STS-n performance parameters

Overview

This section describes the performance monitoring parameters on terminated (STS-1, STS-3c, STS-12c) and intermediate STS-n (STS-1, STS-3c, STS-12c) paths that are cross-connected through the system. Intermediate SONET STS-n path performance monitoring applies to STS-n paths cross-connected to another SONET interface. Terminated SONET STS-n path performance monitoring applies to STS-n paths cross-connected to a non-SONET interface (for example, DS3).

Monitored parameters

The following table lists the SONET STS-n path 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 5-71: SONET STS-n performance parameters

Facility	Measured Provisionable Parameter	15-Min		1-Day
		Default	Range 1	Default	Range 1
STS-12c Path	Coding Violations (CV-P)	75	0–16383	750	0–1048575
STS-3c Path	Coding Violations (CV-P)	25	0–16383	250	0–1048575
STS-1 Path	Coding Violations (CV-P)	125	0–16383	150	0–1048575
STS-12c Path	Errored Seconds (ES-P)	60	0–900	600	0–65535
STS-3c Path	Errored Seconds (ES-P)	20	0–900	200	0–65535
STS-1 Path	Errored Seconds (ES-P)	12	0–900	100	0–65535
STS-n Path	Unavailable Seconds (UAS-P)	10	0–900	10	0–65535

Notes:

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

STS-n path parameters

Alcatel-Lucent 1850 TSS-5 monitors the following near end SONET STS path parameters on incoming (from the SONET interface) STS-n signals.

Coding violations (CV-P)

The Near-End STS Path Coding Violations (CVP) parameter for each SONET path is monitored. The CVP parameter increments once for each BIP error detected at the STS path layer (the B3 byte of the incoming SONET STS Path overhead). Up to 8 BIP errors can be detected per frame.

Errored seconds (ES-P)

The Near-End STS Path Errored Seconds (ESP) parameter for each SONET path is monitored. The ESP parameter increments once for each second where one or more STS Path layer BIP errors are detected or an AIS-P, LOP-P, or UNEQ-P defect is detected.

Currently this product detects 1-bit RDI, but treats it as though it is the high order bit of a 3-bit ERDI in that it includes UNEQ.

Severely errored seconds (SES-P)

The Near-End STS Path Severely Errored Seconds (SESP) parameter for each SONET path is monitored. The SESP parameter increments once for each second where 2400 or more STS Path layer BIP errors are detected or an AIS-P, LOP-P, or UNEQ-P defect is detected. Currently Alcatel-Lucent 1850 TSS-5 detects 1-bit RDI, but treats it as though it is the high order bit of a 3-bit ERDI in that it includes UNEQ.

Currently this product detects 1-bit RDI, but treats it as though it is the high order bit of a 3-bit ERDI in that it includes UNEQ.

Unavailable seconds (UAS-P)

The Near-End STS Path Unavailable Seconds (UASP) parameter for each SONET path is monitored. The UASP parameter increments once for each second where SESP is detected after ten consecutive seconds with SESP detected. UASP continues to increment once for each second until ten consecutive seconds without SESP are detected.

STS-n path PM report

Use the Performance → View PM Reports → STSn Path command to obtain the STS-n Path PM Report.