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Paradyne 3166 CSU User Manual

Page 107

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Configuration Options

C-5

3166-A2-GB20-10

November 1998

Table C-1.

Port Configuration Options (4 of 5)

Err Rate: 10E-4
Next 10E-4 10E-5 10E-6 10E-7 10E-8 10E-9 Prev

Port Excessive Error Rate Threshold. Sets the error rate threshold that determines
when an Excessive Error Rate (EER) condition is declared for a particular port. The
error rate selected by this configuration option is determined by the ratio of the number
of CRC5 errors to the total number of bits received over a set period of time.

10E-4 – 10E-4 Threshold. For example, at 1536 kbps, EER is declared if more than
1,535 CRC5 errors are detected in a 10-second period. It is cleared with less than 1,536
errors in 10 seconds.

10E-5 – 10E-5 Threshold. For example, at 1536 kbps, EER is declared if more than 921
CRC5 errors are detected in a 60-second period. It is cleared with less than 922 errors
in 60 seconds.

10E-6 – 10E-6 Threshold. For example, at 1536 kbps, EER is declared if more than 92
CRC5 errors are detected in a 60-second period.

It is cleared with less than 93 errors in

60 seconds.

10E-7 – 10E-7 Threshold. For example, at 1536 kbps, EER is declared if more than 9
CRC5 errors are detected in a 60-second period. It is cleared with less than 10 errors in
60 seconds.

10E-8 – 10E-8 Threshold. For example, at 1536 kbps, EER is declared if more than 41
CRC5 errors are detected in three 15-minute intervals. It is cleared with less than 42
errors in three 15-minute intervals.

10E-9 – 10E-9 Threshold. For example, at 1536 kbps, EER is declared if more than 4
CRC5 errors are detected in three 15-minute intervals. It is cleared with less than 5
errors in three 15-minute intervals.

NOTE:

This configuration option is not available if EDL is disabled.

Near-end: Disab
Next Disab Maint Send Both Prev

Near-End Performance Statistics. Specifies whether the DSU/CSU maintains near-end
performance statistics and sends performance report messages (PRMs) for Port1.

Disab – Disables near-end performance statistics and does not send PRMs.

Maint – Maintains near-end performance statistics for this port.

Send – Sends PRMs over the port’s EDL every second. Each PRM contains the
performance statistics for the previous 4 seconds.

Both – Maintains near-end performance statistics and sends PRMs over the port’s EDL.

NOTES: – This configuration option is not available if

EDL is disabled.

– If the local DSU/CSU is configured to send near-end performance

statistics, then the remote device must be configured to maintain
far-end performance statistics.

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