OC-n performance parameters

Overview

This section describes the performance monitoring parameters that are applicable to SONET OC-n (OC-3, OC-12, OC-48) signals.

Monitored parameters

The following table lists the SONET OC-n section and line performance parameters that Alcatel-Lucent 1850 TSS-5 monitors, including the default and ranges for the 15-minute and 1-day (24-hour) registers.

Table 5-72: SONET OC-n performance parameters

Facility	Measured Provisionable Parameter	15-Min		1-Day
		Default	Range 1	Default	Range 1
OC-n Section	SE Frame Seconds (SEFS)	10	0–900	30	0–65535
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)	40	0–900	900	0–65535
	Severely Errored Seconds (SES-L)	30	0–900	90	0–65535
	Unavailable Seconds (UAS-L)	30	0–900	89	0–65535
	Protection Switch Count Line (PSC-L)	2	0–63	4	0–255
	Pointer Justification Count Difference (PJCDIFF-P)	60	0–1048575	5760	0–16777215

Notes:

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

OC-n line parameters

Alcatel-Lucent 1850 TSS-5 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 ESL 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 an AIS-L defect.

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.

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 1850 TSS-5 monitors the first good cross-connected STS or the provisioned 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.

OC-n line PM report

Use the Performance → View PM Reports → OCn Line command to obtain the OC-n Line PM Report.