SDH Thresholds (ASAP, STM-N, and MRC-N Cards)
Use the SDH Thresholds tab to provision the multiplex section (MS), regenerator section (RS), and path card thresholds. The thresholds shown depend on the direction (near or far end) and types (multiplex section, regenerator section, path) that you choose. (Thresholds are not displayed until a circuit is created.) The STM1E-12 card does not display all of the fields listed in the table on the Provisioning > SDH Thresholds tab. For a list of ONS nodes and cards that support this subtab, see Provisioning.
 
Port
Displays the port number.
EB
(MS, RS, Path) Errored block indicates that one or more bits are in error within a block.
ES
(MS, RS, Path) 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
(MS, RS, Path) Displays the number of severely errored seconds. A severely errored second is a one-second period with x or more coding violations at Layer 1 or more incoming defects at that layer. The value of x depends on the line rate and bit error rate.
BBE
(MS, RS Path) A background block error is an errored block not occurring as part of an SES.
UAS
(MS, Path) Displays the unavailable seconds.
BEC
(STM1E-12 cards only; MS, RS, Path) Displays basic error correction.
PSC
(MS) Displays the protection switching count.
PSD
(MS) Displays the protection switching duration.
PSC-W
(MS) Displays the working protection switching count.
PSD-W
(MS) Displays the working protection switching duration.
PSC-S
(MS) In a four-fiber multiplex section-shared protection ring (MS-SPRing), protection switching count-span is a count of the number of times service switches from a working line to a protection line plus the number of times it switches back to the working line. A count is only incremented if span switching is used.
PSD-S
(MS) In a four-fiber MS-SPRing, protection switching duration-span is a count of the seconds that the protection line was used to carry service. The count is only incremented if span switching is used.
PSC-R
(MS) In a four-fiber MS-SPRing, protection switching count-ring is a count of the number of times service switches from a working line to a protection line plus the number of times it switches back to a working line. The count is only incremented if ring switching is used.
PSD-R
(MS) In a four-fiber MS-SPRing, protection switching duration-ring is a count of the seconds that the protection line was used to carry service. The count is only incremented if ring switching is used.
PPJC-PDET
(Path) Displays the positive pointer justification count, path detected.
NPJC-PDET
(Path) Displays the negative pointer justification count, path detected.
PPJC-PGEN
(Path) Displays the positive pointer justification count, path generated.
NPJC-PGEN
(Path) Displays the negative pointer justification count, path generated.
PJCDIFF
(Path) Pointer justification count difference is the absolute value of the difference between the total number of detected pointer justification counts and the total number of generated pointer justification counts. That is, PJCDiff is equal to (PPJC-PGen – NPJC-PGen) – (PPJC-PDet – NPJC-PDet).
PJCS-PDET
(Path) Pointer justification count seconds, path detected is a count of the one-second intervals containing one or more PPJC-PDet or NPJC-PDet.
PJCS-PGEN
(Path) Pointer justification count seconds, path generated is a count of the one-second intervals containing one or more PPJC-PGen or NPJC-PGen.
Directions
Select near end or far end for the PM direction.
Intervals
Select 15 Min or 1 Day for the PM interval.
Types
Select Multiplex Section, Regeneration Section, or Path, where applicable.
Refresh
Refreshes the tab fields.
Reset to Default
Resets the values of all thresholds 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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