01 05 board no

6 No. of Virtual Media Gateway

About This Chapter

6.1 H.248 Application StatisticsThis task is used to measure H.248 messages, transactions, and commands transmitted betweenthe CMU and the MGC. The measure object is the VMGW.

6.2 Context Management StatisticsThis task is used to measure context handling conditions of the MGW under the control of theMGC. The measure object is the VMGW.

6.3 Number of Terminations Occupied by ContextThis task is used to measure termination occupation in the MGW under the control of the MGC.The terminations include IP terminations, ATM terminations, and TDM terminations. Themeasure object is the VMGW.

6.4 Number of Resources Occupied by Context of the CMU BoardThis task is used to measure the resource usage of the MGW under the control of the MGC. Theresources refer to the channels used for codec conversion, rate adaptation, announcement, audiomixing, echo cancellation, and channels used by data services. These channels include thetranscoder (TC), echo cancellation (EC), and audio mixing resources. The measure object is theVMGW.

6.5 Conference Call StatisticsThis task is used to count successful conference calls. The measure object is the VMGW.

6.6 Voice Call StatisticsThis task is used to measure resource features of the MGW. The measure object is the VMGW.

UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway

Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-1

6.1 H.248 Application StatisticsThis task is used to measure H.248 messages, transactions, and commands transmitted betweenthe CMU and the MGC. The measure object is the VMGW.

6.1.1 Number of Received Message

6.1.2 Number of Sent Message

6.1.3 Number of Received Trans Request

6.1.4 Number of Sent Trans Request

6.1.5 Number of Received Trans Response

6.1.6 Number of Sent Trans Response

6.1.7 Number of Received Action Request

6.1.8 Number of Sent Action Request

6.1.9 Number of Received Action Response

6.1.10 Number of Sent Action Response

6.1.11 Number of Received SERVICECHANGE Request

6.1.12 Number of Received SERVICECHANGE Response

6.1.13 Number of Sent SERVICECHANGE Request

6.1.14 Number of Sent SERVICECHANGE Response

6.1.15 Number of Sent NOTIFY Request

6.1.16 Number of Received NOTIFY Response

6.1.17 Number of Received ADD Request

6.1.18 Number of Sent ADD Response

6.1.19 Number of Received SUBTRACT Request

6.1.20 Number of Sent SUBTRACT Response

6.1.21 Number of Received MOVE Request

6.1.22 Number of Sent MOVE Response

6.1.23 Number of Received MODIFY Request

6.1.24 Number of Sent MODIFY Response

6.1.25 Number of Received AUDITVALUE Request

6.1.26 Number of Sent AUDITVALUE Response

6.1.27 Number of Received AUDITCAPABILITY Request

6.1.28 Number of Sent AUDITCAPABILITY Response

6.1.29 Number of Received H.248 Bytes

6 No. of Virtual Media GatewayUMG8900

Performance Metrics Reference

6-2 Huawei Technologies Proprietary Issue 01 (2007-07-26)

6.1.30 Number of Sent H.248 Bytes

6.1.31 Number of ADD Request Err Process Times

6.1.32 Number of SUBTRACT Request Err Process Times

6.1.33 Number of MODIFY Request Err Process Times

6.1.34 Number of MOVE Request Err Process Times

6.1.35 Number of AUDITVALUE Request Err Process Times

6.1.36 Number of SERVICECHANGE Request Err Process Times

6.1.37 Number of Received NOTIFY Err Process Times

6.1.38 Number of Received SERVICECHANGE Err Process Times

6.1.39 Number of AUDITCAPABILITY Req Err Process Times

6.1.40 Number of Sent Error Command

6.1.41 Number of Sent Error NOTIFY Command

6.1.42 Number of Sent Error SERVICECHANGE Command

6.1.1 Number of Received Message

DescriptionThis item refers to the number of H.248 messages that are received by a specific VMGW fromthe MGC. The item is counted by the application layer of the CMU, after the H.248 protocolstack successfully decodes the received messages.

UnitNone

Measurement PointThe item is measured after the H.248 protocol stack successfully decodes the messages receivedby the MGW from the MGC. Refer to Figure 6-1.

Figure 6-1 Number of received message

MGC

A

MGW

H.248 MSG

H.248 MSG



Measurement TypesDuration sampling type

FormulaResult = Total number of received messages

6.1.2 Number of Sent Message

DescriptionThis item refers to the number of H.248 messages sent by the MGW to the MGC. The item iscounted by the application layer of the CMU, before the H.248 protocol stack encodes themessages.

UnitNone

Measurement PointThe item is measured when the MGW sends messages to the MGC. Refer to Figure 6-2.

Figure 6-2 Number of sent message

MGC

A

MGW

H.248 MSG

H.248 MSG


FormulaResult = Total number of sent messages

6.1.3 Number of Received Trans Request

DescriptionThis item refers to the number of transactions contained in H.248 messages that are received bythe specific VMGW from the MGC. The item is counted by the application layer of the CMU,after the H.248 protocol stack successfully decodes the messages.




Unit

None

Measurement Point

The item is measured when the MGC sends requests to the MGW. Refer to Figure 6-3.

Figure 6-3 Number of received trans request

MGC

PPU

H.248 MSG REQ

CMUH.248PS

H.248 MSG RESP

A

MSG -->Transation1 Transation2

...

MSG <-- Transation1 Transation2

...

MGW

Measurement Types

Duration sampling type

FormulaResult = Total number of received transaction requests

6.1.4 Number of Sent Trans Request

Description

This item refers to the number of transactions contained in the H.248 messages sent by the MGWto the MGC. The item is counted by the application layer of the CMU, before the H.248 protocolstack encodes the messages.

Unit

None

Measurement Point

The item is measured when the MGW sends requests to the MGC. Refer to Figure 6-4.



Figure 6-4 Number of sent trans request

H.248 MSG REQ

H.248 MSG RESP

A

-->Transation1 Transation2...

<-- Transation1 Transation2

...

MGC

PPU CMUH.248PS

MGW

MSG

MSG


FormulaResult = Total number of sent transaction requests

6.1.5 Number of Received Trans Response

DescriptionThis item refers to the number of transactions contained in H.248 response messages that arereceived by the specific VMGW from the MGC. The item is counted by the application layerof the CMU, after the H.248 protocol stack successfully decodes the messages.

UnitNone

Measurement PointThe item is measured when the MGW receives transaction responses from the MGC. Refer toFigure 6-5.




Figure 6-5 Number of received trans response

MGC

PPU

H.248 MSG REQ

CMUH.248PS

H.248 MSG RESP

A


...


...

MGW


FormulaResult = Total number of received transaction responses

6.1.6 Number of Sent Trans Response

DescriptionThis item refers to the number of transactions contained in the H.248 response messages sentby the MGW to the MGC. The item is counted by the application layer of the CMU, before theH.248 protocol stack encodes the messages.

UnitNone

Measurement PointThe item is measured when the MGW sends transaction responses to the MGC. Refer to Figure6-6.



Figure 6-6 Number of sent trans response

MGC

PPU

H.248 MSG REQ

CMUH.248PS

H.248 MSG RESP

A


...


...

MGW


FormulaResult = Total number of sent transaction responses

6.1.7 Number of Received Action Request

DescriptionAccording to H.248, one message may contain several transactions and one transaction maycontain several actions. This item refers to the number of action requests contained in H.248request messages that are received by the specific VMGW from the MGC. The item is countedby the application layer of the CMU, after the H.248 protocol stack successfully decodes thereceived messages.

UnitNone

Measurement PointThe item is measured when the MGW receives requests from the MGC. Refer to Figure 6-7.




Figure 6-7 Number of received action request

MGC

PPU

H.248 MSG REQ

CMUH.248PS

H.248 MSG RESP

A


...


...

MGW


FormulaResult = Total number of received action requests

6.1.8 Number of Sent Action Request

DescriptionAccording to H.248, one message may contain several transactions and one transaction maycontain several actions. This item refers to the number of actions contained in the H.248 requestmessages sent by the MGW to the MGC. The item is counted by the application layer of theCMU, before the H.248 protocol stack encodes the messages.

UnitNone

Measurement PointThe item is measured when the MGW sends requests to the MGC. Refer to Figure 6-8.



Figure 6-8 Number of sent action request

MGC

PPU

H.248 MSG REQ

CMUH.248PS

H.248 MSG RESP

A

MGW

<--Transation1...

<-Action1<-Action2

...

MSG

-->Transation1 ->Action1->Action2

......MSG


FormulaResult = Total number of sent action requests

6.1.9 Number of Received Action Response

DescriptionAccording to H.248, one message may contain several transactions and one transaction maycontain several actions. This item refers to the number of actions contained in H.248 responsemessages that are received by the specific VMGW from the MGC. The item is counted by theapplication layer of the CMU, after the H.248 protocol stack successfully decodes the responsemessages.

UnitNone

Measurement PointThe item is measured when the MGW receives responses from the MGC. Refer to Figure 6-9.




Figure 6-9 Number of received action response

MGC

PPU

H.248 MSG REQ

CMUH.248PS

H.248 MSG RESP

A

MGW

<--Transation1...

<-Action1<-Action2

...

MSG

-->Transation1 ->Action1->Action2

......MSG


FormulaResult = Total number of received action responses

6.1.10 Number of Sent Action Response

DescriptionAccording to H.248, one message may contain several transactions and one transaction maycontain several actions. This item refers to the number of actions contained in the H.248 responsemessages sent by the MGW to the MGC. The item is counted by the application layer of theCMU, before the H.248 protocol stack encodes the messages.

UnitNone

Measurement PointThe item is measured when the MGW sends responses to the MGC. Refer to Figure 6-10.



Figure 6-10 Number of sent action response

MGC

PPU

H.248 MSG REQ

CMUH.248PS

H.248 MSG RESP

A

MGW

-->Transation1...

->Action1->Action2...

MSG

<--Transation1 <-Action1<-Action2...

MSG...


FormulaResult = Total number of sent action responses

6.1.11 Number of Received SERVICECHANGE Request

DescriptionThe SERVICECHANGE command in the request is a service change command. After receivingthis command, the MGW performs service change as specified in the request. The change canbe that the MGC requires the MGW to exit from the service or to register with another MGC.This item refers to the number of H.248 SERVICECHANGE command requests that arereceived by the VMGW from the MGC.

UnitNone

Measurement PointThe item is measured when the MGW receives SERVICECHANGE messages from the MGC.The MGC sends this request to the MGW for service change of the MGW. Refer to Figure6-11.




Figure 6-11 Number of received SERVICECHANGE request

MGC

A

MGW

SERVICE CHANGE REQ

SERVICE CHANGE RESP


FormulaResult = Total number of received SERVICECHANGE requests

6.1.12 Number of Received SERVICECHANGE Response

Descriptionl The MGW registers with, deregisters with, or reports the status changes of terminations to

the MGC by sending the SERVICECHANGE commands.l This item refers to the number of responses to the H.248 SERVICECHANGE command,

which are returned from the MGC to the VMGW. The item is counted by the applicationlayer of the CMU.

UnitNone

Measurement PointThis task is measured when the MGW receives SERVICECHANGE responses from the MGC.The MGC sends this response after it processes the service change request or termination statuschange reported by the MGW. Refer to Figure 6-12.

Figure 6-12 Number of received SERVICECHANGE response

MGC

A

MGW

SERVICE CHANGE REQ

SERVICE CHANGE RESP



Measurement Types


FormulaResult = Total number of received SERVICECHANGE responses

6.1.13 Number of Sent SERVICECHANGE Request

Descriptionl The MGW registers with, deregisters with, or reports the status changes of terminations to

the MGC by sending the SERVICECHANGE commands.

l This item refers to the number of H.248 SERVICECHANGE requests that are sent by theVMGW to the MGC.

Unit

None

Measurement Point

The item is measured when the MGW sends SERVICECHANGE requests to the MGC. TheMGW sends this request when its status or the status of the terminations changes. Refer to Figure6-13.

Figure 6-13 Number of sent SERVICECHANGE request

MGC

A

MGW

SERVICE CHANGE REQ

SERVICE CHANGE RESP

Measurement Types


FormulaResult = Total number of sent SERVICECHANGE requests




6.1.14 Number of Sent SERVICECHANGE Response

Descriptionl The SERVICECHANGE command is a service change command. After receiving this

command, the MGW performs service change as specified in the request. The change canbe that the MGC requires the MGW to exit from the service or to register with anotherMGC. The MGW sends the response to the MGC after processing the request.

l This item refers to the number of responses to the H.248 SERVICECHANGE command,which are sent by the VMGW to the MGC.

Unit

None

Measurement Point

The item is measured when the MGW sends SERVICECHANGE responses to the MGC. TheMGW sends the response to the MGC after processing the specific service change. Refer toFigure 6-14.

Figure 6-14 Number of sent SERVICECHANGE response

MGC

A

MGW

SERVICE CHANGE REQ

SERVICE CHANGE RESP

Measurement Types


FormulaResult = Total number of sent SERVICECHANGE responses

6.1.15 Number of Sent NOTIFY Request

Descriptionl This item refers to the number of H.248 NOTIFY requests that are sent by the VMGW to

the MGC. The item is counted by the application layer of the CMU.l The MGW reports the events such as the dialing event and detection of fax tone to the MGC

by sending the NOTIFY requests.



Unit

None

Measurement Point

The item is measured when the MGW sends NOTIFY requests to the MGC. The MGW informsthe MGC of events through the NOTIFY requests. Refer to Figure 6-15.

Figure 6-15 Number of sent NOTIFY request

MGC

A

MGW

NOTIFY REQ

NOTIFY RESP

Measurement Types


FormulaRequest = Total number of sent NOTIFY requests

6.1.16 Number of Received NOTIFY Response

Descriptionl This item refers to the number of responses to the H.248 NOTIFY command, which are

received by the VMGW from the MGC. The item is counted by the application layer of theCMU.

l After the MGW sends the NOTIFY command to the MGC to report events, the MGCresponds to the NOTIFY command.

Unit

None

Measurement Point

The item is measured when the MGW receives NOTIFY responses from the MGC. The MGCsends the response to the MGW after processing the reported events. Refer to Figure 6-16.




Figure 6-16 Number of received NOTIFY response

MGC

A

MGW

NOTIFY REQ

NOTIFY RESP


FormulaResult = Total number of received NOTIFY responses

6.1.17 Number of Received ADD Request

Descriptionl This item refers to the number of H.248 ADD requests that are received by the VMGW

from the MGC. The item is counted by the application layer of the CMU.l Before call establishment, the MGC requires the MGW to allocate terminations to the calls

by sending the ADD command.

UnitNone

Measurement PointThe item is measured when the MGW receives ADD requests from the MGC. The MGWreceives this request during call establishment. Refer to Figure 6-17.

Figure 6-17 Number of received ADD request

MGC

A

MGW

ADD REQ

ADD RESP




FormulaResult = Total number of received ADD requests

6.1.18 Number of Sent ADD Response

DescriptionThis item refers to the number of responses to the H.248 ADD command, which are returnedfrom the VMGW to the MGC. The item is counted by the application layer of the CMU. Duringcall establishment, the MGC requires the MGW to allocate terminations by sending the ADDcommand. The MGW returns the responses to the MGC after processing the requests.

UnitNone

Measurement PointThe item is measured when the MGW sends ADD responses to the MGC. The MGW sends theresponse to the MGC after allocating the terminations. Refer to Figure 6-18.

Figure 6-18 Number of sent ADD response

MGC

A

MGW

ADD REQ

ADD RESP


FormulaResult = Total number of sent ADD responses




6.1.19 Number of Received SUBTRACT Request

Descriptionl This item refers to the number of H.248 SUBTRACT requests that are received by the

VMGW from the MGC. The item is counted by the application layer of the CMU.l After the call is released, the MGC requires the MGW to reclaim the resources by sending

the SUBTRACT requests.

UnitNone

Measurement PointThe item is measured when the MGW receives SUBTRACT requests from the MGC. The MGCsends the request to the MGW, requiring the MGW to release the call. Refer to Figure 6-19.

Figure 6-19 Number of received SUBTRACT request

MGC

A

MGW

SUBTRACT REQ

SUBTRACT RESP


FormulaResult = Total number of received SUBTRACT requests

6.1.20 Number of Sent SUBTRACT Response

Descriptionl This item refers to the number of responses to the H.248 SUBTRAC command, which are

returned from the VMGW to the MGC. The item is counted by the application layer of theCMU.

l After the call is released, the MGC sends SUBTRACT requests to the MGW, and then theMGW returns the responses containing the statistic information such as traffic.

UnitNone



Measurement PointThe item is measured when the MGW sends SUBTRACT responses to the MGC. The MGWsends the response after releasing the call. Refer to Figure 6-20.

Figure 6-20 Number of sent SUBTRACT response

MGC

A

MGW

SUBTRACT REQ

SUBTRACT RESP


FormulaResult = Total number of sent SUBTRACT responses

6.1.21 Number of Received MOVE Request

Descriptionl This item refers to the number of H.248 MOVE requests that are received by the VMGW

from the MGC. The item is counted by the application layer of the CMU.l The MGC generally sends the MOVE requests to the MGW when a subscriber moves from

one office to another after a call is established.

UnitNone

Measurement PointThe item is measured when the MGW receives MOVE requests from the MGC. The MGWreceives the request when switchover occurs. Refer to Figure 6-21.




Figure 6-21 Number of received MOVE request

MGC

A

MGW

MOVE REQ

MOVE RESP


FormulaResult = Total number of received MOVE requests

6.1.22 Number of Sent MOVE Response

Descriptionl This item refers to the number of responses to the H.248 MOVE command, which are


l The MGC generally sends the MOVE requests to the MGW when a subscriber moves fromone office to another after a call is established. The MGW returns the responses to the MGCafter processing the requests.

UnitNone

Measurement PointThe item is measured when the MGW sends MOVE responses to the MGC. The MGW sendsthe response to the MGC after processing the switchover request. Refer to Figure 6-22.

Figure 6-22 Number of sent MOVE response

MGC

A

MGW

MOVE REQ

MOVE RESP



Measurement Types


FormulaResult = Total number of sent MOVE responses

6.1.23 Number of Received MODIFY Request

Descriptionl This item refers to the number of H.248 MODIFY requests that are received by the VMGW

from the MGC. The item is counted by the application layer of the CMU.

l During call connection, the MGC sends the MODIFY requests to modify the attributes ofterminations, such as playing announcement to or collecting digits of a termination andreporting information of the peer termination to the local termination.

Unit

None

Measurement Point

The item is measured when the MGW receives MODIFY requests from the MGC. The MGCsends the request to modify the attributes of a termination. Refer to Figure 6-23.

Figure 6-23 Number of received MODIFY request

MGC

A

MGW

MODIFY REQ

MODIFY RESP

Measurement Types


FormulaResult = Total number of received MODIFY requests




6.1.24 Number of Sent MODIFY Response

Descriptionl This item refers to the number of responses to the H.248 MODIFY command, which are


l During call connection, the MGC sends the MODIFY requests to modify the attributes ofterminations, such as announcement to or collecting digits of a termination and reportinginformation of the peer termination to the local termination. The MGW returns the responsecontaining the processing result to the MGC.

Unit

None

Measurement Point

The item is measured when the MGW sends MODIFY responses to the MGC. The MGW sendsthe response after modifying the attributes of the termination. Refer to Figure 6-24.

Figure 6-24 Number of sent MODIFY response

MGC

A

MGW

MODIFY REQ

MODIFY RESP

Measurement Types


FormulaResult = Total number of sent MODIFY responses

6.1.25 Number of Received AUDITVALUE Request

Descriptionl This item refers to the number of H.248 AUDITVALUE requests that are received by the

VMGW from the MGC. The item is counted by the application layer of the CMU.l The MGC obtains the status and statistic information of the MGW and terminations by

sending the AUDITVALUE requests to the MGW.



Unit

None

Measurement Point

The item is measured when the MGW receives AUDITVALUE requests from the MGC. TheMGC sends the request to obtain the information of the MGW or terminations. Refer to Figure6-25.

Figure 6-25 Number of received AUDITVALUE request

MGC

A

MGW

AUDITVALUE REQ

AUDITVALUE RESP

Measurement Types


FormulaResult = Total number of received AUDITVALUE requests

6.1.26 Number of Sent AUDITVALUE Response

Descriptionl This item refers to the number of responses to the H.248 AUDITVALUE command, which

are returned from the VMGW to the MGC. The item is counted by the application layer ofthe CMU.

l The MGW reports the status and statistic information of itself and its terminations to theMGC by sending the AUDITVALUE responses.

Unit

None

Measurement Point

The item is measured when the MGW sends AUDITVALUE responses to the MGC. The MGWsends the response after processing the AUDITVALUE request. Refer to Figure 6-26.




Figure 6-26 Number of sent AUDITVALUE response

MGC

A

MGW

AUDITVALUE REQ

AUDITVALUE RESP


FormulaResult = Total number of sent AUDITVALUE responses

6.1.27 Number of Received AUDITCAPABILITY Request

Descriptionl This item refers to the number of H.248 AUDITCAPABILITY requests that are received

by the VMGW from the MGC. The item is counted by the application layer of the CMU.l The MGC obtains the events and signals supported by the terminations of the MGW by

sending the AUDITCAPABILITY requests to the MGW.

UnitNone

Measurement PointThe item is measured when the MGW receives AUDITCAPABILITY requests from the MGC.The MGC sends the request to obtain the capabilities of terminations of the MGW. Refer toFigure 6-27.

Figure 6-27 Number of received AUDITCAPABILITY request

MGC

A

MGW

AUDITCAPABILITY REQ

AUDITCAPABILITY RESP



Measurement Types


FormulaResult = Total number of received AUDITCAPABILITY requests

6.1.28 Number of Sent AUDITCAPABILITY Response

Descriptionl This item refers to the number of responses to the H.248 AUDITCAPABILITY command,

which are returned from the VMGW to the MGC. The item is counted by the applicationlayer of the CMU.

l The MGW reports the events and signals supported by terminations of the MGW to theMGC by sending the AUDITCAPABILITY responses.

Unit

None

Measurement Point

The item is measured when the MGW sends AUDITCAPABILITY responses to the MGC. TheMGW sends the response after processing the AUDITCAPABILITY request. Refer to Figure6-28.

Figure 6-28 Number of sent AUDITCAPABILITY response

MGC

A

MGW

AUDITCAPABILITY REQ


Measurement Types


FormulaResult = Total number of sent AUDITCAPABILITY responses




6.1.29 Number of Received H.248 Bytes

Descriptionl This item refers to the number of H.248 bytes received by the VMGW from the MGC. The

item is counted by the application layer of the CMU.l This item refers to the number of bytes including the requests and responses in all H.248

messages received by the MGW.

UnitByte

Measurement PointThe item is measured when the MGW receives H.248 messages sent by the MGC. Refer toFigure 6-29.

Figure 6-29 Number of received H.248 bytes

MGC

A

MGW

H.248 MSG

H.248 MSG


FormulaResult = Total number of received H.248 bytes

6.1.30 Number of Sent H.248 Bytes

Descriptionl This item refers to the number of H.248 bytes sent by the VMGW to the MGC. The item

is counted by the application layer of the CMU.l This item refers to the number of bytes in all H.248 messages including the requests and

responses sent by the MGW.

UnitByte



Measurement PointThe item is measured when the MGW sends H.248 messages to the MGC. Refer to Figure6-30.

Figure 6-30 Number of sent H.248 bytes

MGC

A

MGW

H.248 MSG

H.248 MSG


FormulaResult = Total number of sent H.248 bytes

6.1.31 Number of ADD Request Err Process Times

Descriptionl This item refers to the number of failures in processing the ADD requests. The item is

counted by the MGW.l During call establishment, the MGC requires the MGW to allocate terminations by sending

the ADD requests to the MGW. If the ADD requests are incorrect, the resources areinsufficient or the MGW fails to process the requests, the MGW returns error responses.

UnitNumber of times

Measurement PointThe item is measured when the MGW receives the ADD requests from the MGC. The value ofthis item is added when the ADD requests are incorrect or the MGW fails to process the requests.Refer to Figure 6-31.




Figure 6-31 Number of ADD request err process times

MGC

A

MGW

ADD REQ

ADD RESP


FormulaResult = Total number of ADD request processing failures in a measurement period

6.1.32 Number of SUBTRACT Request Err Process Times

Descriptionl This item refers to the number of failures in processing the SUBTRACT requests. The item

is counted by the MGW.l The MGC sends the SUBTRACT requests to the MGW after the call is released. If the

requests are incorrect or the MGW fails to process the requests, the MGW returns errorresponses.

UnitNumber of times

Measurement PointThe item is measured when the MGW receives the SUBTRACT requests from the MGC. Thevalue of this item is added when the SUBTRACT requests are incorrect or the MGW fails toprocess the requests. Refer to Figure 6-32.

Figure 6-32 Number of SUBTRACT request err process times

MGC

A

MGW

SUBTRACT REQ

SUBTRACT RESP



Measurement Types


FormulaResult = Total number of SUBTRACT request processing failures in a measurement period

6.1.33 Number of MODIFY Request Err Process Times

Description

This item refers to the number of failures in processing the MODIFY requests. The item iscounted by the MGW.

The MGC requires the MGW to modify the information of terminations by sending the MODIFYrequests to the MGW. If the requests are incorrect or the MGW fails to process the requests, theMGW returns the error responses.

Unit

Number of times

Measurement Point

The item is measured when the MGW receives the MODIFY requests from the MGC. The valueof this item is added when the MODIFY requests are incorrect or the MGW fails to process therequests. Refer to Figure 6-33.

Figure 6-33 Number of MODIFY request err process times

MGC

A

MGW

MODIFY REQ

MODIFY RESP

Measurement Types


FormulaResult = Total number of MODIFY request processing failures in a measurement period




6.1.34 Number of MOVE Request Err Process Times

DescriptionThis item refers to the number of failures in processing the MOVE requests. The item is countedby the MGW.

After call connection, the MGC sends the MOVE requests to the MGW when a subscriber movesfrom one office to another. If the requests are incorrect or the MGW fails to process the requests,the MGW returns error responses.

UnitNumber of times

Measurement PointThe item is measured when the MGW receives the MOVE requests from the MGC. The valueof this item is added when the MOVE requests are incorrect or the MGW fails to process therequests. Refer to Figure 6-34.

Figure 6-34 Number of MOVE request err process times

MGC

A

MGW

MOVE REQ

MOVE RESP


FormulaResult = Total number of MOVE request processing failures in a measurement period

6.1.35 Number of AUDITVALUE Request Err Process Times

DescriptionThis item refers to the number of failures in processing the AUDITVALUE requests. The itemis counted by the MGW.

The MGC obtains information of the MGW or terminations through AUDITVALUE requests.If the requests are incorrect or the MGW fails to process the requests, the MGW returns errorresponses.



UnitNumber of times

Measurement PointThe item is measured when the MGW receives the AUDITVALUE requests from the MGC.The value of this item is added when the AUDITVALUE requests are incorrect or the MGWfails to process the requests. Refer to Figure 6-35.

Figure 6-35 Number of AUDITVALUE request err process times

MGC

A

MGW

AUDITVALUE REQ

AUDITVALUE RESP


FormulaResult = Total number of AUDITVALUE request processing failures in a measurement period

6.1.36 Number of SERVICECHANGE Request Err Process Times

DescriptionThis item refers to the number of failures in processing the SERVICECHANGE requests. Theitem is counted by the MGW.

The MGC requires the MGW to process service change by sending the SERVICECHANGErequests to the MGW. If the requests are incorrect or the MGW fails to process the requests, theMGW returns error responses.

UnitNumber of times

Measurement PointThe item is measured when the MGW processes SERVICECHANGE requests. The value ofthis item is added when the SERVICECHANG requests are incorrect or the MGW fails toprocess the requests. Refer to Figure 6-36.




Figure 6-36 Number of SERVICECHANGE request err process times

MGC

A

MGW

SERVICE CHANGE REQ

SERVICE CHANGE RESP


FormulaResult = Total number of SERVICECHANGE request processing failures in a measurementperiod

6.1.37 Number of Received NOTIFY Err Process Times

DescriptionThis item refers to the number of failures in processing the NOTIFY requests. The item is countedby the MGW.

The MGW reports events to the MGC by sending the NOTIFY requests. If the requests areincorrect or the MGC fails to process the requests, the MGC returns the error responses.

UnitNumber of times

Measurement PointThe item is measured when the MGW processes NOTIFY requests. The value of this item isadded when the NOTIFY requests sent by the MGW are incorrect or the MGC fails to processthe requests. Refer to Figure 6-37.



Figure 6-37 Number of received NOTIFY err process times

MGC

A

MGW

NOTIFY REQ

NOTIFY RESP


FormulaResult = Total number of NOTIFY request processing failures in a measurement period

6.1.38 Number of Received SERVICECHANGE Err Process Times

DescriptionThis item refers to the number of failures in processing the SERVICECHANGE requests. Theitem is counted by the MGW.

The MGW reports the service changes or status changes of terminations to the MGC by sendingthe SERVICECHANGE requests. If the requests are incorrect or the MGC fails to process therequests, the MGC returns the error responses.

UnitNumber of times

Measurement PointThe item is measured when the MGW processes SERVICECHANGE requests. The value ofthis item is added when the SERVICECHANG requests sent by the MGW are incorrect or theMGC fails to process the requests. Refer to Figure 6-38.




Figure 6-38 Number of received SERVICECHANGE err process times

MGC

A

MGW

SERVICE CHANGE REQ

SERVICE CHANGE RESP


FormulaResult = Total number of SERVICECHANGE request processing failures in a measurementperiod

6.1.39 Number of AUDITCAPABILITY Req Err Process Times

DescriptionThis item refers to the number of failures in processing the AUDITCAPABILITY requests. Theitem is counted by the MGW.

UnitNumber of times

Measurement PointThe item is measured when the MGW receives the AUDITCAPABILITY requests from theMGC. Refer to Figure 6-39.

Figure 6-39 Number of AUDITCAPABILITY req err process times

MGC

A

MGW

AUDITCAPABILITY REQ





FormulaResult = Total number of AUDITCAPABILITY request processing failures in a measurementperiod

6.1.40 Number of Sent Error Command

DescriptionThis item refers to the number of times the Mc interface sends error commands in a measurementperiod.

UnitNumber of times

Measurement PointWhen the Mc interface sends an error command, the value of this item is added by one. Referto the following figure.

Figure 6-40 Number of sent error command

MGC MGW

The Mc interface sends error commands.

Measurement TypesTraffic sampling type

FormulaNone

6.1.41 Number of Sent Error NOTIFY Command

DescriptionThis item refers to the number of times the Mc interface sends error NOTIFY commands in ameasurement period.




UnitNumber of times

Measurement PointWhen the Mc interface sends an error NOTIFY command, the value of this item is added byone. Refer to the following figure.

Figure 6-41 Number of sent error NOTIFY command

MGC MGW

The Mc interface sends error notifycommands of H.248 messages.


FormulaNone

6.1.42 Number of Sent Error SERVICECHANGE Command

DescriptionThis item refers to the number of times the Mc interface sends error SERVICECHANGEcommands in a measurement period.

UnitNumber of times

Measurement PointWhen the Mc interface sends an error SERVICECHANGE command, the value of this item isadded by one. Refer to the following figure.



Figure 6-42 Number of sent error SERVICECHANGE command

MGC MGW

The Mc interface sends error ServiceChangecommands of H.248 messages.


FormulaNone

6.2 Context Management StatisticsThis task is used to measure context handling conditions of the MGW under the control of theMGC. The measure object is the VMGW.

6.2.1 Total of Contexts Created Newly

6.2.2 Total of Successful Contexts Released

6.2.3 Total Duration

6.2.4 Peak of the Number of Context

6.2.5 Average of the Number of Context

6.2.6 Number of Context of TDM-TDM

6.2.7 Number of Context of IP-TDM

6.2.8 Number of Context of ATM-TDM

6.2.9 Number of Context of IP-IP

6.2.10 Number of Context of ATM-IP

6.2.11 Number of Context of ATM-ATM

6.2.12 Total MPTY Context Succeeded

6.2.13 Peak of the Number of MPTY Context

6.2.14 Average of the Number of MPTY Context

6.2.15 Number of Contexts with Call Loss

6.2.16 Number of Other Successfully Released Contexts




6.2.1 Total of Contexts Created Newly

DescriptionThis item refers to the total number of contexts established by the VMGW under the control ofthe MSC server.

UnitNone

Measurement PointThe item is measured when the VMGW generates a new context under the control of the MSCserver. The statistics can be used to estimate the status of call connections.

When the VMGW receives an H.248 ADD or MOVE message for a context, a new context iscreated. In this case, the value of this item is added. Refer to Figure 6-43.

Figure 6-43 Total of contexts created newly

MGC

A

MGW

ADD.REQ/MOVE.REQ(CONTEXT=$)

ADD.RESP/MOVE.RESP(CONTEXT=C1)

Measurement TypesAverage sampling type

FormulaResult = Total number of newly created contexts

6.2.2 Total of Successful Contexts Released

DescriptionThis item refers to the total number of contexts that are successfully released by the VMGWunder the control of the MSC server. Due to the limited VMGW resources, some contexts mayfail to be established. Thus, call establishment may fail.

UnitNone



Measurement Point

The item is measured when the VMGW releases a created context under the control of an MSCserver. The statistics can be used to estimate the status of call release.

When the VMGW deletes the last termination of session C1, C1 is deleted and a new context iscreated. In this case, the value of this item is added by one. Refer to Figure 6-44.

Figure 6-44 Total of successful contexts released

MGC

A

MGW

SUB.REQ(CONTEXT=C1)

SUB.RESP(CONTEXT=C1)

Measurement Types

Average sampling type

FormulaResult = Total number of successfully released contexts

6.2.3 Total Duration

Description

This item refers to the time length from the establishment to release of contexts.

Unit

Second

Measurement Point

The VMGW releases a created context under the control of an MSC server. The CMU countsthe duration occupied by the context when the context is released, and adds the duration to thevalue of this item. The statistics can be used to count the total duration of calls.

When the VMGW creates a context after receiving the ADD request from the MGC, the contextcreating time (point A in the following figure) is recorded. When the context is released, thetotal duration occupied by the context can be obtained. Refer to Figure 6-45.

The total duration refers to sum of duration of each context.




Figure 6-45 Total duration

MGC

B

MGW

SUB.REQ(C1)

SUB.RESP(C1)

...

ADD.REQ(C1)

ADD.RESP(C1)

A


FormulaResult = Total duration occupied by each context

6.2.4 Peak of the Number of Context

DescriptionThis item refers to the maximum number of contexts in a measurement period.

UnitNone

Measurement PointThe MGW generates or releases a context under the control of the MSC server. The CMU updatesthe number of contexts when generating or releasing a context. The MGW counts the maximumnumber of current contexts in the measurement period. The statistics can be used to estimate thestatus of the current calls.

Figure 6-46 Peak of the number of context

MAX Context Num

T

Context NUM



Measurement Types


FormulaResult = Maximum number of contexts in a measurement period

6.2.5 Average of the Number of Context

Description

This item refers to the average number of contexts in a measurement period.

Unit

None

Measurement Point

The VMGW generates or releases a context under the control of the MSC server. The CMUupdates the number of contexts when generating or releasing a context. The MGW counts theaverage number of current contexts in the measurement period. The statistics can be used toestimate the status of the current calls.

Figure 6-47 Average of the number of context

PerformanceManagement

SystemMGW

End of period 1

End of period 2

Create a task

Average number of contexts

Average number of contexts

Measurement Types


FormulaResult = Total number of contexts in a measurement period/Measure period




6.2.6 Number of Context of TDM-TDM

Description

This item refers to the number of contexts that the VMGW successfully establishes after addingtwo TDM terminations to the contexts under the control of the MSC server.

Unit

None

Measurement Point

The VMGW generates new contexts under the control of the MSC server. The number of TDM-TDM contexts is added by one when the CMU successfully creates a TDM-TDM context. Thestatistics can be used to estimate the status of TDM-TDM calls.

Figure 6-48 Number of context of TDM-TDM

MGC MGW

SUB.REQ

SUB.RESP

...

ADD.REQ(TDM)

ADD.RESPADD.REQ(TDM)

ADD.RESP... A

Measurement Types


FormulaResult = Total number of TDM-TDM contexts

6.2.7 Number of Context of IP-TDM

Description

This item refers to the number of contexts that the VMGW successfully establishes after addingan IP termination and a TDM termination to the contexts under the control of the MSC server.

Unit

None



Measurement PointThe VMGW generates new contexts under the control of the MSC server. The number of IP-TDM contexts is added by one when the CMU successfully creates and IP-TDM context. Thestatistics can be used to estimate the status of IP-TDM calls.

Figure 6-49 Number of context of IP-TDM

MGC MGW

SUB.REQ

SUB.RESP

...

ADD.REQ(TDM)

ADD.RESPADD.REQ(IP)

ADD.RESP... A


FormulaResult = Total number of IP-TDM contexts

6.2.8 Number of Context of ATM-TDM

DescriptionThis item refers to the number of contexts that the VMGW successfully establishes after addingan ATM termination and a TDM termination to the contexts under the control of the MSC server.

UnitNone

Measurement PointThe VMGW generates new contexts under the control of an MSC server. The number of ATM-TDM contexts is added by one when the CMU successfully creates an ATM-TDM context. Thestatistics can be used to estimate the status of ATM-TDM calls.




Figure 6-50 Number of context of ATM-TDM

MGC MGW

SUB.REQ

SUB.RESP

...

ADD.REQ(TDM)

ADD.RESPADD.REQ(ATM)

ADD.RESP... A


FormulaResult = Total number of ATM-TDM contexts

6.2.9 Number of Context of IP-IP

DescriptionThis item refers to the number of contexts that the VMGW successfully establishes after addingtwo IP terminations to the contexts under the control of the MSC server.

UnitNone

Measurement PointThe VMGW generates new contexts under the control of the MSC server. The number of IP-IPcontexts is added by one when the CMU successfully creates an IP-IP context. The statistics canbe used to estimate the status of IP-IP calls.

Figure 6-51 Number of context of IP-IP

MGC MGW

SUB.REQ

SUB.RESP

...

ADD.REQ(IP)

ADD.RESPADD.REQ(IP)

ADD.RESP... A




FormulaResult = Total number of IP-IP contexts

6.2.10 Number of Context of ATM-IP

DescriptionThis item refers to the number of contexts that the VMGW successfully establishes after addingan ATM termination and an IP termination to the contexts under the control of the MSC server.

UnitNone

Measurement PointThe VMGW generates new contexts under the control of the MSC server. The number of ATM-IP contexts is added by one when the CMU successfully creates an ATM-IP context. Thestatistics can be used to estimate the status of ATM-IP calls.

Figure 6-52 Number of context of ATM-IP

MGC MGW

SUB.REQ

SUB.RESP

...

ADD.REQ(IP)


ADD.RESP... A


FormulaResult = Total number of ATM-IP contexts

6.2.11 Number of Context of ATM-ATM

DescriptionThis item refers to the number of contexts that the VMGW successfully establishes after addingtwo ATM terminations to the contexts under the control of the MSC server.




Unit

None

Measurement Point

The VMGW generates new contexts under the control of the MSC server. The number of ATM-ATM contexts is added by one when the CMU successfully creates an ATM-ATM context. Thestatistics can be used to estimate the status of ATM-ATM calls.

Figure 6-53 Number of context of ATM-ATM

MGC MGW

SUB.REQ

SUB.RESP

...

ADD.REQ(ATM)


ADD.RESP... A

Measurement Types


FormulaResult = Total number of ATM-ATM contexts

6.2.12 Total MPTY Context Succeeded

Description

This item refers to the total number of multiparty service (MPTY) contexts that the VMGWsuccessfully establishes under the control of the MSC server. The MPTY service includes theMPTY call service and MPTY conference service. The MPTY context has audio mixingresources.

Unit

None

Measurement Point

The VMGW generates new contexts under the control of the MSC server. The number of MPTYcontexts is added by one when the CMU successfully creates an MPTY context. The statisticscan be used to estimate the status of MPTY calls.



Figure 6-54 Total MPTY context succeeded

MGC MGW

SUB.REQ

SUB.RESP

ADD.REQ

ADD.RESP

... A

ADD.REQ

ADD.RESPADD.REQ

ADD.RESP


FormulaResult = Total number of MPTY contexts

6.2.13 Peak of the Number of MPTY Context

DescriptionThis item refers to the maximum number of multiparty service (MPTY) contexts in ameasurement period.

UnitNone

Measurement PointThe VMGW generates or releases the context under the control of the MSC server. The CMUupdates the number of MPTY context when generating and releasing an MPTY context. TheMGW counts the average number of current MPTY contexts in the measurement period. Thestatistics can be used to estimate the status of the current MPTY calls.




Figure 6-55 Peak of the number of MPTY context

MAX Context Num

T

Mpty Context NUM


FormulaResult = Maximum number of MPTY contexts in a measurement period

6.2.14 Average of the Number of MPTY Context

DescriptionThis item refers to the average number of multiparty service (MPTY) contexts in a measurementperiod.

UnitNone

Measurement PointThe VMGW generates or releases the context under the control of the MSC server. The CMUupdates the number of MPTY contexts when generating and releasing an MPTY context. TheMGW counts the average number of MPTY contexts in the measurement period. The statisticscan be used to estimate the status of the current MPTY calls.



Figure 6-56 Average of the number of MPTY context


SystemMGW

End of period 1

End of period 2

Create a task

Average number of MPTY contexts

Average number of MPTY contexts


FormulaResult = Total number of MPTY contexts in a measurement period/Measure period (s)

6.2.15 Number of Contexts with Call Loss

DescriptionThis item refers to the number of contexts where the call establishment fails due to certainreasons, among the contexts generated by the VMGW under the control of the MGC.

UnitNone

Measurement PointThe VMGW generates contexts under the control of the MSC server. For contexts where thecall establishment fails due to certain reasons, the CMU releases these contexts and adds thenumber of contexts with call loss. The statistic can be used to estimate the call loss status.




Figure 6-57 Number of contexts with call loss

MGC MGW

SUB.REQ

SUB.RESP

ADD.REQ

ADD.RESP

...

A

Call loss isgenerated.


FormulaResult = Total number of contexts with call loss

6.2.16 Number of Other Successfully Released Contexts

DescriptionThis item refers to the total number of contexts, excluding the ATM-ATM, ATM-TDM, ATM-IP, TDM-TDM, TDM–IP, IP-IP, VIG and MPTY contexts, successfully established by theVMGW under the control of the MGC. This item refers to contexts with only one terminationand used for auditing.

UnitNone

Measurement PointThe VMGW generates contexts, excluding the ATM-ATM, ATM-TDM, ATM-IP, TDM-TDM,TDM–IP, IP-IP, VIG and MPTY contexts, under the control of the MSC server. The CMU addsthe number of successfully released contexts when releasing the contexts. The statistics can beused to count calls of which the contexts are not commonly used.



Figure 6-58 Number of other successfully released contexts

MGC MGW

SUB.REQ

SUB.RESP

ADD.REQ

ADD.RESP

...

A


FormulaResult = Total number of other successfully released contexts

6.3 Number of Terminations Occupied by ContextThis task is used to measure termination occupation in the MGW under the control of the MGC.The terminations include IP terminations, ATM terminations, and TDM terminations. Themeasure object is the VMGW.

6.3.1 Occupied Peak of IP Termination

6.3.2 Occupied Average of IP Termination

6.3.3 Occupied Peak of ATM Termination

6.3.4 Occupied Average of ATM Termination

6.3.5 Occupied Peak of TDM Termination

6.3.6 Occupied Average of TDM Termination

6.3.1 Occupied Peak of IP Termination

DescriptionThis item refers to the maximum number of occupied IP terminations generated by the VMGWunder the control of the MSC server in a measurement period.

UnitNone




Measurement PointThe VMGW adds and deletes terminations under the control of the MSC server. The CMUupdates the number of occupied IP terminations when IP terminations are added or deleted. TheMGW counts the maximum number of IP terminations in the measurement period. The statisticscan be used to estimate the usage of IP terminations.

Figure 6-59 Occupied peak of IP termination

MAX IP Term Num

T

IP TERM NUM


FormulaResult = Maximum number of occupied IP terminations in a measurement period

6.3.2 Occupied Average of IP Termination

DescriptionThis item refers to the average number of occupied IP terminations generated by the VMGWunder the control of the MSC server in a measurement period.

UnitNone

Measurement PointThe VMGW adds and deletes terminations under the control of the MSC server. The CMUupdates the number of occupied IP terminations when the IP terminations are added or deleted.The MGW counts the average number of IP terminations in the measurement period. Thestatistics can be used to estimate the usage of IP terminations.



Figure 6-60 Occupied average of IP termination


SystemMGW

End of period 1

End of period 2

Create a task

Average number of occupied IPterminations

Average number of occupied IPterminations


FormulaResult = Total number of occupied IP terminations in a measurement period/Measure period (s)

6.3.3 Occupied Peak of ATM Termination

DescriptionThis item refers to the maximum number of occupied ATM terminations generated by theVMGW under the control of the MSC server in a measurement period.

UnitNone

Measurement PointThe VMGW adds and deletes terminations under the control of the MSC server. The CMUupdates the number of occupied ATM terminations when adding and releasing ATMterminations. The MGW counts the maximum number of occupied ATM terminations in themeasurement period. The statistics can be used to estimate the usage of ATM terminations.




Figure 6-61 Occupied peak of ATM termination

MAX ATM Term Num

T

ATM TERM NUM


FormulaResult = Maximum number of occupied ATM terminations in a measurement period

6.3.4 Occupied Average of ATM Termination

DescriptionThis item refers to the average number of occupied ATM terminations generated by the VMGWunder the control of the MSC server in a measurement period.

UnitNone

Measurement PointThe VMGW adds and deletes terminations under the control of the MSC server. The CMUupdates the number of occupied ATM terminations when adding and releasing ATMterminations. The MGW counts the average number of occupied ATM terminations in themeasurement period. The statistics can be used to estimate the usage of ATM terminations.



Figure 6-62 Occupied average of ATM termination


SystemMGW

End of period 1

End of period 2

Create a task

Average number of occupiedATM terminations

Average number of occupiedATM terminations


FormulaResult = Total number of occupied ATM terminations in a measurement period/Measure period(s)

6.3.5 Occupied Peak of TDM Termination

DescriptionThis item refers to the maximum number of occupied TDM terminations generated by theVMGW under the control of the MSC server in a measurement period.

UnitNone

Measurement PointThe VMGW adds and deletes terminations under the control of the MSC server. The CMUupdates the number of occupied TDM terminations when adding and releasing TDMterminations. The MGW counts the maximum number of TDM terminations in the measurementperiod. The statistics can be used to estimate the usage of TDM terminations.




Figure 6-63 Occupied peak of TDM termination

MAX TDM Term Num

T

TDM TERM NUM


FormulaResult = Maximum number of occupied TDM terminations in a measurement period

6.3.6 Occupied Average of TDM Termination

DescriptionThis item refers to the average number of occupied TDM terminations generated by the VMGWunder the control of the MSC server in a measurement period.

UnitNone

Measurement PointThe VMGW adds and deletes terminations under the control of the MSC server. The CMUupdates the number of TDM terminations when adding and releasing TDM terminations. TheMGW counts the average number of TDM terminations in the measurement period. The statisticscan be used to estimate the usage of TDM terminations.



Figure 6-64 Occupied average of TDM termination


SystemMGW

End of period 1

End of period 2

Create a task

Average number of occupiedTDM terminations

Average number of occupiedTDM terminations


FormulaResult = Total number of occupied TDM terminations in a measurement period/Measure period(s)

6.4 Number of Resources Occupied by Context of the CMUBoard

This task is used to measure the resource usage of the MGW under the control of the MGC. Theresources refer to the channels used for codec conversion, rate adaptation, announcement, audiomixing, echo cancellation, and channels used by data services. These channels include thetranscoder (TC), echo cancellation (EC), and audio mixing resources. The measure object is theVMGW.

6.4.1 Occupied Peak of TC Resource

6.4.2 Occupied Average of TC Resource

6.4.3 Occupied Peak of EC Resource

6.4.4 Occupied Average of EC Resource

6.4.5 Occupied Peak of IWF Resource

6.4.6 Occupied Average of IWF Resource

6.4.7 Occupied Peak of CC Resource

6.4.8 Occupied Average of CC Resource




6.4.1 Occupied Peak of TC Resource

DescriptionThis item refers to the maximum number of occupied TC resources generated by the VMGWunder the control of the MSC server during a measurement period.

UnitNone

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU needs to applyand release the TC resources. The number of occupied TC resources is added when the CMUsuccessfully applies TC resources, and is decreased when the CMU releases TC resources. TheMGW counts the maximum number of occupied TC resources in the measurement period. Thestatistics can be used to estimate the usage of TC resources.

Figure 6-65 Occupied peak of TC resource

MAX TC Term Num

T

TC TERM NUM


FormulaResult = Maximum number of occupied TC resources in a measurement period

6.4.2 Occupied Average of TC Resource

DescriptionThis item refers to the average number of occupied TC resources generated by the VMGW underthe control of the MSC server in a measurement period.

UnitNone



Measurement Point

The VMGW initiates a session under the control of the MSC server. The CMU needs to applyand release the TC resources. The number of occupied TC resources is added when the CMUsuccessfully applies TC resources, and is decreased when the CMU releases TC resources. TheMGW counts the average number of occupied TC resources in the measurement period. Thestatistics can be used to estimate the usage of TC resources.

Figure 6-66 Occupied average of TC resource


SystemMGW

End of period 1

End of period 2

Create a task

Average occupied TCresources

Average occupied TCresources

Measurement Types


FormulaResult = Total number of occupied TC resources in a measurement period/Measure period (s)

6.4.3 Occupied Peak of EC Resource

Description

This item refers to the maximum number of occupied EC resources generated by the VMGWunder the control of the MSC server in a measurement period.

Unit

None

Measurement Point

The VMGW initiates a session under the control of the MSC server. The CMU needs to applyand release EC resources. The value of this item is added when the CMU successfully appliesEC resources, and is decreased when the CMU releases EC resources. The MGW counts themaximum number of occupied EC resources in the measurement period. The statistics can beused to estimate the usage of EC resources.




Figure 6-67 Occupied peak of EC resource

MAX EC Term Num

T

EC TERM NUM


FormulaResult = Maximum number of occupied EC resources in a measurement period

6.4.4 Occupied Average of EC Resource

DescriptionThis item refers to the average number of occupied EC resources generated by the VMGW underthe control of the MSC server in a measurement period.

UnitNone

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU needs to applyand release EC resources. The number of occupied EC resources is added when the CMUsuccessfully applies EC resources, and is decreased when the CMU releases EC resources. TheMGW counts the average number of occupied EC resources in the measurement period. Thestatistics can be used to estimate the usage of EC resources.



Figure 6-68 Occupied average of EC resource


SystemMGW

End of period 1

End of period 2

Create a task

Average occupied ECresources

Average occupied ECresources


FormulaResult = Total number of occupied EC resources in a measurement period/Measure period (s)

6.4.5 Occupied Peak of IWF Resource

DescriptionThis item refers to the maximum number of occupied IWF resources generated by the VMGWunder the control of the MSC server in a measurement period.

UnitNone

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU needs to applyand release IWF resources. The number of occupied IWF resources is added when the CMUsuccessfully applies IWF resources, and is decreased when the CMU releases IWF resources.The MGW counts the maximum number of occupied IWF resources in the measurement period.The statistics can be used to estimate the usage of IWF resources.




Figure 6-69 Occupied peak of IWF resource

MAX IWF Num

T

IWF NUM


FormulaResult = Maximum number of occupied IWF resources in a measurement period

6.4.6 Occupied Average of IWF Resource

DescriptionThis item refers to the average number of occupied IWF resources generated by the VMGWunder the control of the MSC server in a measurement period.

UnitNone

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU needs to applyand release IWF resources. The number of occupied IWF resources is added when the CMUsuccessfully applies IWF resources, and is decreased when the CMU releases IWF resources.The MGW counts the average number of occupied IWF resources in the measurement period.The statistics can be used to estimate the usage of IWF resources.



Figure 6-70 Occupied average of IWF resource


SystemMGW

End of period 1

End of period 2

Create a task

Average occupied IWF resources

Average occupied IWF resources


FormulaResult = Total number of occupied IWF resources in a measurement period/Measure period (s)

6.4.7 Occupied Peak of CC Resource

DescriptionThis item refers to the maximum number of occupied audio mixing resources generated by theVMGW under the control of the MSC server in a measurement period.

UnitNone

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU needs to applyand release audio mixing resources. The number of occupied audio mixing resources is addedwhen the CMU successfully applies audio mixing resources, and is decreased when the CMUreleases audio mixing resources. The MGW counts the maximum number of occupied audiomixing resources in the measurement period. The statistics can be used to estimate the usage ofaudio mixing resources.




Figure 6-71 Occupied peak of CC resource

MAX CC Term Num

T

CC TERM NUM


FormulaResult = Maximum number of occupied audio mixing resources in a measurement period

6.4.8 Occupied Average of CC Resource

DescriptionThis item refers to the average number of occupied audio mixing resources generated by theVMGW under the control of the MSC server in a measurement period.

UnitNone

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU needs to applyand release audio mixing resources. The number of occupied audio mixing resources is addedwhen the CMU successfully applies audio mixing resources, and is decreased when the CMUreleases audio mixing resources. The MGW counts the average number of occupied audiomixing resources in the measurement period. The statistics can be used to estimate the usage ofaudio mixing resources.



Figure 6-72 Occupied average of CC resource


SystemMGW

End of period 1

End of period 2

Create a task

Average occupied CC resources

Average occupied CC resources

Measurement Types


FormulaResult = Total number of occupied audio mixing resources in a measurement period/Measureperiod (s)

6.5 Conference Call StatisticsThis task is used to count successful conference calls. The measure object is the VMGW.

6.5.1 Number of Conference Call Success Times

6.5.2 Number of Conference Call Trail Times

6.5.1 Number of Conference Call Success Times

Description

This item refers to the number of successful conference calls.

Unit

Number of times

Measurement Point

The VMGW initiates a session under the control of the MSC server. The number of conferencecalls is added by one when the CMU successfully creates a conference call. The MGW countsthe number of conference calls in the measurement period. The statistics can be used to estimatethe connection status of conference calls.




Figure 6-73 Number of conference call success times


SystemMGW

End of period 1

End of period 2

Create a task

Number of successfulconference calls

Number of successfulconference calls


FormulaResult = Total number of successful conference calls in a measurement period

6.5.2 Number of Conference Call Trail Times

DescriptionThis item refers to the number of conference call attempts.

UnitNumber of times

Measurement PointThe VMGW initiates a session under the control of the MSC server. The number of conferencecalls (including the successful ones and failed ones) is added by one when the CMU attemptsto create a conference call. The MGW counts the number of conference call attempts in themeasurement period. The statistics can be used to count conference calls.



Figure 6-74 Number of conference call trail times


SystemMGW

End of period 1

End of period 2

Create a task

Number of conference call attempts

Number of conference call attempts


FormulaResult = Total number of conference call attempts in a measurement period

6.6 Voice Call StatisticsThis task is used to measure resource features of the MGW. The measure object is the VMGW.

6.6.1 Number of Transcoder Call Success Times

6.6.2 Number of TrFO Call Success Times

6.6.3 Number of Total Voice Call Success Times

6.6.4 Number of Failure Times Lacking of TC Resource

6.6.5 Number of Transcoder Resource Trail Times

6.6.1 Number of Transcoder Call Success Times

DescriptionThis item refers to the number of successful TC calls between two terminations of the VMGWafter call establishment.

UnitNumber of times

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU updates thenumber of successful TC calls when creating a call using the TC resource between terminations.




The MGW counts the number of successful TC calls in the measurement period. This can beused to estimate the usage of TC resources.

Figure 6-75 Number of transcoder call success times


SystemMGW

End of period 1

End of period 2

Create a task

Number of successful callsusing transcoder

Number of successful callsusing transcoder


FormulaResult = Total number of successful calls using TCs in a measurement period

6.6.2 Number of TrFO Call Success Times

DescriptionThis item refers to the number of successful calls not using TC resources between twoterminations on a specific VMGW after call establishment.

UnitNumber of times

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU updates thenumber of successful transcoder free operation (TrFO) calls when creating a call without TCsbetween terminations. The MGW counts the number of successful TrFO calls in themeasurement period. The statistics can be used to estimate the usage of TC resources.



Figure 6-76 Number of TrFO call success times


SystemMGW

End of period 1

End of period 2

Create a task

Number of successful callsusing TrFO

Number of successful callsusing TrFO


FormulaResult = Total number of successful calls using TrFO in a measurement period

6.6.3 Number of Total Voice Call Success Times

DescriptionThis item refers to the number of successful voice calls on a specific VMGW.

UnitNumber of times

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU updates thenumber of voice calls when creating a new voice call. The MGW counts the number of successfulvoice calls in the measurement period. The statistics can be used to estimate the voice status ofthe VMGW.




Figure 6-77 Number of total voice call success times


SystemMGW

End of period 1

End of period 2

Create a task

Number of successful voice calls

Number of successful voice calls


FormulaResult = Total number of successful voice calls

6.6.4 Number of Failure Times Lacking of TC Resource

DescriptionThis item refers to the number of call connection failures on a specific VMGW due to the lackof TC resources.

UnitNumber of times

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU adds the numberof call connection failures due to the lack of TC resources when a call fails due to such a reason.The MGW counts the number of call connection failures due to the lack of TC resources in ameasurement period. The statistics can be used to estimate the usage of TC resources of theVMGW.



Figure 6-78 Number of failure times lacking of TC resource


SystemMGW

End of period 1

End of period 2

Create a task

Number of times of call loss due toinsufficient TC resources

Number of times of call loss due toinsufficient TC resources


FormulaResult = Total number of call failures due to the lack of TC resources in a measurement period

6.6.5 Number of Transcoder Resource Trail Times

DescriptionThis item refers to the number of times the CMU attempts to occupy TC resources on a specificVMGW.

UnitNumber of times

Measurement PointThe VMGW initiates a session under the control of the MSC server. The CMU applies for TCresources. The number of this item is added when a new TC resource is applied. The MGWcounts the number of attempts for TC resources in a measurement period. The statistics can beused to estimate the usage of TC resources on the VMGW.




Figure 6-79 Number of transcoder resource trail times


SystemMGW

End of period 1

End of period 2

Create a task

Number of attempts for TCresources

Number of attempts for TCresources


FormulaResult = Total number of attempts for TC resources in a measurement period



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Technology