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  • NMIS checks for current outages whenever alerts or escalations are processed; If an outage is current, then alerting is suppressed.
  • NMIS does, however, not suspend polling during an outage.
  • While an outage is current and a node does not respond to ICMP or SNMP, then the KPI's for that poll are set to U (unknown, which prevents them from contributing to averages), this is so the overall reachability and availability results are not reduced for that node which has a planned outage.  The KPI's included in this exclusion are:
    • reachability
    • availability
    • intfTotal
    • responsetime
    • health
    • loss
  • Furthermore, the state of nodes with current outages does not contribute to the overall health metrics and KPIs, which helps with reporting statistics so your teams performance will look better!
  • In version 8.6.2 and newer, the per-node status view displays current and scheduled/future outages prominently.
  • In version 8.6.2 and newer, the events Planned Outage Open and Planned Outage Closed are raised for each polled device that enters or leaves an outage window.
  • In version 8.6.2 and newer NMIS tracks the state of outages per node and shows a translucent overlay on the node health graph for each outage.

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