OC-N performance parameters

Overview

This section describes the performance monitoring parameters that are applicable to SONET OC-N signals.

Monitored parameters

The following table lists the SONET OC-N section and line performance parameters that Alcatel-Lucent 1665 DMXtend monitors, including the default and ranges for the 15-minute and 1-day (24-hour) registers.

Table 5-15: SONET OC-N performance parameters

Facility	Measured Provisionable Parameter	15-Min		1-Day
Facility	Measured Provisionable Parameter	Default	Range¹	Default	Range¹
OC-N Section	Section Errored Seconds (ESS)	30	0–900	90	0–65535
	SE Frame Seconds (SEFS/SEFS-S)	10	0–900	30	0–65535
	Severely Errored Seconds (SESS/LESS-S)	30	0–900	90	0–65535
OC-192 Section	Coding Violations (CV-L)	8960	0–16383	86016	0–1048575
OC-48 Section	Coding Violations (CV-L)	2240	0–16383	21504	0–1048575
OC-12 Section	Coding Violations (CV-L)	560	0–16383	5376	0–1048575
OC-3 Section	Coding Violations (CV-L)	140	0–16383	1344	0–1048575
OC-192 Line	Coding Violations (CV-L), CV-L FE	8960	0–16383	86016	0–1048575
OC-48 Line	Coding Violations (CV-L), CV-L FE	2240	0–16383	21504	0–1048575
OC-12 Line	Coding Violations (CV-L), CV-L FE	560	0–16383	5376	0–1048575
OC-3 Line	Coding Violations (CV-L), CV-L FE	140	0–16383	1344	0–1048575
OC-N Line	Errored Seconds (ES-L) Errored Seconds Far End (ES-L FE)	40	0–900	900	0–65535
	Far-End Line Failure Counts (FC-L) Far-End Line Failure Counts Far End (FC-L FE)	10	1–72	10	1–4095
	Severely Errored Seconds (SES-L) Severely Errored Seconds Far End (SES-L FE)	30	0–900	90	0–65535
	Unavailable Seconds (UAS-L) Unavailable Seconds Far-End (UAS-L FE)	30	0–900	90	0–65535
	Protection Switch Count Line (PSC-L)	2	0–63	4	0–255
OC-N Line	Pointer Justification Count Difference (PJCDIFF-P)	60	0–1048575	5760	0–16777215
	Negative Pointer Justification Count Detected (NPJC-PDET)	60	0–1048575	5760	0–16777215
	Positive Pointer Justification Count Detected (PPJC-PDET)	60	0–1048575	5760	0–16777215
	Negative Pointer Justification Count Generated (NPJC-PGEN)	60	0–1048575	5760	0–16777215
	Positive Pointer Justification Count Generated (PPJC-PGEN)	60	0–1048575	5760	0–16777215

Notes:

When an individual performance monitoring parameter threshold is provisioned as zero (0), TCA reporting for the affected parameter is disabled.

OC-N section parameter

Alcatel-Lucent 1665 DMXtend monitors the following near end SONET section parameters for incoming (from the lightguide cross-connect) OC-N signals. The parameters are measured at the input of the OC-N OLIU circuit pack on the line side (also referred to as LGX side).

Coding violations (CV-S)

The Section Coding Violations (CV-S) parameter for each SONET section is monitored. The CV-S parameter is a count of BIP errors at the Section Layer (i.e., B1 errors). Up to eight Section BIP errors can be detected per STS-N frame, each error increments the CV-S current second register.

Errored seconds (ES-S)

The Section Errored Seconds (ESS) parameter for each SONET section is monitored. The ESS parameter increments once for each second in which at least one Section Layer BIP error was detected or an SEF or LOS defect was present.

Severely errored frame seconds (SEFS/SEFS-S)

The SEFS/SEFS-S parameter increments once for each second during which Alcatel-Lucent 1665 DMXtend detects one or more near end severely errored frame defects.

OC-N section PM report

Use the Performance → Reports → OCn Section command to obtain the OC-N Section PM Report. For more information about the OC-N section parameter and the Performance → Reports → OCn Section command, see the WaveStar^® CITonline help.

OC-N line parameters

Alcatel-Lucent 1665 DMXtend monitors the following near end SONET line parameters for incoming (from the lightguide cross-connect) OC-N signals. The parameters are measured at the input of the OC-N OLIU circuit pack on the OC-N line side (also referred to as LGX side).

Coding violations (CV-L)

The Near-End Line Coding Violation (CVL) parameter for each SONET Line is monitored. The Near-End CVL parameter increments once for every occurrence of a BIP error detected at the Line layer (i.e. using the B2 byte in the incoming SONET signal). Up to 8*N BIP errors can be detected per STS-N frame.

Errored seconds (ES-L)

The Near-End Line Errored Seconds (ESL) parameter for each SONET Line is monitored. The Near-End CVL parameter increments once for every second that contains at least one BIP error detected at the Line layer (at any point during the second), or an AIS-L defect was present.

Severely errored seconds (SES-L)

The Near-End Line Severely Errored Seconds (SESL) parameter for each SONET Line is monitored. The Near-End SESL parameter increments once for every second that contains at least K BIP errors detected at the Line layer (at any point during the second), or an AIS-L defect was present. The value of K is hard-coded, see table 7 for a list of the values

Unavailable seconds (UAS-L)

The Near-End Line Unavailable Seconds (UASL) parameter for each SONET Line is monitored. The Near-End UASL parameter increments once for every second that the Line was considered unavailable (at any point during the second). A Line becomes unavailable at the onset of 10 consecutive seconds that qualify as Near-End SESLs, and continues to be unavailable until the onset of 10 consecutive seconds that do not qualify as Near-End SESLs.

Far-end line failure counts (FC-L)

The Far-End Line Failure Counts (FC-L) parameter for each SONET line is monitored. The Far-End FC-L parameter increments once for the beginning of each RFI-L event (RFI-L detected and cleared). A failure that begins in one period and ends in another period, is counted in the period in which it begins.

Protection switch count (PSC-L)

The PSC parameter records the number of times that service traffic switched to or from another line either automatically, by a WaveStar^® CIT command, or operations system command. The Near-End Protection Switch Counts (PSC-L) parameter for each SONET line (that supports 1+1 protection switching for that line) is monitored.

Pointer justifications counts difference (PJCDIFF-P)

This is a calculation of the absolute value of the PJC parameters listed under the headings below. PJCDIFF-P is used to calculate the difference between calculate the difference between the PPJC-PGEN, NPJC-PGEN and between PPJC-PDET and NPJC-PDET. Alcatel-Lucent 1665 DMXtend monitors the first cross-connected STS. From this STS, the calculation is to (A) calculate the difference between the PPJC-PGEN, NPJC-PGEN. (B) Calculate the difference of the PPJC-PDET, NPJC-PDET. The resulting PJC is the absolute value of the difference between A and B.

Negative pointer justifications counts detected (NPJC-PDET)

This parameter summarizes all Negative Pointer Justifications detected by the system. Alcatel-Lucent 1665 DMXtend monitors negative line Pointer Justifications on an STS-1 within the OC-n line in 1 second intervals. (Users may select which STS-1 to monitor by provisioning the PJC Monitoring point parameter using the Performance → Provision PM command.) The count increments for each incoming negative STS pointer justification.

Positive pointer justifications counts detected (PPJC-PDET)

This parameter summarizes all Positive Pointer Justifications detected by the system. Alcatel-Lucent 1665 DMXtend monitors positive line Pointer Justifications on an STS-1 within the OC-n line in 1 second intervals. (Users may select which STS-1 to monitor by provisioning the PJC Monitoring point parameter using the Performance → Provision PM command.) The count increments for each incoming positive STS pointer justification.

Negative pointer justifications counts generated (NPJC-PGEN)

This parameter summarizes all Negative Pointer Justifications generated by the system. Alcatel-Lucent 1665 DMXtend monitors negative line Pointer Justifications on an STS-1 within the OC-n line in 1 second intervals. (Users may select which STS-1 to monitor by provisioning the PJC Monitoring point parameter using the Performance → Provision PM command.) The count increments for each outgoing negative STS pointer justification.

Positive pointer justifications counts generated (PPJC-PGEN)

This parameter summarizes all Positive Pointer Justifications generated by the system. Alcatel-Lucent 1665 DMXtend monitors positive line Pointer Justifications on an STS-1 within the OC-n line in 1 second intervals. (Users may select which STS-1 to monitor by provisioning the PJC Monitoring point parameter using the Performance → Provision PM command.) The count increments for each outgoing positive STS pointer justification.

OC-N line PM report

Use the Performance → Reports → OCn Line command to obtain the OC-N Line PM Report. For more information about the OC-N line parameters and the Performance → Reports → OCn Line command, see the WaveStar^® CIT online help.