High Utilization
event definition:
CurrentUtilization > UtilizationThreshold;
CurrentUtilization =
((TrafficRate * 8) / MaxSpeed * 100;
TrafficRate =
= ifInOctetsRate + ifOutOctetsRate; if DuplexMode is HALFDUPLEX
= max(ifInOctetsRate, ifOutOctetsRate) if DuplexMode is FULLDUPLEX
ifInOctetsRate =
= rate(ifInOctets, PollingInterval);
ifOutOctetsRate =
= rate(ifOutOctets, PollingInterval);
UtilizationThreshold = 40
simulation:
ifInOctets 1.3.6.1.2.1.2.2.1.10
ifOutOctets 1.3.6.1.2.1.2.2.1.16
or High capacity counter (not supported by all OS versions)
ifHCInOctets 1.3.6.1.2.1.31.1.1.1.6
ifHCOutOctets 1.3.6.1.2.1.31.1.1.1.10
To simulate high utilization, use the following value:
MaxSpeed/8 * 0.5
You can find MaxSpeed from Interface/Port property sheet.
The counters will wrap after sometime. Please make sure the rate
calculation is right when counters wrap.
expected: PerformanceException
-- HighUtilization
