Viewing Performance and ATM Statistics 191UAS—The number of unavailable seconds (UASs) encountered by the OC3/STM-1path interface.CVS—The number of coding violations (CVs) encountered by the OC3/STM-1 pathinterface.LOP—Indicates whether or not a Loss of Pointer (LOP) condition has beenencountered by the OC3/STM-1 path interface.AIS—Indicates whether or not an Alarm Indicator Signal (AIS) condition has beenencountered by the OC3/STM-1 path interface.RDI—Indicates whether or not a Remote Defect Indication (RDI) condition hasbeen encountered by the OC3/STM-1 path interface. Also known as FERF (Far EndReceive Failure). This is the alarm that is generated when a far end AIS or LOPdefect is detected.UEQ—Indicates whether or not an Unequipped (UEQ) condition has beenencountered by the OC3/STM-1 path interface. If a path is not provisioned (i.e. it isidle), the SONET equipment will signal this state.PLM—Physical Layer Module.OC3STM-1 Far Path Performance Statistics The OC3/STM-1 Far PathPerformance Monitoring screen displays the following statistics:ES—The number of far end errored seconds (ESs) encountered by the OC3/STM-1path interface.SES—The number of far end severely-errored seconds (SESs) encountered by theOC3/STM-1 path interface.UAS—The number of far end unavailable seconds (UASs) encountered by theOC3/STM-1 path interface.CVS—The number of far end coding violations (CVs) encountered by theOC3/STM-1 path interface.Viewing OC3/STM-1 ATM StatisticsTo view OC3/STM-1 ATM statistics, follow these steps:1 From the Performance Management menu, select [4] OC3/STM-1 UNI. TheOC3/STM-1 Performance Management menu appears.2 Select [2] ATM Statistics. ATM cell statistics are cell counts since the last counterreset. On the OC3/STM-1 ATM Statistics screen, you can reset the counter byentering [c].The OC3/STM-1 ATM Statistics menu provides the following information:Cells Received—The number of ATM cells received on the OC3/STM-1 since thelast user reset of this counter.Cells transmitted—The number of ATM cells transmitted on the OC3/STM-1since the last user reset of this counter.Cells with uncorrectable HCS errors—The number of idle/unassigned cellsencountered and dropped on the interface due to uncorrectable HCS errors.Cells with correctable HCS errors—The number of header check sequence(HCS) errored cells encountered on the ATM interface.
