190 CHAPTER 5: PATHBUILDER S330 DIAGNOSTICS AND PERFORMANCE STATISTICS
OC3/STM-1 Section Performance Statistics The OC3/STM-1 Section
Performance Monitoring screen displays the following statistics:
ES—The number of errored seconds (ESs) encountered by the OC3/STM-1 section.
SES—The number of severely-errored seconds (SESs) encountered by the
OC3/STM-1 section.
SEFS—The number of severely errored framing seconds (SEFSs) encountered by
the OC3/STM-1 section.
CVS—The number of coding violations (CVs) encountered by the OC3/STM-1
section.
LOS—The number of Loss of Signal (LOS) conditions encountered by the
OC3/STM-1 section.
LOF—The number of Loss of Frame (LOF) conditions encountered by the
OC3/STM-1 section.
OC3/STM-1 Line Performance Statistics The OC3/STM-1 Line Performance
Monitoring screen displays the following statistics:
ES—The number of errored seconds (ESs) encountered by the OC3/STM-1 line.
SES—The number of severely-errored seconds (SESs) encountered by the
OC3/STM-1 line.
UAS—The number of unavailable seconds (UASs) encountered by the OC3/STM-1
line.
CVS—The number of coding violations (CVs) encountered by the OC3/STM-1 line.
AIS—Indicates whether or not an Alarm Indicator Signal (AIS) condition has been
encountered by the OC3/STM-1 line.
RDI—Indicates whether or not a Remote Defect Indication (RDI) condition has
been encountered by the OC3/STM-1 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.
OC3/STM-1 Far Line Performance Statistics The OC3/STM-1 Far Line
Performance Monitoring screen displays the following statistics:
ES—The number of far end errored seconds (ESs) encountered by the OC3/STM-1
interface.
SES—The number of far end severely-errored seconds (SESs) encountered by the
OC3/STM-1 interface.
UAS—The number of far end unavailable seconds (UASs) encountered by the
OC3/STM-1 interface.
CVS—The number of far end coding violations (CVs) encountered by the
OC3/STM-1 interface.
OC3/STM-1 Path Performance Statistics The OC3/STM-1 Path Performance
Monitoring screen displays the following statistics:
ES—The number of errored seconds (ESs) encountered by the OC3/STM-1 path
interface.
SES—The number of severely-errored seconds (SESs) encountered by the
OC3/STM-1 path interface.
