13 Cn3401een30gln1a Traffic Administration Exercise

Nokia Siemens Networks

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3G Rel4 SCNOM

Traffic Administration Exercises

Traffic Administration

2 (28) Nokia Siemens Networks

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Contents

1 Objectives ...............................................................................................4

2 Introduction ............................................................................................5 2.1 User interface...........................................................................................9

3 Traffic Measurements ..........................................................................10

4 Traffic Observations ............................................................................13

5 GSM Measurements.............................................................................15

6 Field Reporting.....................................................................................18

7 GSM Trace ............................................................................................20

8 MGW Measurements............................................................................22 8.1 Interface-specific TC measurement .......................................................23 8.2 ATM layer measurement ........................................................................24 8.3 Unit load measurement ..........................................................................25

9 PCM Statistic Measurement ................................................................27 9.1 PCM statistics permanent measurement ...............................................27 9.2 PCM statistics temporary measurement ................................................27



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1 Objectives After these exercises the participant should be able to:

Define the correct logical files to collect different types of reports

Start and stop circuit measurement, cell measurement, destination measurement and control unit measurement

Set and remove circuit observation and failed call observation

Start and stop VLR, HLR, and AC measurements

Start and print the report for different types of field reporting

Start and stop MGW measurements

Interpret and analyse the collecting report.


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2 Introduction By analysing the traffic administration report the operator can monitor the performances of the network, which can be divided into six groups:

1. Call traffic performance

2. Signalling traffic performance

3. Mobility performance

4. Security performance

5. Load and availability performance

6. Services performance.

To get the report for each performance, the operators have to define and start different types of measurements, observations or supervisions. There are many commands introduced for the NSS statistics function.

Traffic administration MML commands can be divided into the following main groups:

Traffic MeasurementsTraffic ObservationsGSM MeasurementsTraffic Supervisions

Load ObservationsField Reporting

GSM Tracing

ReportsTraffic data

Figure 1. Traffic administration



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The creation of the traffic data depends on the type of that measurement, observation or supervision.

In MSS

Traffic measurements :

1. Define object list.

There are nine objects, which can be measured and defined by different command groups:

Circuit groups TG

Destination-specific TD

Control unit TN

Traffic categories TR

Cell TK

Data service unit measurement T2

Announcement channels TF

Internal announcements TF

Directivity (from incoming circuit groups) TG , TD

Directivity (from incoming destination) TD

2. Create traffic measurement for the created object.

Command group TM

3. Start the created traffic measurement.

Command group TM

Start the Data service unit measurement T2

4. Stop the created traffic measurement.

Command group TM

Stop the Data service unit measurement T2

Traffic observation

1. Set the observation.

Command group TO

2. Remove the observation.

Command group TO


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Traffic supervision

1. Activate the supervision.

Disturbance TC

Circuit seizure TE

Circuit seizure times TT

2. Stop the supervision you just started.

Command group TC, TE, TT

GSM measurements

1. Create the measurement.

VLR TP

HLR TP

HO (handover) TP

AUC (authentication) TP

EIR TP

2. Start the measurement you created.

Command group TP

3. Stop the measurement.

Command group TP

Load observation

1. Set objects under observation.

These are the objects that the users can set for load observation:

Circuit groups TL

Control units TL

Computer units TL

Message bus TL

2. Start the load observation.

Command group TL

3. Stop the load observation.

Command group TL



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Field reporting

1. Activate field reporting.

Reporting on subscriber facilities TU

Reporting on restarts TU

Reporting on service level data TU

2. Print intermediate report.

Command group TU

3. Stop field reporting.

Command group TU

GSM tracing

1. Activate subscriber tracing.

In the MSC/VLR MW

In the HLR MT

2. Deactivate subscriber tracing.

In the MSC/VLR MW

In the HLR MT

In MGW

Traffic measurements:

- Create the Object List, Start, End T2

PCM Measurement 1. ET Supervision Handling YE

2. PCM Statistics: Measurement and Handling YM


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2.1 User interface

Figure 2 presents the MML commands used to create, start or stop the measurements.

DX 200 MSC01 2008-02-13 14:53:32

TRAFFIC ADMINISTRATION

? ..... DISPLAY MENU

2 ..... MEASUREMENT HANDLING

B ..... SUPERVISION OF CIRCUIT GROUP AVAILABILITY

C ..... SUPERVISION OF DISTURBANCES

D ..... DESTINATION OBJECT LISTS

E ..... SUPERVISION OF CIRCUIT SEIZURE

F ..... ANNOUNCEMENT OBJECT LISTS

G ..... CIRCUIT GROUP OBJECT LISTS

K ..... CELL OBJECT LISTS

L ..... LOAD OBSERVATION

M ..... TRAFFIC MEASUREMENT

N ..... CONTROL UNIT OBJECT LISTS

O ..... TRAFFIC OBSERVATION

P ..... GSM MEASUREMENT HANDLING

R ..... TRAFFIC CATEGORY OBJECT LISTS

T ..... SUPERVISION OF CIRCUIT SEIZURE TIMES

U ..... FIELD REPORTING

W ..... FIELD REPORTING OF ROUTING COMPONENTS

Z; .... RETURN TO MAIN LEVEL

Figure 2. Traffic administration command groups



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3 Traffic Measurements The normal sequence when starting a traffic measurement:

3. Define the measurement object to the appropriate object list.

4. Create the traffic measurement, including name, object list number etc.

5. Check the working states of the I/O-devices and the connections of the logical files.

6. Start the traffic measurement.

Exercise

7. Define the objects to the object list. Create the following object lists:

Circuit group

Command: ___________________________________________

Cell

Command: ___________________________________________

Destination

Command: ___________________________________________

Control unit

Command: ___________________________________________

8. Create the traffic measurements using the object lists you created in the previous exercise (define the output delays with a one minute interval).

Circuit group


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Command: ___________________________________________

Cell

Command: ___________________________________________

Destination

Command: ___________________________________________

Control unit

Command: ___________________________________________

9. Which logical file does your measurement use?

Circuit group

________________________________________________

Cell

________________________________________________

Destination

________________________________________________

Control unit

________________________________________________

10. Check if the logical file is connected to your PC. If not, connect it.

Circuit group

Command: ___________________________________________

Cell

Command: ___________________________________________

Destination

Command: ___________________________________________

Control unit

Command: ___________________________________________



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11. Start the traffic measurements.

Circuit group

Command: ___________________________________________

Cell

Command: ___________________________________________

Destination

Command: ___________________________________________

Control unit.

Command: ___________________________________________

12. Generate calls during the measurement interval and examine the reports.

13. Collect the report and analyse it together with your trainer.

_____________________________________________________

_____________________________________________________

_____________________________________________________

14. Restore the original situation.

Stop all measurements

Stop data service unit measurement

Delete all measurements

Remove measurement objects from object list

Command:

________________________________________________

________________________________________________

________________________________________________

________________________________________________


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4 Traffic Observations Set the following traffic observations ON:

Circuit observation

Failed calls.


Circuit observation

_____________________________________________________

Failed calls

_____________________________________________________

16. Check that the logical files are connected to your PC. If not, connect them.

Circuit group

Command: _________________________________________________

Cell

Command: _________________________________________________

17. Set circuit observations on (hint: select circuits of BSC(s)

Circuit group).

Commands: ________________________________________________

18. Make a call to any mobile subscriber number.


_____________________________________________________



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20. Reset circuit observation.

Command: _________________________________________________

21. Set failed calls observation on.

Command: _________________________________________________

22. Make a call to a non-existing PSTN number.


_____________________________________________________

_____________________________________________________

24. Reset failed calls observation.

Command: _________________________________________________


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5 GSM Measurements The normal sequence when starting a GSM measurement is:

Create the GSM measurement including measurement type, name, measurement time etc.

Check the working states of the I/O-devices and the connections of the logical files.

Start the GSM measurement.


VLR measurement

_____________________________________________________

HLR measurement

_____________________________________________________

AC measurement

_____________________________________________________

26. Check if the logical files are connected to your PC. If not, connect them.

VLR measurement

Command: _________________________________________________

HLR measurement (hint: logical file must be connected to the HLR).

Command: _________________________________________________

AC measurement (hint: logical file must be connected to the HLR).



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Command: _________________________________________________

27. Create the VLR measurement in the MSC (giving the output interval every 15 minutes).

Command: _________________________________________________

28. Start the VLR measurement.

Command: _________________________________________________

29. Create the HLR measurement in the HLR (giving the output interval every 15 minutes).

Command: _________________________________________________

30. Start the HLR measurement in the HLR.

Command: _________________________________________________

31. Create the AC measurement in the HLR (giving the output interval every 15 minutes).

Command: _________________________________________________

32. Start the AC measurement.

Command: _________________________________________________

33. Generate calls and location updates during the measurement interval and examine the reports together with your trainer.

34. Restore the original situation.

35. Stop the VLR, HLR and AC measurements. (Note: You can not remove the measurements.)


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Commands: ________________________________________________

_____________________________________________________

_____________________________________________________



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6 Field Reporting 1. Which logical file does your reporting use?

Subscriber facilities usage time reporting.

_____________________________________________________

Trafficability performance of the exchange.

_____________________________________________________

2. Start the reporting on subscriber facilities.

Commands: ________________________________________________

_____________________________________________________

3. Print an intermediate report on the use of all subscriber facilities. (Intermediate report is a current report within a measurement period.)

Commands: ________________________________________________

_____________________________________________________

4. Start the Trafficability performance of the exchange (if it is not started yet).

Commands: ________________________________________________

5. Output the Trafficability performance of the exchange.

Clear codes of all calls

Commands: ________________________________________________

Signalling specific clear codes


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Commands: ________________________________________________



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7 GSM Trace

1. Check which BSSAP version is used towards the different BSCs (hint: use command group ED).

Command: _________________________________________________

2. Check if tracing is switched on in this BSSAP version (hint: use command group ED).

Command: _________________________________________________

3. Check the GSM tracing related parameter in the MSC (hint: use command group WO, parameter class 9, parameter 36).

Command: _________________________________________________

4. Which logical files are used in GSM tracing in the MSC and HLR, what is the purpose of the different logical files and to where are they connected?

_____________________________________________________

_____________________________________________________

_____________________________________________________

_____________________________________________________

5. Start GSM tracing for your subscriber in the MSC.

Command: _________________________________________________


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6. Make some calls and examine the report.

7. Stop call tracing again for your subscriber.

Command: _________________________________________________

8. Start GSM tracing for your subscriber in the HLR.

Command: _________________________________________________

9. Make some calls and examine the report.

10. Stop call tracing again for your subscriber.

Command: _________________________________________________

11. What is the difference between call tracing in the MSC and call tracing in the HLR?

_____________________________________________________

_____________________________________________________



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8 MGW Measurements When you want to start a measurement, you first create the object list. After creating the object list, you can use the T2I command to check the objects.

When creating a measurement, you can add a maximum of 10 objects to the object list. If you want to add more objects, you have to add them with the T2H command. You can create several different object lists to the same measurement type.

When you create an object list, notice that the number of possible object identifiers varies in different measurements. The number of available object IDs for the measurements (and the measurement identifiers) are listed in the following table:

Table 1. Object type for measurement groups

Measurement Object type Measurement ID

Number of object IDs available

ID1 ID2

IMA IMA group 202 1 IMA group id -

Interface-specific TC Interface 200 2 Interface type interface index

STM-1 interface SET-SDH 201 2 Interface type interface index

ATM layer performance Computer unit

210 2 Unit type unit index

AAL2 signalling protocol at NNI

Signalling point

221 2 Signalling point code

network code

AAL5 protocol in DMX Computer unit


AAL5 protocol in Chorus Computer unit


Unit load Computer unit



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Availability Performance Meas

Computer unit


DSP Performance 266

Signalling Transcoding Meas

283

Multiparty Call Meas 284

Connection Meas 285

TrFO and TFO Meas 288

RTP/RTCP Protocol Meas

286

Data Call Meas 289

Announcement Meas 290 2 Unit type unit index

8.1 Interface-specific TC measurement

1. Check the counters provided by the interface-specific TC measurement.

Index Counter name Explanation Example

0 DISC_CELLS Discarded cells 13

1 ERR_CELLS Errored cells 13

2 ING_CELLS Ingress cells 12

3 ENG_CELLS Egress cells 12

2. Create an object list for the interface-specific TC measurement (200) for SET-0 and SET-1 (or any available SETs) as objects.

Command:

3. Start the measurement immediately with a 15 minutes' result accumulation period. The reports have to be printed out between 08.00 - 17.00 and 20.30 - 22.45.

Note The length of the measurement name is eight characters, and it is in the



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following form: XMEASYYY. The first character (X) in the measurement name shows the state of the measurement (P=passive, A=active). The middle part of the name (MEAS) is always the same. The end of the measurement name (YYY) shows the measurement ID. It is numeric, between 001 and 999.

Command:

4. Interrogate the schedule of the interface-specific TC measurement (200).

Command:


6. Check the report with NE Measurement Explorer application in NEMU and analyse it together with your trainer. (Refer to Appendix to see how to check the result from a NEMU.)

7. Stop the interface-specific TC measurement (200).

Command:

8. Delete an object list for the interface-specific TC measurement (200).

Command:

8.2 ATM layer measurement

1. Create an object list for the ATM layer measurement (210) for a computer unit. (Ask your trainer about an assigned computer unit.)

Command:

2. Start the ATM layer measurement (210) immediately with a 15 minutes' result accumulation period. The reports have to be printed out between 08.00 - 17.00 and 20.30 - 22.45.


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Command:

3. Interrogate the schedule of a passive ATM layer measurement (210).

Command:


5. Check the report with the NE Measurement Explorer application in NEMU and analyse it together with your trainer. (Refer to Appendix to see how to check the result from a NEMU.)

6. Stop the ATM layer measurement (210).

Command:

7. Delete an object list for the measurement (210).

Command:

8.3 Unit load measurement

1. Create an object list for the unit load measurement (250) for a computer unit. (Ask your trainer about an assigned computer unit.)

Command:

2. Start the unit load measurement (250) immediately with a 15 minutes' result accumulation period. The reports have to be printed out between 08.00 - 17.00 and 20.30 - 22.45.

Command:

3. Interrogate the schedule of a passive ATM layer measurement (210).

Command:



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5. Stop the unit load measurement (250).

Command:

6. Delete an object list for the measurement (250).

Command:


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9 PCM Statistic Measurement

9.1 PCM statistics permanent measurement

1. Output the measurement period parameters for both permanent and temporary measurements.

Command:

2. Output all disturbances of a trunk circuit connected to a given PET/ET.

Command:

9.2 PCM statistics temporary measurement

3. Which logical file is used for a temporary measurement?

4. Check that the logical files are connected to a required I/O device such as your PC, VDU. If not, connect them.

Command:

5. Output the limits for the statistics counters of short disturbances in all ET units.

Command:



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6. Modify the statistics counters limits of short disturbances in a given ET to values 10, 50, 80.

Command:

7. Start a temporary measurement on a trunk circuit connected to the given ET. The measurement lasts 10 minutes.

Command:

8. Output measurement period parameters for both permanent and temporary measurements.

Command:

9. After the measurement period, collect the report and analyse it together with your trainer.

10. After the measurement period the temporary measurement is cancelled automatically. However, the user can cancel the temporary measurement manually. Find the command to cancel the temporary measurement.

Command:

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13 Cn3401een30gln1a Traffic Administration Exercise