SONET Thresholds (DS-1 and DS-3 Cards)


The table below provides SONET thresholds for the following cards/ports:

Near End

Select Near End to display the near-end thresholds.

Far End

Select Far End to display the far-end thresholds.

15 Min

Select to enter threshold information for a generation of 15-minute TCAs.

1 Day

Select to enter threshold information for a generation of 1-day TCAs.

STS

Select the bullet and click Show Thresholds to display the STS termination thresholds.

VT

(ONS 15454 [DS3XM-6 card] and ONS 15310-CL [15310-CL-CTX card] only) Select the bullet and click Show Thresholds to display the VT termination thresholds.

Show Thresholds

Shows selected thresholds.

Port

The port number.

CV

The number of coding violations. Coding violations are bit interleaved parity errors that are detected in the incoming signal. A threshold is associated with this parameter, and the table cell will be flagged in red when it exceeds the threshold. You can set thresholds using the CLI.

ES

The number of errored seconds. An errored second is a one-second period with one or more coding violations at that layer or one or more incoming defects at that layer.

FC

The failure count.

SES

The number of severely errored seconds. A severely errored second is a one-second period with x or more coding violations at that layer one or more incoming defects at that layer. The value of x depends on the line rate and bit error rate.

UAS

The unavailable seconds.

Apply

Applies changes made to the fields in the tab.

Reset

Cancels any changes to the tab and returns the fields to their last-saved settings.

Help

Displays context-sensitive help.