Polycom MGC Administrator Administrator's Manual page 541

Table C-1: Performance Monitoring Options (Continued)
Error Condition
Error Seconds (ES)
Severely Error Seconds
(SES)
Severely Errored
Framing Seconds
(SEFS)
Unavailable Seconds
(UAS)
Controlled Slip
Seconds (CSS)
Path Code Violation
(PCV)
Line Errored Seconds
(LES)
Bursty Errored
Seconds (BES)
Degraded Minutes
(DM)
MGC Administrator's Guide
Description
ES is a second with one or more Path Code
Violations (PCV), or one or more Out Of Frame
(OOF) defects, or one or more Controlled Slip
(CS) events, or where AIS defects have
occurred.
SES is a second with 320 or more Path Code
Violation (PCV) error events, or one or more Out
Of Frame (OOF) defects, or where AIS defects
have occurred.
SEFS is a second with one or more Out Of
Frame (OOF) defects, or where AIS defects have
occurred.
Unavailable Seconds are calculated by counting
the number of one-second intervals during which
the ISDN line is unavailable as a result of 10
contiguous SES errors, or when there are yellow
and red alarms, CRC errors or synchronization
problems.
Controlled Slip Seconds are calculated by
counting the number of one-second intervals
during which one or more Controlled Slip events
occurred.
A frame synchronization bit error. See detailed
explanation above.
A second in which one or more Line Code
Violation error events were detected.
A second in which fewer than 320 and more than
one Path Code Violation error events were
detected.
A condition when one or more of the established
performance parameters fall outside
predetermined limits and results in a lower quality
of service.
C-7