Configuration of SLA (Service Level Agreement) thresholds is done under Account > SLA in the main menu. SLAs thresholds are used in Netrounds to quickly display if the network or service you are monitoring exhibits good, acceptable, or bad performance.
You can set a global default value for SLA thresholds. This value should of course tally with the actual operator SLA or with other agreed SLA levels in order to be a reliable metric.
Note that you can override this default SLA threshold when setting up or editing a monitoring.
Good SLA: Threshold for "good" fulfillment of the service level agreement (green SLA icon). By default this requirement is (100 – ES) >= 99.95%, or in other words, the percentage of errored seconds must not exceed 0.05%.
Acceptable SLA: Threshold for "acceptable" fulfillment of the service level agreement (orange SLA icon). The default requirement is (100 – ES) >= 99.5%, that is, the percentage of errored seconds must not exceed 0.5%.
If the percentage of errored seconds is higher than the Acceptable threshold, the SLA fulfillment is categorized as Bad (red SLA icon). With the default settings, this means that (100 – ES) < 99.5%, i.e. ES > 0.5%.