Uptime reports overview

General information

The Uptime reports display downtime in the HH:MM:SS format. The uptime percentage calculations use milliseconds along with the HH:MM:SS information displayed.

Uptime is calculated as follows:

Uptime %=( [Total Time-Downtime]/Total Time)*100

Where

Downtime is the time for which the SAP or service was down

Total Time is the time span defined in the Report Range field, considering any SAP or service creation and deletion events

If a SAP or service creation or deletion occurred within the report range, the total time would be adjusted accordingly.

For example, if the report range is 10:00:00 to 15:00:00 and there is a creation event at 11:00:00 and a deletion event at 12:00:00, the total time would be from 11:00:00 to 12:00:00.

Note: Uptime percentage will be 0 when service/SAP is down and also with no outages. Same is applicable even though service/SAP is excluded.

Prerequisites

The following tasks need to be performed using NSP Classic management for Uptime reports to be created:

• Configure the retention time for assurance events. The default retention time is one week. The maximum retention time for the auxiliary database is one year, which is recommended.

  See the NSP NFM-P Classic Management User Guide for information about event log policies.

• Enable event logging for the following object types in the Timeline Settings in the NSP.

  Service Port Site

  Endpoints Tunnel binding

• Configure the customer; see information in the NSP NFM-P Classic Management User Guide about creating a customer profile. Customer names must be unique.

• Populate the maintenance window table in the NSP auxiliary database with udetails of NE and service maintenance, as described in To add data to the samdb maintenance-window table in an auxiliary database.

  The report runs if the table is not created or empty; however, in such a case, maintenance windows are treated as down time when availability is calculated.

Note: Customer Utilization Summary and Customer Uptime Summary reports may not complete if they are run on customers with more than 100 000 services.