Starting version 8.9.03, BMC Network Automation is renamed to TrueSight Network Automation. This space contains information about BMC Network Automation 8.9.02 and previous versions. For TrueSight Network Automation 8.9.03 and later releases, see the TrueSight Network Automation documentation.

Understanding the impact of changing the Auto Group option

When an auto-group parameter is changed in a dynamic field, BMC Network Automation takes these actions:

  • When the auto-grouping parameter is a text-type parameter, BMC Network Automation takes the user's input and strips off leading and trailing white space and collapses other white space down to a single blank.
  • For an existing device, the BMC Network Automation system removes the device from the auto-group corresponding to the parameter's old value. If the auto-group becomes empty and the group is not referenced by any other system components, BMC Network Automation deletes the auto-group and logs an event to the Event Log. Otherwise, BMC Network Automation logs an event and displays a prompt to remind the user to manually dereference and delete the auto-group, as appropriate.
  • If the new value is empty, then BMC Network Automation does not assign the device to any auto-group for this parameter.
  • When the new value is not blank, BMC Network Automation looks for an existing auto-group corresponding to the parameter's new value. The lookup is case-insensitive. If an auto-group exists, BMC Network Automation adds the device to this auto-group.
  • If the value has no corresponding auto-group yet, BMC Network Automation creates a new auto-group. Its name is the parameter's label and the parameter's value (that is, Name.Value). BMC Network Automation adds the device to this new auto-group.
  • BMC Network Automation makes entries to the Event Log when creating and deleting auto-groups and when adding and removing devices to/from auto-groups.
  • If an auto grouped CAP query is changed, the old auto groups are deleted. Fields are assigned values and auto groups are created for each device during the next snapshot or during a Refresh Device Status span action.
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