stacked area is removed from the graph, NNMi no longer tracks the SNMP data for that instance.

Select File → Select Areas...
NNMi displays the Select Areas dialog box.
In the Select Areas dialog box, do one of the following:

To remove a stacked area for one or more instances of data, deselect the check box () in the row representing each instance of data that has an area you want to remove.
To clear all stacked areas for all instances of data that appear in the Select Areas dialog box, deselect the check box () that appears above the check box column. If only some instances of data are selected, click the check box above the check box column twice. The first click selects all instances of data and the second click clears the check box for all data instances.

Click OK.
The graph displays the new set of stacked areas specified.

Emphasize a Stacked Area Displayed on a Graph

NNMi enables you to emphasize a stacked area displayed in a graph.

To emphasize a stacked area on the Flash-based graph:

Navigate to the Graph Legend. If the Legend is not displayed, select View → Show Legend.
Mouse over the legend entry representing the stacked area that you want to emphasize.
The selected legend entry appears bold and all other stacked areas fade.

To emphasize a line on the Non-Flash based graph:

Mouse over the legend entry representing the line that you want to emphasize.
The selected entry appears bold and all the other lines fade.

Hide Data Displayed on a Stacked Area Graph

NNMi enables you to temporarily hide data displayed in a Stacked Area Graph.

You can also choose to hide a stacked area containing extreme values so that the Y-axis is recalculated to show more detail for the remaining stacked areas.

NNMi continues to request new data for instances with hidden stacked areas. A stacked area that was hidden can be added back to the graph at any time and display the most current information.

To hide a stacked area on the Line Graph:

Navigate to the Graph Legend. If the Legend is not displayed, select View → Legend.
Click the entry in the Legend representing the stacked area that you want to hide.
Click the popup text to hide the line.
The stacked area entry disappears from the map and the Legend link text turns gray.

To display a stacked area that is hidden:

Navigate to the Graph Legend. If the Legend is not displayed, select View → Legend.
Hidden line entries have gray text in the Legend.
Click the entry in the Legend representing the hidden stacked area that you want to display.
Click the popup text display the line.
The stacked area entry appears on the map and the Legend link text turns black.

You can also remove a stacked area from the graph. When you remove data from the graph, NNMi stops requesting new data for that instance. See Change the Stacked Areas Displayed on a Graph for more information.

Display Messages on a Stacked Area Graph

A Stacked Area graph enables you to display the history of messages generated for a particular graph. Messages can be either informational or warning messages that result when NNMi is unable to display a particular stacked area in the graph. For example, an SNMP timeout might prohibit NNMi from displaying updated data.

NNMi also displays a Warning message if it is unable to graph the data for the Maximum Time Range specified. See Determine the Maximum Time Range for a Graph for more information.

You can also control whether NNMi automatically displays the Message History dialog box in a pop-up window each time NNMi receives a new Warning message.

To display the history of messages for Flash-based Stacked Area Graphs:

Select View → Notification History.
NNMi displays the Date, Type (Info or Warning) and Description for all messages that you have not deleted.
Click Delete History to delete the list of messages displayed. Any messages deleted from the Notification History are no longer available for viewing.
Click OK to close the Notification History dialog box.

For Flash-based Stacked Area Graphs, to control whether the Notification History dialog box is automatically displayed in a pop-up window each time NNMi receives a new Warning message:

Select View → Notification History.
Do one of the following:
- Select to clear Show on warning if you do not want NNMi to automatically display Warning messages in a Status pop-up window.
- Select to check Show on warning to display Warning messages in a pop-up window as they occur.

NNMi displays individual messages in a notification area that appears above the graph when a message occurs. To clear a message displayed in the notification area, click the OK button that appears to the right of the message. The message remains available to be displayed when using Notification History.

To display information or warning messages for Non-Flash based Stacked Area Graphs:

Select File → View Messages.
NNMi displays the Date, Type (Info or Warning) and Description for all messages in the Messages dialog box.
Click Clear Selected. Any message deleted from the Messages dialog box are no longer available for viewing.
In the Messages dialog box, select the check box in the row representing the message.
Click Close to close the Messages dialog box.

Show and Hide the Stacked Area Graph Legend

The Graph Legend identifies each stacked area displayed in the graph. The Network Node Manager i Software Smart Plug-in determines the content and format of the Graph Legend.

NNMi enables you to temporarily hide the legend displayed in a graph. For example, if you need more than the default number of stacked areas, you might want to hide the legend to provide more space to display the graph.

To hide the legend on a graph:

Select View → Show Legend.

The check mark no longer appears next to the Show Legend menu option.

The legend no longer appears in the graph.

To redisplay a legend that is hidden:

Select View → Show Legend.

The check mark re-appears next to the Show Legend menu option.

The legend reappears in the graph.

Send Help Center feedback