Cisco Systems IPMUX-1E Table E-27. E1/T1 Statistics, Table E-28. Link Status Parameters

IPmux-1/1EInstallation and Operation ManualAppendix E Configuration Menus

				Table E-27. E1/T1 Statistics (Cont.)
Alarm	Failure		Comments
DM	Degraded		A Degraded Minute is calculated by collecting all of the available seconds,
	Minutes		subtracting any SESs and sorting the result in 60 second groups
			A Degraded Minute is a 60 second group in which the cumulative errors
			during the 60-second interval exceed 1x10-6
			T1-ESF or E1-CRC4 modes
ES	Errored		For E1/T1: Any second containing the following error events:
	Second (If any		•	CRC
	error occurs
	during one		•	SEF (OOF)
	second)		•	AIS (T1 only)
			If SES is also active (see below) ES runs for 10 seconds and then stops
SES	Severely		Any second containing the following errored events is counted as severely
	Errored		errored seconds:
	Seconds		For E1/T1:
			• If 320 or more CRC error events
			• One or more SEF (OOF) events
			• One or more AIS events occurred (for T1 only)
UAS	Unavailable		Activated when there are 10 consecutive SES occurrences and deactivated
	Seconds		as a result of 10 consecutive seconds without SES
LOMF	Loss of		Loss Of Framing sequence in Timeslot 16
	Framing		E1 CAS mode only
	Table E-28lists the parameters can be monitored from the Link Status menu.
				Table E-28. Link Status Parameters
Parameter		Description
Valid Intervals		Number of 15-minute intervals stored in the system since power-up
Time Since		Elapsed time since the beginning of the current interval
		(interval 0). This is displayed only when the current interval is monitored.
Interval Number		Number of the interval to be displayed
		Interval number 0 (zero) is the current interval. The current interval display is
		continuously updated. The elapsed time since the beginning of the interval is
		displayed.
Start Time		Time and date when the monitored interval started
		Displayed only when viewing previous intervals.
Prev		Displays the previous interval
		From the first interval (current interval = 0) Prev is not visible.
Next		Displays the next interval
		The number of valid intervals is displayed. From the last valid interval Next is not
		visible.

Performance Monitoring E-43