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