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A combined total availability metric for all nodes is computed and presented in a summary section, and similar metrics and categorisation device counts for both grouping by Customer and Group (ie. NMIS configuration properties customer and group) are computed and presented. Finally the detailed availability stats are shown for all devices, in order of the devices' group memberships. Instead of determining an individual devices availability as the Node Availability Report does, the Grouped Availability Report is based on the overall availability metric and gives a summary of the availability of all the devices within a specific group. The summary section displays the number of devices within that group, the number customers within the group, the number of groups and the overall availability of them. The summary section will display devices with availability of 100%, 99 < 100%, 98 < 99%, and < 98% to easily understand if any group of devices has had unexpected downtime. The Grouped Availability Report also displays the Down%, Packet Loss %, No Data %, Uptime, and Downtime for a quick look at overall network health.
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