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Creating a Child Device Group

Child device groups should only contain devices belonging to their parent group. Creating a child device group of the top-level group “Routing” and using a device group criteria regular expression to filter other devices (e.g., firewalls) will result in an empty device group.

The group membership criteria statements built into each device group, respectively:

$Assurance > 75 and $vendor eq "Cisco" and $type in ["Router","Switch-Router"]

$Assurance > 75 and $vendor eq "Juniper" and $type in ["Router","Switch-Router"]

Note

When you create a child device group for an existing device group, the existing group changes its icon to a folder icon. That folder icon does not change the essential properties of the parent device group–the parent keeps all of its qualifying devices.

To create a new child device group, complete the following:

  1. Click the Settings icon > Setup > Collection and Groups > Groups.
  2. Right-click a device group and select Add > Child from the shortcut menu.
    The Add Device Group dialog appears.
  3. Select either Basic or Extended. By default, Basic is selected. For more information about extended device groups, see Creating Extended Device Groups.
  4. In the Parent ID field, NetMRI automatically sets the ID of the parent group.
  5. Enter a Name for the new child group. The group name is shown in all group-related displays and reports, so the group name should be meaningful without being too long.
  6. Enter a Membership Criteria regular expression. For more information, see Understanding Device Group Membership Criteria.
  7. Click Save & Close or Save & New.

Note

Nested device groups also operate with Issue Analysis. For information, see Issue Analysis in NetMRI and its subsections. Nested device groups inherit their Issue settings from their parent device groups, and may need editing to suppress Issues that are not relevant to them.