Line Thresholds (SDH Thresholds)


Use the Line Thresholds subtab to provision the thresholds for the TXP or MXP cards provisioned for STM-N payloads. The thresholds that appear depend on whether you choose near or far end, line or section thresholds.

Item

Description

Port

The port number.

EB

Path Errored Block (EB) indicates that one or more bits are in error within a block.

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.

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.

BBE

Background Block Error (BBE) is an errored block not occurring as part of an SES.

UAS

Path Unavailable Seconds (UAS) is a count of the seconds when the path was unavailable.

Directions

Select Near End or Far End for the PM direction.

Intervals

Select 15 Min or 1 Day for the PM interval.

Types

Select line, section, or path, where applicable.

Refresh

Refreshes the tab fields.

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.