Configuring Groups : What is a group?
  
What is a group?
A group is a logical collection of devices that can be used to do the following:
Perform targeted collection for a subset of devices
Configure polling
Configure alerts
Focus on certain devices in the Device Manager
Focus on certain devices in some NetIM reports that support groups
View group-based connectivity
A group can be composed of both individual devices and subgroups.
NetIM supports two types of user-defined groups:
Devices—A group of devices. A device can belong to multiple groups.
Sites—A group of devices that belong to a site. A site generally contains devices that are co-located.