OTN > G.709 Thresholds


The OTN > G.709 Thresholds tab allows you to provision the IEEE G.709 thresholds for the TXP and MXP cards.

Port

Displays the port number.

ES

Sets the threshold for 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.

SES

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

UAS

Sets the threshold for the unavailable seconds.

BBE

Sets the threshold for the background block errors.

FC

Sets the threshold for the failure count.

Directions

Select Near End or Far End for the PM direction.

Intervals

Select 15 Min or 1 Day for the PM interval.

Types

Two types are available:

  • SM (OTUk)-Optical channel transport unit order of k section monitoring. The OTUk includes FEC and overhead for management and PM. The FEC is based on Reed Solomon specified in the ITU-T G.975 standard.

  • PM (ODUk)-Optical channel data unit order of k performance monitoring. The ODUk is composed of several overheads for path performance monitoring, tandem connection monitoring (TCM), communication channels, and protection control (APS/PCC).

Refresh

Refreshes the display after the interval is changed.

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.