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
Displays the port number.
EB
Path errored block (EB) indicates that one or more bits are in error within a block.
ES
Displays 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
Displays the number of severely errored seconds. A severely errored second is a one-second period with x or more coding violations at 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 performance monitoring (PM) direction.
Intervals
Select 15 Min or 1 Day for the PM interval.
Types
Select MS, RS, or Path, where applicable. Some cards have the option to choose from Multiplex Section, Regenerator Section, or VC LO.
Refresh
Refreshes the tab fields.
Reset to Default
Resets the threshold values to the node default threshold values.
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.

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