Topology Widget

The Topology widget can visualize device physical connections and logical relationships derived from various protocols. Perform the steps below to configure settings for the Topology widget.

Data

The Data tab enables you to select the resources for which you want to view the topology.

Perform the following steps to set the widget settings for Data tab.

  1. For datasource and resource type settings, please refer to section Select Widget Resources in section Create.
  2. Enable Use Lat/Long Metadata to allow user to choose a metadata namespace. This option enables using metadata in SevOne NMS to automatically place devices on the map at the coordinates found in the metadata value. Once the user specifies a Namespace and Attribute, it checks the devices.
    1. if all the selected devices have latitude / longitude information set, it will by default display the devices in Map mode and will allow user to toggle to Canvas mode.
    2. if some of the selected devices have latitude / longitude information set, it will by default display the devices in Canvas mode but will allow user to toggle to Map mode
    3. if none of the selected devices have latitude / longitude information set, it will by default display in Canvas mode and you will not have the capability to toggle between Map and Canvas modes.
      Note: In Canvas mode, Options drop-down will be available to choose the LAYOUT if Charts > Visualization > Topology visualization > Show topology options check box is selected.
  3. For Number of Hops, enter the number of hops to graph.
  4. Click Run to execute the Topology configuration and generate a report.
    Note: Run button is only available when one or more fields are changed in the Data tab.
    Note: Replace Untitled Report with a report name. For example, Topology Report.
    Replace Untitled Section and provide a name to it. For example, Topology.

    Example:
    Lat/Long Metadata disabled,

    Topology Data

    Lat/Long Metadata enabled,

    Topology Data Lat / Long Enabled
    Important: Example: Customize Layout

    After choosing Focal Device and Number of Hops, click Run.
    Before Custom Topology Layout

    Note: Cog Wheel icon icon is only available if Charts > Visualization > Topology visualization > Show topology options check box is selected.
    Click the icon to choose the LAYOUT and TAGS.
    Choose LAYOUTs from the list below:
    • Organic
    • Standard (default)
    • Structural
    • Lens
    • Sequential
    • Tweak

    Choose TAGS from the list below:
    • All Logical Links
    • ARP Cache
    • All Session Links
    • EIGRP
    • CDP
    • OSPF
    Note: ICONS
    Compass icon - allows you to navigate the topology in up, down, left, and right directions.
    Hand icon - for panning the canvas around. And, Left arrow allows you to move the nodes around.
    Zoom icon - allows you to zoom in and out of the topology.
    Recenter Topology icon - allows you to recenter the topology visualization over the focal device.


    Topology has two mouse modes - hand mode Hand mode and pointer mode Pointer mode. To toggle between mouse modes, click on the icon.

    To customize the layout, you must be in Data tab.

    Click on Hand mode to change it to images/Left Arrow. Move the nodes around to customize the layout.


    After Custom Topology Layout
    Important: Predefined layouts are available from Charts, Topology visualization, under TOPOLOGY VISUALIZATION > Layout drop-down.

Filters

The Filters tab enables you to apply filters to display results.

Topology Filters

Perform the following steps to set the widget settings for Filters tab.

  1. Click the Attribute drop-down to filter output by Device Group or Device Type or Link Type.
  2. Click the Operator drop-down to choose the relational operator. For example, Equals.
  3. For attribute Device Group, enter the value in Value field.
  4. For attribute Link Type, click Link Types drop-down to select one or more link types. For example, Logical, Session, Physical.
  5. Click Add to add the new filter. The filters you add appear under the Add/Remove buttons.
  6. To remove any filter(s) from the list, select the check box for filter(s) you would like to remove and click Remove.

ALERT SEVERITY FILTERING - allows you to select the severities you want to display.

ALERT POLICY FILTERING - when enabled, allows you to select the policies. Only Alerts from the selected policies are shown in the Topology. Also, the selected policies can be shown / hidden from the Options panel on the Topology interface.

Linking

The Linking tab enables you to select a data element and link it to a related report or report template. Perform the following steps to add, delete, and edit links.

Topology Filters

Perform the following steps to set the widget settings for Linking tab.

  1. Include report links allows report consumers to click on a data element such as, device name, and link it to the related report. Enable to include the report link that you configure. If you want to prevent the report link from being included, disable it. Continue with the steps below to configure report link(s).
  2. By default, Report Link <#> is enabled.
    Note: If you wish to exclude the report link, disable Report Link <#>.
  3. Use the Clicking on drop-down to select a data item that you want to link with the report or report template. When you select a data item for a report link, that data item is no longer listed as an option for other report links as it has already been used. You can apply multiple reports/report templates to the selected data item. For example, Device or Object.
  4. Click the Links to report drop-down and select one or more reports or report templates to display when you click on the data item that you specified in the previous step.
  5. To remove the report link, click Trash can.
  6. To create additional report link(s), click Add report link button.

Charts

The Charts tab enables you to define how you want to display the report data.

Visualizations

The charts provide Topology visualization only.

Topology Visualization Charts

Topology

The Topology visualization displays the selected focal device in the network based on the layout selected. Perform the following steps to set the widget settings for the Topology visualization.

  1. Select the Topology visualization by clicking Topology icon .
  2. TOPOLOGY VISUALIZATION - Enables you to select the layout to display the network topology.
    1. Click the Layout drop-down and select one of the following layout options to display the network topology.
      • Standard

        Topology Visualization - Standard layout

      • Organic
        Topology Visualization - Organic layout

      • Structural
        Topology Visualization - Structural layout

      • Lens
        Topology Visualization - Lens layout

      • Sequential
        Topology Visualization - Sequential layout

      • Tweak
        Topology Visualization - Tweak layout
    2. Select the Show topology options check box to display the Cog Wheel icon icon and choose the LAYOUT and TAGS available in the respective lists.
    3. Select the Show filter selector check box to display the output based on the filter added in the Filters tab.
      Topology Visualization - Standard layout
    4. Select the Enable Legend check box to display the legend at the bottom of the topology report.
    5. Select the Enable Mapping Controls to display the mapping controls such as the hand / pointer mode, zoom in / out, etc.
  3. ALERT OPTIONS
    1. Enable Color nodes by Alert Status to color the nodes based on SevOne Alert status.
    2. Select the Use halo check box to add halo to the nodes.
    3. Select the Display Alert Count in Nodes check box to display the alert count available for each node.
    4. Enable Color links by Alert Status to color the links based on SevOne Alert status
  4. CANVAS STYLE
    1. Enable Show link labels to display the labels on the links.
  5. TILE SERVER DETAILS
    1. In field Tile Server URL, if you want a map-specific tile server, enter your tile server URL. The client browser must have an internet connection for this to work. Please note the tile server must work with Leaflet. For additional details, please refer to https://leafletjs.com/reference-1.9.3.html#tilelayer.

Table

The Table visualization displays the data as a table. Perform the following steps to set the widget settings for the Table visualization.

  1. Select the Table visualization by clicking Table visualization.
  2. TABLE TITLE
    1. Enable Show title to enter the title name in the text field provided and display it in report. Else, disable it.
    2. Enable Show subtitle to enter the sub-title name in the text field provided and display it in the report. Else, disable it.
  3. TABLE OPTIONS
    1. Select Allow column reordering check box to allow the columns that display in the report to be reordered.
    2. Select Allow showing/hiding columns check box to allow columns in the report to be hidden and unhidden.
    3. Select Wrap cell content check box to wrap long text in a data row so that all text displays. Disable it to display as much text as fits into the cell with ellipses to indicate there is more text.
    4. By enabling Show search bar, the search capability is available to perform a search in the table. Disable it if you do not want the search capability. If Show search bar is enabled, you may click Funnel icon to allow Search by column.
  4. COLUMN SELECTION
    1. Select the check boxes to display the selected fields as data columns in the table. The names in the second column are the names for the columns that appear in the report. You may modify the names in the second column to your choice.
      Topology Visualization - Table