We have an IT SERVICE to calculate SLA INTERNET LINK.

This LINKS IT SERVICE are grouped by Type of Link, Regional Unit, Internet Provider Name, Kind of Link.

The IT SLA calculation shows 0% when only one child is still active.

Each IT service is grouped by: Type of link, Internet Operator and Regional Unit.

As shown in the print below the main service is with 0% SLA when only one child is unavailable.

Is this correct? I did not find the zabbix documentation on SLA calculation.

If I have 1 service with 4 children services and if only one of the children is unavailable, should the SLA be impacted by 25%?