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5.6 Schemes

Schemes are designed to visualize the structural relationships between monitoring objects. Unlike virtual services (see Section 5.5), a scheme does not calculate or display an overall combined status — instead, it shows the individual status of each monitoring object directly. Monitoring objects are represented as geometric shapes on a canvas, connected by lines that reflect the relationships between them. Status-processing functions such as Splitter, MUX, and Changeover are not available in schemes.

Tip

Use schemes when you need a clear topology diagram of your monitoring infrastructure without the overhead of combined status calculations. If aggregate status indicators are required, use virtual services instead (Section 5.5).

To open the schemes screen, go to the Configuration screen and select Schemes in the Monitoring objects & virtual services menu. An example of the schemes screen is shown below.

Figure 164. Schemes screen Figure 164. Schemes screen

The schemes screen consists of three panels:

  • List of schemes (left) — a list of all created schemes.
  • Preview — a visual preview of the selected scheme.
  • Additional Info — a text description of the scheme's configuration.

To create a new scheme, click the New scheme button. To edit an existing scheme, select it from the list. Both operations open the scheme editor.

Scheme Editor

Figure 165. Scheme editor Figure 165. Scheme editor

The scheme editor works similarly to the virtual services editor (see Section 5.5.3), with the following differences:

  • The Splitter, MUX, Changeover, and Divider elements are not available.
  • A Line graphic element has been added for connecting objects.
  • Lines have their own local context menu.

The Line Element

Line element icon The Line element connects objects in the scheme with lines that can include bend points. When a line is selected, handles for copying, deleting, and rotating the line around its starting point become visible (Figure 166).

To access the line's local menu, right-click on any line (Figure 167).

Figure 166. Example of a line Figure 166. Example of a line

Figure 167. Local menu of a connecting line Figure 167. Local menu of a connecting line

The options available in the line's local menu are described in Table 31.

Table 31. Line local menu options

Option Description
Add Point Adds a bend point at the selected location on the line, allowing the line to curve. To remove a point, right-click on it.
Change type line Selects the line type (see Table 32).
Change color line Sets the line color.
Change markers line Selects the arrow style at the end of the line.
Change style Defines the line style using a JSON format descriptor.
Remove edge Deletes the line.

Three line types are available, as shown in Table 32. The type is selected from the line's local menu.

Table 32. Available line types

Type symbol Example

Visualizing a Scheme

Schemes are particularly useful for getting a quick overview of the layout of monitoring objects in your infrastructure. To inspect a specific object in context, visualize the scheme, hover the cursor over the desired object, and click the View in layout button that appears.

To open the visualization, click visualize scheme button in the scheme editor. An example of a visualized scheme is shown below.

Figure 168. Visualization of a scheme Figure 168. Visualization of a scheme