VeEX MPA, User Manual

Page: 362 / 842

SONET Tab
362
OC-768 22,778 errors per second
OC-192 8,554 errors per second
OC-48 2,392 errors per second
OC-12 616 errors per second
OC-3 115 errors per second
OC-1 52 errors per second
Perf Monitor - Line
(Specifically for SONET testing)
The Line screen displays a detailed breakdown of incoming B2 (Line BIP-8, also known
as Coding Violations) and Line Remote Error Indicator (REI-L) errors.
The following statistics are reported:
Line - Near End B2 Errors
•
CV - Coding Violations . Reports an error count of incoming B2 errors.
•
ES - Errored Seconds . Reports the duration of the incoming B2 errors in
seconds and the percentage of errored seconds compared to the duration of
error free seconds.
•
EFS - Error Free Seconds . Reports the duration of the incoming B2 error free
seconds and 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 B2 errors per second
equals or exceeds the
Line SES Threshold (see table below), or when a
Severely Errored Frame (SEF) alarm, Loss of Frame (LOF) alarm, Loss of Signal
(LOS) alarm, or Line Alarm Indication Signal (AIS-L) alarm is present.
•
UAS - Unavailable Seconds . Reports the number of seconds that the Line layer
was considered unavailable. A Line is considered unavailable when at least 10
consecutive Severely Errored Seconds
occur.
MPA_e_manual_D07-00-129P_RevA00