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Viewing Performance and ATM Statistics
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3
Select the option corresponding to the type of performance monitoring (PM) data
you want to view: section, line, far line, path, or far path.
4
Select the option corresponding to the type of data you want to display (current,
interval, or total). The OC3/STM-1 Performance Monitoring screen displays the
current, interval, or total data for the type of statistic you selected in step 2b.
The following subsections list the statistics displayed for each of these types of
performance monitoring.
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