SYSTEM STATISTICS

WAN L1P Statistics

WAN L1P STATISTICS

You can access WAN L1P statistics by issuing the wan l1p stats display

<slot #> console command. These statistics are divided into the following groups of statistics: PRI S/T (T1/E1) interface statistics, error statistics, and layer 1 general statistics. These groups are defined below.

PRI S/T (T1/E1) INTERFACE STATISTICS

Layer 1 Up

The number of times layer 1 has reported itself up to the upper ISDN layers.

Layer 1 Down

The number of times layer 1 has reported itself down to the upper ISDN layers.

L1 Deactivates

The number of times the upper ISDN layers requested layer 1 to deactivate.

Loss of Frame (RED)

The number of times layer 1 has detected a qualified loss of frame condition; excluding AIS (alarm indication signal).

Loss of Signal (RED)

The number of times layer 1 has detected an all zero signal (or complete lack of signal).

AIS (Blue)

The number of times layer 1 has detected a qualified unframed all ones signal.

RAI (Yellow)

The number of times layer 1 has detected a qualified RAI (remote alarm indication) signal.

LAYER 1 PRI ERROR STATISTICS

Note: Layer 1 PRI error statistics apply to the line connected to the indicated slot.

Bipolar Violations

The number or times there has been either a mismatch between encoding types (B8ZS not selected) or line noise.

ESF CRC Errors

The number of Cyclic Redundancy Check (CRC) errors in the PRI framing format (ESF framing only).

Framing Bit Errors

The number of errors in the framing bits of the PRI layer 1 framing format.

Recv Negative Slips

The Number of PRI frames lost due to timing problems in the negative direction.

Global Parity Errors

The number of parity errors seen across all transmit and receive channels.

Central Site Remote Access Switch 659

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Enterasys Networks CSX7000, CSX5500, CSX6000 manual WAN L1P Statistics, Layer 1 PRI Error Statistics