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Monitoring SONET Performance
520 Avidia System Configuration and Management User Manual
Line Type The type of SONET line. The Avidia system currently supports
short-reach single-mode, multi-mode, and other SONET
lines.
Section Current Performance
Port The port number for which the Section current performance is
displayed (each line card has two ports).
Status Options:
• sonetSectionNoDefect
—There are no errors on the
SONET Section layer.
• sonetSectionLOS
—There is a Loss Of Signal on the
SONET Section layer.
• sonetSectionLOF
—There is a Loss Of Frame on the
SONET Section layer.
Errored Seconds The number of seconds during which at least one Section layer
bipolar error was detected or a severely errored frame or loss
of signal error was present.
Severely Errored Seconds The number of seconds during which 2,500 or more Section
layer bipolar errors were detected or a severely errored frame
or loss of signal error was present.
Severely Errored Framing
Seconds
The number of seconds during which a severely errored frame
error was present. A severely errored frame is detected when
the incoming signal has a minimum of four consecutive
errored framing patterns.
Coding Violation A count of bipolar errors detected at the Section layer.
Information Description