Appendix F: Using the LineStatus Utility

Statistics Parameters

The following statistics fields display performance parameters accumulated during the last 24 hours the interface is running:

Parameter

Meaning

 

 

Uptime

Length of time that the interface has been running.

 

 

UnAvailable

(Also known as UAS). Number of seconds that the

Seconds

interface is 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

(Also known as ES). Number of seconds during which any

Seconds

the following have existed:

 

One or more PCV

 

One or more LOF

 

One or more CS

 

Detected AIS defect

 

 

Severely

(Also known as SES). For ESF signals, number of seconds

Errored

during which any of the following have existed:

Seconds

320 or more PCVs

 

 

One or more LOFs

 

Detected AIS defect

 

CSs are not included in this parameter.

 

 

 

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