ADTRAN 4200659L2 User Manual
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Chapter 5 Statistics

Select STATISTICSfrom the MAINMENUto access STATISTICSmenus (see Figure 5-1). Alarm information and performance parameters are available for both the near and far ends of the network. Information is also given for the individual VTs and

T1/E1 lines.

Statistical information is given in screens based on the following time periods: the current 15-minuteinterval, a24-hourhistory (divided into 9615-minuteintervals), and the totals for the previous 24 hours. Also, a cumulative alarm count is given. This count continues indefinitely until reset by the user.

Figure 5-1.Statistics Menu

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STS-1STATISTICS

This menu provides submenus for alarm history and performance parameters (see Figure 5-2).

Figure 5-2.LocalSTS-1Statistics Menu

24 Hour Alarm History

The MX2800 STS-1keeps track of alarms for both the near and far ends of the network. You can view alarm history 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 since the last reset. The cumulative alarm count continues indefinitely untilCLEAR ALL STS-1 ALARM COUNTS is selected. SeeFigure 5-3andFigure 5-4 on page 5-5 for examples of alarm screens.

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The following alarm counts are provided in this menu:

Condition

Description

 

 

LOS

(Loss of Signal)

 

The unit has lost the network receive signal.

 

 

LOF

(Loss of Framing)

 

The unit detects a framing loss from the network.

 

 

LOP

(Loss of Pointer)

 

The unit is unable to detect a valid pointer in the

 

receive signal.

 

 

LOMF

(Loss of Multiframe)

 

The unit detects loss of H4 multiframe from the

 

network.

 

 

AIS-L

(Line Alarm Indication Signal)

 

The unit is receiving a line alarm indication signal.

 

The Section Terminating Equipment generates

 

AIS-Lafter detecting LOS or LOF.

 

 

AIS-P

(Path Alarm Indication Signal)

 

The unit is receiving a path alarm indication

 

signal. AIS-Pis defined as all ones in bytes H1,

 

H2, and H3 as well as all ones in the entire STS

 

synchronous payload envelope.

 

 

RFI-L

(Line Remote Failure Indication)

 

The unit is receiving a line remote failure

 

indication. RFI-Lis declared when the incoming

 

line remote defect indication (RDI-L,“110” pattern

 

in bits 6, 7, and 8 of the K2 line overhead byte)

 

lasts for 2.5 +/- 0.5 seconds.

 

 

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Condition

Description

 

 

RFI-P

(Path Remote Failure Indication)

 

The unit is receiving a path remote failure

 

indication. RFI-Pis declared when the incoming

 

path remote defect indication (RDI-P,“1” in bit 5 of

 

the G1 path overhead byte for contiguous frames)

 

lasts for 2.5 +/- 0.5 seconds.

 

 

SLM-P

(Path Signal Level Mismatch)

 

A received signal label is mismatched if it does not

 

equal the locally provisioned value or the value

 

“equipped non-specific”.

 

 

UEQ-P

(Path Unequipped)

 

The path is unequipped if it is not provisioned.

 

Byte C2 of the STS path overhead is set to zero.

 

 

The count given reflects the number of times the alarm or state has occurred (rather than the number of seconds the alarm was active).

Figure 5-3.LocalSTS-1Current Alarm Count Screen

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Figure 5-4.LocalSTS-124-HourAlarm History Screen

When a > or< symbol appears in an upper corner of the screen, you can use the arrow keys on your keyboard to scroll right or left to view additional information. See the upperright-handcorner ofFigure 5-4.

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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 5-5,Figure 5-6, andFigure 5-7 on page 5-7 for examples of the performance parameter screens.

Descriptions of the fields in each screen follows.

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

Figure 5-6.LocalSTS-1Performance Parameters (24 Hour History)

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Figure 5-7.LocalSTS-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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