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Appendix E: Line Status Utility
5536 PRI RAS Communications Controller Users Guide 175
Statistics Parameters
The following statistics fields display performance parameters
accumulated during the last 24 hours the interface was
running:
Parameter Meaning
Uptime Length of time that the interface has been running.
Unavailable
Seconds
(Also known as UAS.) Number of seconds that the
interface has been unavailable. The DS1 interface is
considered unavailable from the onset of 10 contiguous
SESs, or the onset of the condition leading to a failure.
Errored
Seconds
(Also known as ES.) Number of seconds during which any
of the following have existed:
• One or more PCV
• One or more LOF
• One or more CS
• Detected AIS defect
Severely
Errored
Seconds
(Also known as SES.) For SES signals, number of seconds
during which any of the following existed:
• 320 or more PCVs
• One or more LOFs
• Detected AIS defect
CSs are not included in this parameter.