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Fostering of standard technologies by Testbed environment in China, Japan and Korea

Fostering of standard technologies by Testbed environment in China, Japan and Korea. CJK Testbed Ad-hoc Group ( CCSA , TTA and TTC). Global Standards Collaboration (GSC) GSC-15. Objectives of the CJK Testbed.

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Fostering of standard technologies by Testbed environment in China, Japan and Korea

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  1. Fostering of standard technologies by Testbed environment in China, Japan and Korea CJK Testbed Ad-hoc Group (CCSA, TTA and TTC) Global Standards Collaboration (GSC) GSC-15

  2. Objectives of the CJK Testbed • Demonstrate usefulness of standard or pre-standard technologies over the region-wide network environment among China, Japan, and Korea and contribute results and experiences to international standard activity to make standard specifications more practical. • Collect best use cases and practices of standard technologies • Prove and improve concepts of ongoing technologies in draft recommendations Korea China Japan Vendors Vendors Vendors Service Providers Operators Service Providers Operators Service Providers Operators Test-bed in China Test-bed in Japan Testbed in Korea

  3. Challenges andoutputs The collaborative study framework has major advantages when conducting practical studies and developments of ITU Recommendations based on the relevant mid-and-long term leading edge trends in NGN technology. Several testing software tools and preliminary testing environments have been shared among CJK countries(SDOs). A part of those outputs is available to the people who interested in the similar studies and the investigations of specifications of ITU Recommendation provided as the out puts of our CJK Testbed studies. • A current best practice and a practical proof of the specifications of ITU Rec. • Shorten the lead times to develop the NGN system toward the market.

  4. Next steps • If there are other SDOs who promote standard technologies by use of the Testbed style environment, CJK would like to share experiences. • If experts in other SDOs are interested in tools of CJK Testbed, CCSA, TTA, and TTC are happy to talk with them.

  5. Subjects of the studies In order to investigate the technology integral to the worldwide services under the interconnected environment of the multiple NGNs owned by each country, we have been conducting both testbedstudies and standardization studies in ITU-T involving China, Japan and Korea(CJK). Study 1: CCSA(CATR), TTA(ETRI), TTC(KDDI, OKI) Measurement and Evaluation of the quality of service (QoS) and the application layer quality (QoE; Quality of Experience) in order to control streams of the FMBC (Fixed Mobile & Broadcast Convergence) services based on the MPM (Management of Performance Measurement) functions. Study 2: CCSA(CATR), TTA(ETRI), TTC(NTT) To achieve requirements for transport stratum on an NGN, a functionally distributed transport networking (FDTN) architecture which divides the functions of transport stratum into the control element (CE), the forwarding element (FE) and the service element (SE) has been studied.

  6. Achievement of Study 1 A new recommendation ITU-T Y.2173 which defines specifications of the MPM functions was consented(SG13) based on the study 1. Overall architecture for NGN performance management

  7. Achievement of Study 2 A new supplement Y Sup.11 which describes application scenarios of the iSCP (independent scalable control plane, equivalent to FDTN) was approved based on the study 2. CE: Control Element SCE: Service Control Element FE: Forwarding Element SPE: Service Processing Element VNE: Virtual Network Element ME: Management Element

  8. Thank you for your attentions. CJK Testbed Ad-hoc Group

  9. Supplementary Slides

  10. Network configuration of MPM study(Study 1)

  11. Testing scenarios of MPM study(Study 1) Performance Evaluation with RTP/RTCP-based Measurement extensions using the MPM (Management of Performance Measurement) functions. Supporting of multicast/unicast streams for Voice, Video, Audio and Concurrent (Multimodal)services • Scenario6-1: Performance evaluation of Network Segments • Scenario6-2: Performance evaluation of multimedia servicesamong CPEs • Local testing of MPM and CPE-to-CPE performance evaluations • Scenario 6-3: Performance evaluation of multimedia services with two MPMs • CPE – MPM1 – MPM2 – CPE performance evaluations • Scenario 6-4: Performance evaluation of multimedia service with three MPMs • CPE – MPM1 – MPM2 – MPM3 – CPE performance evaluations • Scenario 7: Testing of RACF and RTP/RTCP-based MPM Interactions

  12. Schedule of MPM study(Study 1)

  13. Service Control Functions Service Stratum Transport Stratum Rs RACF Network Attachment Rd Control Functions Other Other PD - FE Ri Ru Rp Rt Management for NGNs NGNs R m Performance Measurement TRC - FE Rh Rw Rn Rc CGPE - FE TRE - FE PE - FE CPN Transport Functions Achievement of Study 1 (Cont’d) A new reference point called Rm between RACF and MPM in Rec. Y.2111 was added based on the study 1.

  14. Achievement of Study 1 (Cont’d) Development of a commercial MPM equipment based on Study1. • Traffic Monitoring/Analysis between separated Network using MPM functionality • Transcodec between Terminals in different Network Terminal B (ITU-T G.711) Korea Japan China Terminal A (ITU-T G.722) Terminal C (ITU-T G.711) MPM equipment (Transcodec and Traffic Monitoring/Analysis)

  15. Network configuration of FDTN study(Study 2) Control plane Korea Data plane SE2 CE3 VPN Feasibility test • Normal operation • Topology change • CE failover • SE failover • Characteristics measurement - Re-routing delay - Communication delay - Failover delay FE6 FE7 NCE VPN CE2 China VPN Japan CE1 SE1 FE5 FE1 VPN FE2 VPN FE3 FE4 Data sender Data sender

  16. Research overview of FDTN Study(Study 2) • To achieve requirements for transport stratum on an NGN, we have proposed a functionally distributed transport networking (FDTN) architecture. • Network scalability for growing traffic • Easy to add new transport related services • Easy to control path according to a policy • Control element (CE) is separated from forwarding element (FE) for independent scale up. • Service element (SE) minimize development and introduction time & cost for new services. • CE is separated to achieve service oriented network wide policy routing. AS division is very complex operation Functionally distributed transport network Existing transport network CE CE ★ CE CE CE CE CE CE CE CE FE FE ★ ★ AS3-2 ★ ★ SE FE FE FE FE CE CE ★ ★ AS2 AS3-1 FE FE FE FE FE FE FE FE FE FE FE FE FE FE CE CE CE CE ★ CE FE SE FE ★ ★ FE CE AS１ FE FE ★ FE AS１ All nodes need program upgrade to add new. FE FE FE FE new functions ★

  17. Testing scenarios and schedule of FDTN study(Study 2) • Checking feasibility on FDTN architecture under the international environment to confirm if the architecture can solve the problems of increasing network size on NGN. • Scenario 1 : Preparing and checking for test environments using international lines • Scenario 2 : Basic test for functionality check in CJK testbed between 2 countries • Scenario 3 : Basic test for functionality check in CJK testbed among 3 countries 2008 2009 2010 CJK NGN-WG meeting 12th Japan 3/31-4/2 13th Korea 7/23-7/25 14th Japan 12/10-12/12 15th China 4/8-4/10 16th China 7/22-7/24 17th China 11/16-11/17 18th Korea 4/7-4/9 Scenario 2 (J-K) Test scenario Preliminary experiment Scenario 1 Scenario 2 (C-J) Scenario 3 (C-J-K)

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