VeEX MPA, User Manual

Page: 364 / 842

SONET Tab
364
The Path screen displays a detailed breakdown of incoming B3 (Path BIP-8, also known
as Path Coding Violations) and STS Path Remote Error Indicator (REI-P) errors.
The following statistics are reported:
Path - Near End B3 Errors
•
CV - Code Violations . Reports an error count of incoming B3 errors.
•
ES - Errored Seconds . Reports the duration of the incoming B3 errors (in
seconds). This statistic also reports the percentage of errored seconds compared
to the duration of error-free seconds.
•
EFS - Error Free Seconds . Reports the duration of the incoming B3 error free
seconds. This statistic also reports the percentage of error-free seconds
compared to the duration of errored seconds.
•
SES - Severely Errored Seconds . Reports the duration of SES on the incoming
SONET signal. An SES is reported when the number of B3 errors per second
equals or exceeds
2,400 errors per second , or when an LOS alarm, SEF alarm,
LOF alarm, AIS-L alarm, LOP-P alarm, AIS-P alarm, UNEQ-P alarm is present.
•
UAS - Unavailable Seconds . Reports the number of seconds that the Path layer
was considered unavailable. A Path is considered unavailable when at least 10
consecutive Severely Errored Seconds
occur.
Path Far End REI-P Errors
•
CV - Code Violations . Reports an error count of incoming REI-P errors.
•
ES - Errored Seconds . Reports the duration of the incoming REI-P errors (in
seconds). This statistic also reports the percentage of errored seconds compared
to the duration of error-free seconds.
•
EFS - Error Free Seconds . Reports the duration of the incoming REI-P error
free seconds. This statistic also reports the percentage of error-free seconds
compared to the duration of errored seconds.
•
SES - Severely Errored Seconds . Reports the duration of SES on the incoming
SONET signal. An SES is reported when the number of REI-P errors per second
equals or exceeds
2,400 errors per second , or when a RDI-P alarm is present.
•
UAS - Unavailable Seconds . Reports the number of seconds that the Path layer
was considered unavailable. A Path is considered unavailable when at least 10
consecutive Severely Errored Seconds
occur.
Perf Monitor - VT Path
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