Name Type Values (Range) Unit DescriptionNonIPPackRecNorm INTEGER - - Number of non IP packetsreceived in normal modeNonIPPackRecPoll INTEGER - - Number of non IP packetsreceived in polled modeNonIPPackDisc INTEGER - - Number of non IP packetsdiscarded17.14.4 Operation principleThe Denial of service functions (DOSLAN1 and DOSFRNT) measures the IED loadfrom communication and, if necessary, limit it for not jeopardizing the IEDs controland protection functionality due to high CPU load. The function has the following outputs:• LINKUP indicates the Ethernet link status• WARNING indicates that communication (frame rate) is higher than normal• ALARM indicates that the IED limits communicationSection 17 1MRK 502 043-UUS BBasic IED functions580Technical Manual
