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01 05 board no.

  1. 1. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway 6 No. of Virtual Media GatewayAbout This Chapter 6.1 H.248 Application Statistics This task is used to measure H.248 messages, transactions, and commands transmitted between the CMU and the MGC. The measure object is the VMGW. 6.2 Context Management Statistics This task is used to measure context handling conditions of the MGW under the control of the MGC. The measure object is the VMGW. 6.3 Number of Terminations Occupied by Context This 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. The measure object is the VMGW. 6.4 Number of Resources Occupied by Context of the CMU Board This task is used to measure the resource usage of the MGW under the control of the MGC. The resources refer to the channels used for codec conversion, rate adaptation, announcement, audio mixing, echo cancellation, and channels used by data services. These channels include the transcoder (TC), echo cancellation (EC), and audio mixing resources. The measure object is the VMGW. 6.5 Conference Call Statistics This task is used to count successful conference calls. The measure object is the VMGW. 6.6 Voice Call Statistics This task is used to measure resource features of the MGW. The measure object is the VMGW.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-1
  2. 2. UMG89006 No. of Virtual Media Gateway Performance Metrics Reference6.1 H.248 Application Statistics This task is used to measure H.248 messages, transactions, and commands transmitted between the 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 Bytes6-2 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  3. 3. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway 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 Command6.1.1 Number of Received MessageDescription This item refers to the number of H.248 messages that are received by a 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 received messages.Unit NoneMeasurement Point The item is measured after the H.248 protocol stack successfully decodes the messages received by the MGW from the MGC. Refer to Figure 6-1. Figure 6-1 Number of received message MGC MGW H.248 MSG A H.248 MSGIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-3
  4. 4. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Types Duration sampling typeFormula Result = Total number of received messages6.1.2 Number of Sent MessageDescription This item refers to the number of H.248 messages sent by the MGW to the MGC. The item is counted by the application layer of the CMU, before the H.248 protocol stack encodes the messages.Unit NoneMeasurement Point The item is measured when the MGW sends messages to the MGC. Refer to Figure 6-2. Figure 6-2 Number of sent message MGC MGW H.248 MSG A H.248 MSGMeasurement Types Duration sampling typeFormula Result = Total number of sent messages6.1.3 Number of Received Trans RequestDescription This item refers to the number of transactions contained in H.248 messages that are received by the 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.6-4 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  5. 5. UMG8900Performance Metrics Reference 6 No. of Virtual Media GatewayUnit NoneMeasurement 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 MGW H.248PS PPU CMU MSG -->Transation1 Transation2 H.248 MSG REQ ... A H.248 MSG RESP MSG <-- Transation1 Transation2 ...Measurement Types Duration sampling typeFormula Result = Total number of received transaction requests6.1.4 Number of Sent Trans RequestDescription This item refers to the number of transactions contained in the H.248 messages sent by the MGW to the MGC. The item is counted by the application layer of the CMU, before the H.248 protocol stack encodes the messages.Unit NoneMeasurement Point The item is measured when the MGW sends requests to the MGC. Refer to Figure 6-4.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-5
  6. 6. UMG89006 No. of Virtual Media Gateway Performance Metrics Reference Figure 6-4 Number of sent trans request MGC MGW H.248PS PPU CMU H.248 MSG REQ MSG <-- Transation1 Transation2 ... A H.248 MSG RESP MSG -->Transation1 Transation2 ...Measurement Types Duration sampling typeFormula Result = Total number of sent transaction requests6.1.5 Number of Received Trans ResponseDescription This item refers to the number of transactions contained in H.248 response messages that are received by the 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 NoneMeasurement Point The item is measured when the MGW receives transaction responses from the MGC. Refer to Figure 6-5.6-6 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  7. 7. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-5 Number of received trans response MGC MGW H.248PS PPU CMU MSG <-- Transation1 Transation2 H.248 MSG REQ ... MSG -->Transation1 H.248 MSG RESP Transation2 ... AMeasurement Types Duration sampling typeFormula Result = Total number of received transaction responses6.1.6 Number of Sent Trans ResponseDescription This item refers to the number of transactions contained in the H.248 response messages sent by the MGW to the MGC. The item is counted by the application layer of the CMU, before the H.248 protocol stack encodes the messages.Unit NoneMeasurement Point The item is measured when the MGW sends transaction responses to the MGC. Refer to Figure 6-6.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-7
  8. 8. UMG89006 No. of Virtual Media Gateway Performance Metrics Reference Figure 6-6 Number of sent trans response MGC MGW H.248PS PPU CMU MSG -->Transation1 H.248 MSG REQ Transation2 ... MSG <-- Transation1 Transation2 H.248 MSG RESP ... AMeasurement Types Duration sampling typeFormula Result = Total number of sent transaction responses6.1.7 Number of Received Action RequestDescription According to H.248, one message may contain several transactions and one transaction may contain several actions. This item refers to the number of action requests contained in H.248 request messages that are received by the 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 received messages.Unit NoneMeasurement Point The item is measured when the MGW receives requests from the MGC. Refer to Figure 6-7.6-8 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  9. 9. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-7 Number of received action request MGC MGW H.248PS PPU CMU MSG -->Transation1 H.248 MSG REQ Transation2 ... A H.248 MSG RESP MSG <-- Transation1 Transation2 ...Measurement Types Duration sampling typeFormula Result = Total number of received action requests6.1.8 Number of Sent Action RequestDescription According to H.248, one message may contain several transactions and one transaction may contain several actions. This item refers to the number of actions contained in the H.248 request messages sent by the MGW to the MGC. The item is counted by the application layer of the CMU, before the H.248 protocol stack encodes the messages.Unit NoneMeasurement Point The item is measured when the MGW sends requests to the MGC. Refer to Figure 6-8.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-9
  10. 10. UMG89006 No. of Virtual Media Gateway Performance Metrics Reference Figure 6-8 Number of sent action request MGC MGW H.248PS PPU CMU MSG <--Transation1 <-Action1 ... <-Action2 H.248 MSG REQ ... A H.248 MSG RESP MSG -->Transation1 ->Action1 ... ->Action2 ...Measurement Types Duration sampling typeFormula Result = Total number of sent action requests6.1.9 Number of Received Action ResponseDescription According to H.248, one message may contain several transactions and one transaction may contain several actions. This item refers to the number of actions contained in H.248 response messages that are received by the 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 response messages.Unit NoneMeasurement Point The item is measured when the MGW receives responses from the MGC. Refer to Figure 6-9.6-10 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  11. 11. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-9 Number of received action response MGC MGW H.248PS PPU CMU MSG <--Transation1 <-Action1 ... <-Action2 H.248 MSG REQ ... H.248 MSG RESP MSG -->Transation1 ->Action1 A ... ->Action2 ...Measurement Types Duration sampling typeFormula Result = Total number of received action responses6.1.10 Number of Sent Action ResponseDescription According to H.248, one message may contain several transactions and one transaction may contain several actions. This item refers to the number of actions contained in the H.248 response messages sent by the MGW to the MGC. The item is counted by the application layer of the CMU, before the H.248 protocol stack encodes the messages.Unit NoneMeasurement Point The item is measured when the MGW sends responses to the MGC. Refer to Figure 6-10.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-11
  12. 12. UMG89006 No. of Virtual Media Gateway Performance Metrics Reference Figure 6-10 Number of sent action response MGC MGW H.248PS PPU CMU MSG -->Transation1 ->Action1 H.248 MSG REQ ... ->Action2 ... H.248 MSG RESP MSG <--Transation1 <-Action1 ... A <-Action2 ...Measurement Types Duration sampling typeFormula Result = Total number of sent action responses6.1.11 Number of Received SERVICECHANGE RequestDescription The SERVICECHANGE command in the request is a service change command. After receiving this command, the MGW performs service change as specified in the request. The change can be 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 are received by the VMGW from the MGC.Unit NoneMeasurement Point The 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 Figure 6-11.6-12 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  13. 13. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-11 Number of received SERVICECHANGE request MGC MGW SERVICE CHANGE REQ A SERVICE CHANGE RESPMeasurement Types Duration sampling typeFormula Result = Total number of received SERVICECHANGE requests6.1.12 Number of Received SERVICECHANGE ResponseDescription l 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 application layer of the CMU.Unit NoneMeasurement Point This 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 status change reported by the MGW. Refer to Figure 6-12. Figure 6-12 Number of received SERVICECHANGE response MGC MGW SERVICE CHANGE REQ SERVICE CHANGE RESP AIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-13
  14. 14. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Types Duration sampling typeFormula Result = Total number of received SERVICECHANGE responses6.1.13 Number of Sent SERVICECHANGE RequestDescription l 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 the VMGW to the MGC.Unit NoneMeasurement Point The item is measured when the MGW sends SERVICECHANGE requests to the MGC. The MGW sends this request when its status or the status of the terminations changes. Refer to Figure 6-13. Figure 6-13 Number of sent SERVICECHANGE request MGC MGW SERVICE CHANGE REQ A SERVICE CHANGE RESPMeasurement Types Duration sampling typeFormula Result = Total number of sent SERVICECHANGE requests6-14 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  15. 15. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway6.1.14 Number of Sent SERVICECHANGE ResponseDescription l The SERVICECHANGE command is a service change command. After receiving this command, the MGW performs service change as specified in the request. The change can be that the MGC requires the MGW to exit from the service or to register with another MGC. 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 NoneMeasurement Point The item is measured when the MGW sends SERVICECHANGE responses to the MGC. The MGW sends the response to the MGC after processing the specific service change. Refer to Figure 6-14. Figure 6-14 Number of sent SERVICECHANGE response MGC MGW SERVICE CHANGE REQ SERVICE CHANGE RESP AMeasurement Types Duration sampling typeFormula Result = Total number of sent SERVICECHANGE responses6.1.15 Number of Sent NOTIFY RequestDescription l 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.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-15
  16. 16. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceUnit NoneMeasurement Point The item is measured when the MGW sends NOTIFY requests to the MGC. The MGW informs the MGC of events through the NOTIFY requests. Refer to Figure 6-15. Figure 6-15 Number of sent NOTIFY request MGC MGW NOTIFY REQ A NOTIFY RESPMeasurement Types Duration sampling typeFormula Request = Total number of sent NOTIFY requests6.1.16 Number of Received NOTIFY ResponseDescription l 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 the CMU. l After the MGW sends the NOTIFY command to the MGC to report events, the MGC responds to the NOTIFY command.Unit NoneMeasurement Point The item is measured when the MGW receives NOTIFY responses from the MGC. The MGC sends the response to the MGW after processing the reported events. Refer to Figure 6-16.6-16 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  17. 17. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-16 Number of received NOTIFY response MGC MGW NOTIFY REQ NOTIFY RESP AMeasurement Types Duration sampling typeFormula Result = Total number of received NOTIFY responses6.1.17 Number of Received ADD RequestDescription l 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.Unit NoneMeasurement Point The item is measured when the MGW receives ADD requests from the MGC. The MGW receives this request during call establishment. Refer to Figure 6-17. Figure 6-17 Number of received ADD request MGC MGW ADD REQ A ADD RESPIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-17
  18. 18. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Types Duration sampling typeFormula Result = Total number of received ADD requests6.1.18 Number of Sent ADD ResponseDescription This item refers to the number of responses to the H.248 ADD command, which are returned from the VMGW to the MGC. The item is counted by the application layer of the CMU. During call establishment, the MGC requires the MGW to allocate terminations by sending the ADD command. The MGW returns the responses to the MGC after processing the requests.Unit NoneMeasurement Point The item is measured when the MGW sends ADD responses to the MGC. The MGW sends the response to the MGC after allocating the terminations. Refer to Figure 6-18. Figure 6-18 Number of sent ADD response MGC MGW ADD REQ ADD RESP AMeasurement Types Duration sampling typeFormula Result = Total number of sent ADD responses6-18 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  19. 19. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway6.1.19 Number of Received SUBTRACT RequestDescription l 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.Unit NoneMeasurement Point The item is measured when the MGW receives SUBTRACT requests from the MGC. The MGC sends 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 MGW SUBTRACT REQ A SUBTRACT RESPMeasurement Types Duration sampling typeFormula Result = Total number of received SUBTRACT requests6.1.20 Number of Sent SUBTRACT ResponseDescription l 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 the CMU. l After the call is released, the MGC sends SUBTRACT requests to the MGW, and then the MGW returns the responses containing the statistic information such as traffic.Unit NoneIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-19
  20. 20. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Point The item is measured when the MGW sends SUBTRACT responses to the MGC. The MGW sends the response after releasing the call. Refer to Figure 6-20. Figure 6-20 Number of sent SUBTRACT response MGC MGW SUBTRACT REQ SUBTRACT RESP AMeasurement Types Duration sampling typeFormula Result = Total number of sent SUBTRACT responses6.1.21 Number of Received MOVE RequestDescription l 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.Unit NoneMeasurement Point The item is measured when the MGW receives MOVE requests from the MGC. The MGW receives the request when switchover occurs. Refer to Figure 6-21.6-20 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  21. 21. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-21 Number of received MOVE request MGC MGW MOVE REQ A MOVE RESPMeasurement Types Duration sampling typeFormula Result = Total number of received MOVE requests6.1.22 Number of Sent MOVE ResponseDescription l This item refers to the number of responses to the H.248 MOVE command, which are returned from the VMGW to 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. The MGW returns the responses to the MGC after processing the requests.Unit NoneMeasurement Point The item is measured when the MGW sends MOVE responses to the MGC. The MGW sends the response to the MGC after processing the switchover request. Refer to Figure 6-22. Figure 6-22 Number of sent MOVE response MGC MGW MOVE REQ MOVE RESP AIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-21
  22. 22. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Types Duration sampling typeFormula Result = Total number of sent MOVE responses6.1.23 Number of Received MODIFY RequestDescription l 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 of terminations, such as playing announcement to or collecting digits of a termination and reporting information of the peer termination to the local termination.Unit NoneMeasurement Point The item is measured when the MGW receives MODIFY requests from the MGC. The MGC sends the request to modify the attributes of a termination. Refer to Figure 6-23. Figure 6-23 Number of received MODIFY request MGC MGW MODIFY REQ A MODIFY RESPMeasurement Types Duration sampling typeFormula Result = Total number of received MODIFY requests6-22 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  23. 23. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway6.1.24 Number of Sent MODIFY ResponseDescription l This item refers to the number of responses to the H.248 MODIFY command, which are returned from the VMGW to 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 of terminations, such as announcement to or collecting digits of a termination and reporting information of the peer termination to the local termination. The MGW returns the response containing the processing result to the MGC.Unit NoneMeasurement Point The item is measured when the MGW sends MODIFY responses to the MGC. The MGW sends the response after modifying the attributes of the termination. Refer to Figure 6-24. Figure 6-24 Number of sent MODIFY response MGC MGW MODIFY REQ MODIFY RESP AMeasurement Types Duration sampling typeFormula Result = Total number of sent MODIFY responses6.1.25 Number of Received AUDITVALUE RequestDescription l 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.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-23
  24. 24. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceUnit NoneMeasurement Point The item is measured when the MGW receives AUDITVALUE requests from the MGC. The MGC sends the request to obtain the information of the MGW or terminations. Refer to Figure 6-25. Figure 6-25 Number of received AUDITVALUE request MGC MGW AUDITVALUE REQ A AUDITVALUE RESPMeasurement Types Duration sampling typeFormula Result = Total number of received AUDITVALUE requests6.1.26 Number of Sent AUDITVALUE ResponseDescription l 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 of the CMU. l The MGW reports the status and statistic information of itself and its terminations to the MGC by sending the AUDITVALUE responses.Unit NoneMeasurement Point The item is measured when the MGW sends AUDITVALUE responses to the MGC. The MGW sends the response after processing the AUDITVALUE request. Refer to Figure 6-26.6-24 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  25. 25. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-26 Number of sent AUDITVALUE response MGC MGW AUDITVALUE REQ AUDITVALUE RESP AMeasurement Types Duration sampling typeFormula Result = Total number of sent AUDITVALUE responses6.1.27 Number of Received AUDITCAPABILITY RequestDescription l 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.Unit NoneMeasurement Point The 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 to Figure 6-27. Figure 6-27 Number of received AUDITCAPABILITY request MGC MGW AUDITCAPABILITY REQ A AUDITCAPABILITY RESPIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-25
  26. 26. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Types Duration sampling typeFormula Result = Total number of received AUDITCAPABILITY requests6.1.28 Number of Sent AUDITCAPABILITY ResponseDescription l 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 application layer of the CMU. l The MGW reports the events and signals supported by terminations of the MGW to the MGC by sending the AUDITCAPABILITY responses.Unit NoneMeasurement Point The item is measured when the MGW sends AUDITCAPABILITY responses to the MGC. The MGW sends the response after processing the AUDITCAPABILITY request. Refer to Figure 6-28. Figure 6-28 Number of sent AUDITCAPABILITY response MGC MGW AUDITCAPABILITY REQ AUDITCAPABILITY RESP AMeasurement Types Duration sampling typeFormula Result = Total number of sent AUDITCAPABILITY responses6-26 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  27. 27. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway6.1.29 Number of Received H.248 BytesDescription l 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.Unit ByteMeasurement Point The item is measured when the MGW receives H.248 messages sent by the MGC. Refer to Figure 6-29. Figure 6-29 Number of received H.248 bytes MGC MGW H.248 MSG A H.248 MSGMeasurement Types Duration sampling typeFormula Result = Total number of received H.248 bytes6.1.30 Number of Sent H.248 BytesDescription l 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.Unit ByteIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-27
  28. 28. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Point The item is measured when the MGW sends H.248 messages to the MGC. Refer to Figure 6-30. Figure 6-30 Number of sent H.248 bytes MGC MGW H.248 MSG H.248 MSG AMeasurement Types Duration sampling typeFormula Result = Total number of sent H.248 bytes6.1.31 Number of ADD Request Err Process TimesDescription l 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 are insufficient or the MGW fails to process the requests, the MGW returns error responses.Unit Number of timesMeasurement Point The item is measured when the MGW receives the ADD requests from the MGC. The value of this item is added when the ADD requests are incorrect or the MGW fails to process the requests. Refer to Figure 6-31.6-28 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  29. 29. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-31 Number of ADD request err process times MGC MGW ADD REQ A ADD RESPMeasurement Types Duration sampling typeFormula Result = Total number of ADD request processing failures in a measurement period6.1.32 Number of SUBTRACT Request Err Process TimesDescription l 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 error responses.Unit Number of timesMeasurement Point The item is measured when the MGW receives the SUBTRACT requests from the MGC. The value of this item is added when the SUBTRACT requests are incorrect or the MGW fails to process the requests. Refer to Figure 6-32. Figure 6-32 Number of SUBTRACT request err process times MGC MGW SUBTRACT REQ A SUBTRACT RESPIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-29
  30. 30. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Types Duration sampling typeFormula Result = Total number of SUBTRACT request processing failures in a measurement period6.1.33 Number of MODIFY Request Err Process TimesDescription This item refers to the number of failures in processing the MODIFY requests. The item is counted by the MGW. The MGC requires the MGW to modify the information of terminations by sending the MODIFY requests to the MGW. If the requests are incorrect or the MGW fails to process the requests, the MGW returns the error responses.Unit Number of timesMeasurement Point The item is measured when the MGW receives the MODIFY requests from the MGC. The value of this item is added when the MODIFY requests are incorrect or the MGW fails to process the requests. Refer to Figure 6-33. Figure 6-33 Number of MODIFY request err process times MGC MGW MODIFY REQ A MODIFY RESPMeasurement Types Duration sampling typeFormula Result = Total number of MODIFY request processing failures in a measurement period6-30 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  31. 31. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway6.1.34 Number of MOVE Request Err Process TimesDescription This item refers to the number of failures in processing the MOVE requests. The item is counted by the MGW. After call connection, the MGC sends the MOVE requests to the MGW when a subscriber moves from one office to another. If the requests are incorrect or the MGW fails to process the requests, the MGW returns error responses.Unit Number of timesMeasurement Point The item is measured when the MGW receives the MOVE requests from the MGC. The value of this item is added when the MOVE requests are incorrect or the MGW fails to process the requests. Refer to Figure 6-34. Figure 6-34 Number of MOVE request err process times MGC MGW MOVE REQ A MOVE RESPMeasurement Types Duration sampling typeFormula Result = Total number of MOVE request processing failures in a measurement period6.1.35 Number of AUDITVALUE Request Err Process TimesDescription This item refers to the number of failures in processing the AUDITVALUE requests. The item is 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 error responses.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-31
  32. 32. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceUnit Number of timesMeasurement Point The 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 MGW fails to process the requests. Refer to Figure 6-35. Figure 6-35 Number of AUDITVALUE request err process times MGC MGW AUDITVALUE REQ AUDITVALUE RESP AMeasurement Types Duration sampling typeFormula Result = Total number of AUDITVALUE request processing failures in a measurement period6.1.36 Number of SERVICECHANGE Request Err Process TimesDescription This item refers to the number of failures in processing the SERVICECHANGE requests. The item is counted by the MGW. The MGC requires the MGW to process service change by sending the SERVICECHANGE requests to the MGW. If the requests are incorrect or the MGW fails to process the requests, the MGW returns error responses.Unit Number of timesMeasurement Point The item is measured when the MGW processes SERVICECHANGE requests. The value of this item is added when the SERVICECHANG requests are incorrect or the MGW fails to process the requests. Refer to Figure 6-36.6-32 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  33. 33. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-36 Number of SERVICECHANGE request err process times MGC MGW SERVICE CHANGE REQ A SERVICE CHANGE RESPMeasurement Types Duration sampling typeFormula Result = Total number of SERVICECHANGE request processing failures in a measurement period6.1.37 Number of Received NOTIFY Err Process TimesDescription This item refers to the number of failures in processing the NOTIFY requests. The item is counted by the MGW. The MGW reports events to the MGC by sending the NOTIFY requests. If the requests are incorrect or the MGC fails to process the requests, the MGC returns the error responses.Unit Number of timesMeasurement Point The item is measured when the MGW processes NOTIFY requests. The value of this item is added when the NOTIFY requests sent by the MGW are incorrect or the MGC fails to process the requests. Refer to Figure 6-37.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-33
  34. 34. UMG89006 No. of Virtual Media Gateway Performance Metrics Reference Figure 6-37 Number of received NOTIFY err process times MGC MGW NOTIFY REQ A NOTIFY RESPMeasurement Types Duration sampling typeFormula Result = Total number of NOTIFY request processing failures in a measurement period6.1.38 Number of Received SERVICECHANGE Err Process TimesDescription This item refers to the number of failures in processing the SERVICECHANGE requests. The item is counted by the MGW. The MGW reports the service changes or status changes of terminations to the MGC by sending the SERVICECHANGE requests. If the requests are incorrect or the MGC fails to process the requests, the MGC returns the error responses.Unit Number of timesMeasurement Point The item is measured when the MGW processes SERVICECHANGE requests. The value of this item is added when the SERVICECHANG requests sent by the MGW are incorrect or the MGC fails to process the requests. Refer to Figure 6-38.6-34 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  35. 35. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-38 Number of received SERVICECHANGE err process times MGC MGW SERVICE CHANGE REQ A SERVICE CHANGE RESPMeasurement Types Duration sampling typeFormula Result = Total number of SERVICECHANGE request processing failures in a measurement period6.1.39 Number of AUDITCAPABILITY Req Err Process TimesDescription This item refers to the number of failures in processing the AUDITCAPABILITY requests. The item is counted by the MGW.Unit Number of timesMeasurement Point The item is measured when the MGW receives the AUDITCAPABILITY requests from the MGC. Refer to Figure 6-39. Figure 6-39 Number of AUDITCAPABILITY req err process times MGC MGW AUDITCAPABILITY REQ A AUDITCAPABILITY RESPIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-35
  36. 36. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Types Duration sampling typeFormula Result = Total number of AUDITCAPABILITY request processing failures in a measurement period6.1.40 Number of Sent Error CommandDescription This item refers to the number of times the Mc interface sends error commands in a measurement period.Unit Number of timesMeasurement Point When the Mc interface sends an error command, the value of this item is added by one. Refer to the following figure. Figure 6-40 Number of sent error command MGC MGW The Mc interface sends error commands.Measurement Types Traffic sampling typeFormula None6.1.41 Number of Sent Error NOTIFY CommandDescription This item refers to the number of times the Mc interface sends error NOTIFY commands in a measurement period.6-36 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  37. 37. UMG8900Performance Metrics Reference 6 No. of Virtual Media GatewayUnit Number of timesMeasurement Point When the Mc interface sends an error NOTIFY command, the value of this item is added by one. Refer to the following figure. Figure 6-41 Number of sent error NOTIFY command MGC MGW The Mc interface sends error notify commands of H.248 messages.Measurement Types Duration sampling typeFormula None6.1.42 Number of Sent Error SERVICECHANGE CommandDescription This item refers to the number of times the Mc interface sends error SERVICECHANGE commands in a measurement period.Unit Number of timesMeasurement Point When the Mc interface sends an error SERVICECHANGE command, the value of this item is added by one. Refer to the following figure.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-37
  38. 38. UMG89006 No. of Virtual Media Gateway Performance Metrics Reference Figure 6-42 Number of sent error SERVICECHANGE command MGC MGW The Mc interface sends error ServiceChange commands of H.248 messages.Measurement Types Traffic sampling typeFormula None6.2 Context Management Statistics This task is used to measure context handling conditions of the MGW under the control of the MGC. 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 Contexts6-38 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  39. 39. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway6.2.1 Total of Contexts Created NewlyDescription This item refers to the total number of contexts established by the VMGW under the control of the MSC server.Unit NoneMeasurement Point The item is measured when the VMGW generates a new context under the control of the MSC server. 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 is created. In this case, the value of this item is added. Refer to Figure 6-43. Figure 6-43 Total of contexts created newly MGC MGW ADD.REQ/MOVE.REQ (CONTEXT=$) ADD.RESP/MOVE.RESP A (CONTEXT=C1)Measurement Types Average sampling typeFormula Result = Total number of newly created contexts6.2.2 Total of Successful Contexts ReleasedDescription This item refers to the total number of contexts that are successfully released by the VMGW under the control of the MSC server. Due to the limited VMGW resources, some contexts may fail to be established. Thus, call establishment may fail.Unit NoneIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-39
  40. 40. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Point The item is measured when the VMGW releases a created context under the control of an MSC server. 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 is created. 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 MGW SUB.REQ (CONTEXT=C1) SUB.RESP A (CONTEXT=C1)Measurement Types Average sampling typeFormula Result = Total number of successfully released contexts6.2.3 Total DurationDescription This item refers to the time length from the establishment to release of contexts.Unit SecondMeasurement Point The VMGW releases a created context under the control of an MSC server. The CMU counts the duration occupied by the context when the context is released, and adds the duration to the value 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 context creating time (point A in the following figure) is recorded. When the context is released, the total duration occupied by the context can be obtained. Refer to Figure 6-45. The total duration refers to sum of duration of each context.6-40 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  41. 41. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-45 Total duration MGC MGW ADD.REQ(C1) A ADD.RESP(C1) ... SUB.REQ(C1) B SUB.RESP(C1)Measurement Types Average sampling typeFormula Result = Total duration occupied by each context6.2.4 Peak of the Number of ContextDescription This item refers to the maximum number of contexts in a measurement period.Unit NoneMeasurement Point The MGW generates or releases a context under the control of the MSC server. The CMU updates the number of contexts when generating or releasing a context. The MGW counts the maximum number of current contexts in the measurement period. The statistics can be used to estimate the status of the current calls. Figure 6-46 Peak of the number of context Context NUM MAX Context Num TIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-41
  42. 42. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Types Average sampling typeFormula Result = Maximum number of contexts in a measurement period6.2.5 Average of the Number of ContextDescription This item refers to the average number of contexts in a measurement period.Unit NoneMeasurement Point The VMGW generates or releases a context under the control of the MSC server. The CMU updates the number of contexts when generating or releasing a context. The MGW counts the average number of current contexts in the measurement period. The statistics can be used to estimate the status of the current calls. Figure 6-47 Average of the number of context Performance MGW Management System Create a task Average number of contexts End of period 1 Average number of contexts End of period 2Measurement Types Average sampling typeFormula Result = Total number of contexts in a measurement period/Measure period6-42 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  43. 43. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway6.2.6 Number of Context of TDM-TDMDescription This item refers to the number of contexts that the VMGW successfully establishes after adding two TDM terminations to the contexts under the control of the MSC server.Unit NoneMeasurement 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. The statistics can be used to estimate the status of TDM-TDM calls. Figure 6-48 Number of context of TDM-TDM MGC MGW ADD.REQ(TDM) ADD.RESP ADD.REQ(TDM) ... ADD.RESP ... A SUB.REQ SUB.RESPMeasurement Types Average sampling typeFormula Result = Total number of TDM-TDM contexts6.2.7 Number of Context of IP-TDMDescription This item refers to the number of contexts that the VMGW successfully establishes after adding an IP termination and a TDM termination to the contexts under the control of the MSC server.Unit NoneIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-43
  44. 44. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Point The 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. The statistics can be used to estimate the status of IP-TDM calls. Figure 6-49 Number of context of IP-TDM MGC MGW ADD.REQ(TDM) ADD.RESP ADD.REQ(IP) ... ADD.RESP ... A SUB.REQ SUB.RESPMeasurement Types Average sampling typeFormula Result = Total number of IP-TDM contexts6.2.8 Number of Context of ATM-TDMDescription This item refers to the number of contexts that the VMGW successfully establishes after adding an ATM termination and a TDM termination to the contexts under the control of the MSC server.Unit NoneMeasurement Point The 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. The statistics can be used to estimate the status of ATM-TDM calls.6-44 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  45. 45. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-50 Number of context of ATM-TDM MGC MGW ADD.REQ(TDM) ADD.RESP ADD.REQ(ATM) ... ADD.RESP ... A SUB.REQ SUB.RESPMeasurement Types Average sampling typeFormula Result = Total number of ATM-TDM contexts6.2.9 Number of Context of IP-IPDescription This item refers to the number of contexts that the VMGW successfully establishes after adding two IP terminations to the contexts under the control of the MSC server.Unit NoneMeasurement Point The VMGW generates new contexts under the control of the MSC server. The number of IP-IP contexts is added by one when the CMU successfully creates an IP-IP context. The statistics can be used to estimate the status of IP-IP calls. Figure 6-51 Number of context of IP-IP MGC MGW ADD.REQ(IP) ADD.RESP ADD.REQ(IP) ... ADD.RESP ... A SUB.REQ SUB.RESPIssue 01 (2007-07-26) Huawei Technologies Proprietary 6-45
  46. 46. UMG89006 No. of Virtual Media Gateway Performance Metrics ReferenceMeasurement Types Average sampling typeFormula Result = Total number of IP-IP contexts6.2.10 Number of Context of ATM-IPDescription This item refers to the number of contexts that the VMGW successfully establishes after adding an ATM termination and an IP termination to the contexts under the control of the MSC server.Unit NoneMeasurement Point The 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. The statistics can be used to estimate the status of ATM-IP calls. Figure 6-52 Number of context of ATM-IP MGC MGW ADD.REQ(IP) ADD.RESP ADD.REQ(ATM) ... ADD.RESP ... A SUB.REQ SUB.RESPMeasurement Types Average sampling typeFormula Result = Total number of ATM-IP contexts6.2.11 Number of Context of ATM-ATMDescription This item refers to the number of contexts that the VMGW successfully establishes after adding two ATM terminations to the contexts under the control of the MSC server.6-46 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  47. 47. UMG8900Performance Metrics Reference 6 No. of Virtual Media GatewayUnit NoneMeasurement 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. The statistics can be used to estimate the status of ATM-ATM calls. Figure 6-53 Number of context of ATM-ATM MGC MGW ADD.REQ(ATM) ADD.RESP ADD.REQ(ATM) ... ADD.RESP ... A SUB.REQ SUB.RESPMeasurement Types Average sampling typeFormula Result = Total number of ATM-ATM contexts6.2.12 Total MPTY Context SucceededDescription This item refers to the total number of multiparty service (MPTY) contexts that the VMGW successfully establishes under the control of the MSC server. The MPTY service includes the MPTY call service and MPTY conference service. The MPTY context has audio mixing resources.Unit NoneMeasurement Point The VMGW generates new contexts under the control of the MSC server. The number of MPTY contexts is added by one when the CMU successfully creates an MPTY context. The statistics can be used to estimate the status of MPTY calls.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-47
  48. 48. UMG89006 No. of Virtual Media Gateway Performance Metrics Reference Figure 6-54 Total MPTY context succeeded MGC MGW ADD.REQ ADD.RESP ADD.REQ ADD.RESP ADD.REQ ADD.RESP ... A SUB.REQ SUB.RESPMeasurement Types Average sampling typeFormula Result = Total number of MPTY contexts6.2.13 Peak of the Number of MPTY ContextDescription This item refers to the maximum number of multiparty service (MPTY) contexts in a measurement period.Unit NoneMeasurement Point The VMGW generates or releases the context under the control of the MSC server. The CMU updates the number of MPTY context when generating and releasing an MPTY context. The MGW counts the average number of current MPTY contexts in the measurement period. The statistics can be used to estimate the status of the current MPTY calls.6-48 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  49. 49. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-55 Peak of the number of MPTY context Mpty Context NUM MAX Context Num TMeasurement Types Average sampling typeFormula Result = Maximum number of MPTY contexts in a measurement period6.2.14 Average of the Number of MPTY ContextDescription This item refers to the average number of multiparty service (MPTY) contexts in a measurement period.Unit NoneMeasurement Point The VMGW generates or releases the context under the control of the MSC server. The CMU updates the number of MPTY contexts when generating and releasing an MPTY context. The MGW counts the average number of MPTY contexts in the measurement period. The statistics can be used to estimate the status of the current MPTY calls.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-49
  50. 50. UMG89006 No. of Virtual Media Gateway Performance Metrics Reference Figure 6-56 Average of the number of MPTY context Performance MGW Management System Create a task Average number of MPTY contexts End of period 1 Average number of MPTY contexts End of period 2Measurement Types Average sampling typeFormula Result = Total number of MPTY contexts in a measurement period/Measure period (s)6.2.15 Number of Contexts with Call LossDescription This item refers to the number of contexts where the call establishment fails due to certain reasons, among the contexts generated by the VMGW under the control of the MGC.Unit NoneMeasurement Point The VMGW generates contexts under the control of the MSC server. For contexts where the call establishment fails due to certain reasons, the CMU releases these contexts and adds the number of contexts with call loss. The statistic can be used to estimate the call loss status.6-50 Huawei Technologies Proprietary Issue 01 (2007-07-26)
  51. 51. UMG8900Performance Metrics Reference 6 No. of Virtual Media Gateway Figure 6-57 Number of contexts with call loss MGC MGW ADD.REQ ADD.RESP ... Call loss is generated. A SUB.REQ SUB.RESPMeasurement Types Average sampling typeFormula Result = Total number of contexts with call loss6.2.16 Number of Other Successfully Released ContextsDescription This 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 the VMGW under the control of the MGC. This item refers to contexts with only one termination and used for auditing.Unit NoneMeasurement Point The 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 adds the number of successfully released contexts when releasing the contexts. The statistics can be used to count calls of which the contexts are not commonly used.Issue 01 (2007-07-26) Huawei Technologies Proprietary 6-51
  52. 52. UMG89006 No. of Virtual Media Gateway Performance Metrics Reference Figure 6-58 Number of other successfully released contexts MGC MGW ADD.REQ ADD.RESP ... SUB.REQ SUB.RESP AMeasurement Types Average sampling typeFormula Result = Total number of other successfully released contexts6.3 Number of Terminations Occupied by Context This 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. The measure 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 Termination6.3.1 Occupied Peak of IP TerminationDescription This item refers to the maximum number of occupied IP terminations generated by the VMGW under the control of the MSC server in a measurement period.Unit None6-52 Huawei Technologies Proprietary Issue 01 (2007-07-26)

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