ErrorRate/DiscardRate

Unanswered Question
Joe Clarke Fri, 04/25/2008 - 10:20
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High Discard rate is calculated using the formula:


HighDiscardRate = ( InputPacketDiscardPct > DiscardThreshold || OutputPacketDiscardPct > DiscardThreshold)


A discard rate is calculated using:


PacketDiscardRate / PacketQueueRate * 100


The discard rate is built using if{In,Out}Discards over the polling interval. The packet queue rate is build using if{In,Out}UcastPkts + if{In,Out}NUcastPkts + if{In,Out}Discards over the polling interval.


HighErrorRate is built using the formula:


(InputPacketErrorPct > ErrorThreshold || OutputPacketErrorPct > ErrorThreshold)


The PacketErrorPct is built using:


PacketErrorRate / PacketRate * 100


PacketRate is either the input or output utilization, and PacketErrorRate uses the following objects based on the interface type:


if{In,Out}Errors

dot3StatsFCSErrors

dot3StatsInternalMacReceiveErrors

dot3StatsAlignmentErrors

dot3StatsFrameTooLongs

dot3StatsCarrierSenseErrors

dot3StatsInternalMacTransmitErrors

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