ADTRAN 4200659L2 User Manual
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Chapter 5. Statistics

LOCAL PORT STATISTICS

The MX2800 STS-1keeps track ofLOSS OF SIGNAL ALARMS,

BIPOLARVIOLATIONCOUNTS, AIS LOOPALARMS, and AIS CARRIER

ALARMS for each of the Ports (T1s/E1s) (seeFigure 5-13).View this information in one of the three time period selections, or view a cumulative alarm count. Information in these fields is for the given time period (if any) since the last reset. The cumulative alarm count continues indefinitely untilCLEAR ALL PORT ALARM COUNTS (located in each field) is selected.

Figure 5-13.Local Port Statistics Menu

Loss of Signal Alarms

The number of times the unit has lost the receive signal on a T1/E1.

Bipolar Violation Counts

The number of times the unit has received a bipolar violation.

AIS Loop Alarms

The number of times the T1 has received all ones from the DSX-1interface.

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AIS Carrier Alarms

The number of times the T1 has received all ones from the STS side of the network.

FAR END STS-1STATISTICS

This menu provides a submenu performance parameters (see Figure 5-14).

Figure 5-14.Far EndSTS-1Statistics Menu

Performance Parameters

View performance parameter information for the network in one of the three time period selections. Information in these fields is for the given time period since the last reset. When viewing the 24-hourhistory statistics screen, use the left and right arrow keys to scroll through all 9615-minuteintervals. SeeFigure 5-15 andFigure 5-16 on page 5-17, andFigure 5-17 on page 5-18 for examples of the performance parameter screens.

Descriptions of the individual performance parameters fields follow the screens.

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Figure 5-15.Far EndSTS-1Performance Parameters (Current 15 Minutes)

Figure 5-16.Far EndSTS-1Performance Parameters (24 Hour History)

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Figure 5-17.Far EndSTS-1Performance Parameters (24 Hour Totals) Interval starting at:

Time that the 15-minuteinterval began. This field is displayed only in the24-hourhistory screen which gives information for the previous 24 hours divided into15-minuteintervals (shown inFigure 5-6 on page 5-6).

Severely Errored Framing Seconds (SEFS)

Number of seconds that contain one or more SEF events. This counter is only counted at the Section layer.

Section Coding Violations (SCV)

Number of coding violations encountered at the Section layer.

Line Coding Violations (LCV)

Number of coding violations encountered at the Line layer.

Path Coding Violations (PCV)

Number of coding violations encountered at the Path layer.

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Section Errored Seconds (SES)

Number of seconds with one or more coding violations or one or more incoming defects (e.g., SEF, LOS, AIS, LOP) at the Section layer.

Line Errored Seconds (LES)

Number of seconds with one or more coding violations or one or more incoming defects (e.g., SEF, LOS, AIS, LOP) at the Line layer.

Path Errored Seconds (PES)

Number of seconds with one or more coding violations or one or more incoming defects (e.g., SEF, LOS, AIS, LOP) at the Path layer.

Section Severely Errored Seconds (SSES)

Number of seconds with X or more coding violations at the Section layer, or a second during which at least one or more incoming defects at the Section layer has occurred. Values of X vary depending on the line rate and the Bit Error Rate.

Line Severely Errored Seconds (LSES)

Number of seconds with X or more coding violations at the Line layer, or a second during which at least one or more incoming defects at the Line layer has occurred. Values of X vary depending on the line rate and the Bit Error Rate.

Path Severely Errored Seconds (PSES)

Number of seconds with X or more coding violations at the Path layer, or a second during which at least one or more incoming defects at the Path layer has occurred. Values of X vary depending on the line rate and the Bit Error Rate.

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Line Unavailable Seconds (LUAS)

Time in seconds that the Line layer has been unavailable for data delivery.

Path Unavailable Seconds (PUAS)

Time in seconds that the Path layer has been unavailable for data delivery.

Clear All Far End STS-1Statistics

Clears all current information. This selection affects all statistical information (not just the displayed screen). When viewing the 24-hourhistory screen, press the down arrow key to access this selection.

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