Cisco Systems 15310-MA manual 11-12

Chapter 11 Performance Monitoring

Performance Monitoring Parameter Definitions

		Table 11-2	Performance Monitoring Parameters (continued)
		Parameter		Definition
		SESR-P		Path Severely Errored Second Ratio (SESR-P) is the ratio of SES to total
				seconds in available time during a fixed measurement interval.
		SESR-PM		Path Monitoring Severely Errored Seconds Ratio (SESR-PM) indicates the
				severely errored seconds ratio recorded in the OTN path during the PM
				time interval.
		SES-SM		Section Monitoring Severely Errored Seconds (SES-SM) indicates the
				severely errored seconds recorded in the OTN section during the PM time
				interval.
		Tx AISS-P		Transmit Path Alarm Indication Signal (AISS-P) means that an alarm
				indication signal occurred on the transmit end of the path. This parameter
				is a count of seconds containing one or more AIS defects.
		Tx BBE-P		Transmit Path Background Block Error (BBE-P) is an errored block not
				occurring as part of an SES.
		Tx ES-P		Transmit Path Errored Second (ES-P) is a one-second period with one or
				more errored blocks or at least one defect.
		Tx ESR-P		Transmit Path Errored Second Ratio (ESR-P) is the ratio of errored seconds
				to total seconds in available time during a fixed measurement interval.
		Tx SES-P		Transmit Path Severely Errored Seconds (SES-P) is a one-second period
				containing 30 percent or more errored blocks or at least one defect; SES is
				a subset of ES.
		Tx SESR-P		Transmit Path Severely Errored Second Ratio (SESR-P) is the ratio of SES
				to total seconds in available time during a fixed measurement interval.
		Tx UAS-P		Transmit Path Unavailable Seconds (UAS-P) is a count of one-second
				intervals when the E-1 path is unavailable on the transmit end of the signal.
				The E-1 path is unavailable when ten consecutive SESs occur. The ten
				SESs are included in unavailable time. After the E-1 path becomes
				unavailable, it becomes available when ten consecutive seconds occur with
				no SESs. The ten seconds with no SESs are excluded from unavailable
				time.
		Tx BBER-P		Transmit Path Background Block Error Ratio (BBER-P) is the ratio of BBE
				to total blocks in available time during a fixed measurement interval. The
				count of total blocks excludes all blocks during SESs.
		Tx EB-P		Transmit Path Errored Block (EB-P) indicates that one or more bits are in
				error within a block.
		UAS		Path Unavailable Seconds (UAS) is a count of the seconds when the VC
				path was unavailable. A high-order path becomes unavailable when ten
				consecutive seconds occur that qualify as HP-SESs, and it continues to be
				unavailable until ten consecutive seconds occur that do not qualify as
				HP-SESs.
		UASCP-P		Unavailable Seconds CP-bit Path (UASCP-P) is a count of one-second
				intervals when the DS3 path is unavailable. A DS3 path becomes
				unavailable when ten consecutive SESCP-Ps occur. The ten SESCP-Ps are
				included in unavailable time. After the DS3 path becomes unavailable, it
				becomes available when ten consecutive seconds with no SESCP-Ps occur.
				The ten seconds with no SESCP-Ps are excluded from unavailable time.
	Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2
11-12			78-19417-01