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CJK test-bed study - progress report -

CJK test-bed study - progress report -. 17th CJK NGN-WG 200 9 . 11.16-17 Test-bed Ad-hoc Group Hideaki YAMADA (TTC) hd-yamada@kddi.com. Scenario 6-1 : Performance evaluation of Network Segments Scenario 6-2 : Performance evaluation of MoIP service among CPEs

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CJK test-bed study - progress report -

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  1. CJK test-bed study -progress report- 17th CJK NGN-WG 2009.11.16-17 Test-bed Ad-hoc Group Hideaki YAMADA (TTC) hd-yamada@kddi.com

  2. Scenario6-1: Performance evaluation of Network Segments • Scenario6-2: Performance evaluation of MoIP serviceamong CPEs • Local testing of MPM (Provided by KDDI R&D Labs.) • CPE-to-CPE performance evaluation • Scenario 6-3: Performance evaluation of MoIP service with two MPMs • CPE – MPM1 – MPM2 – CPE performance evaluation • Scenario 6-4: Performance evaluation of MoIP service with three MPMs • CPE – MPM1 – MPM2 – MPM3 – CPE performance evaluation • Scenario 7: Testing of RACF and RTP/RTCP-based MPM Interactions Study scenarios KDDI R&D Labs..

  3. Progress of the study • Phase I: 2006 3rd/4th Quarter (Completed) • Network Connectivity • Scenario 2 and 4 only (2 CS and 2 domains) • Phase II: 2007 1st/2nd Quarter(Completed) • Scenario 1, 3 (simpler version of 2 and 4, single domain) and 5 CJK NGN Test-bed • Phase IV: 2008 3rd ~ 20102nd Quarter • Completed • Performance evaluations; Scenarios 6-1, 6-2 and 6-3 • On going / In preparation • Performance evaluations using the SBC-based MPM devices • IMS-Call Server interworking for the MoIP services • Coming Tests : Scenario 6-4and7 • RACF(Admission control device) - MPM communications • Evaluations of the video transmissionquality KDDI R&D Labs..

  4. System configuration1 SBCbasedMPM RACF (Admissioncontroldevice) MPM機器:KDDI研究所提供 KDDI R&D Labs..

  5. System configuration2 MPM機器:KDDI研究所提供 KDDI R&D Labs..

  6. Performance measurement KDDI R&D Labs..

  7. Next steps • Upgrade of the CS platform so that other tests can be available including PSTN interworking, IAD, Access Gateway, RACF support. • More discussions on QoS capability deployment for transport (e.g., MPLS) • Preparation for the testing • Test-case specification, system setup, testing scenarios • Expansions of performance monitoring evaluation system (SBC based MPM system) • Finding collaboration opportunities with other related testing programs (e.g., BcN test-bed, CATR studies) KDDI R&D Labs..

  8. Study using the SBC based MPM(byOKI) Given the situation of interconnectivity among various NGN networks,MPM will become a very important node for traffic observation.We have been investigating the possibility of analyzing network quality by observing traffic at MPM. Detection of the network anomaly through traffic analysis at MPM with the following steps. #1 Create Network anomaly by intentionally generating instability to wireless link #2 Collect packets capturing data at MPM (Japan) These packets might contain not only our experiment traffic but also various traffic in CJK test-bed. #3 Extract the packets that relates to network anomaly through our analysis. #4 Detect network anomaly point i.e. instability of wireless link in Japan <Previous result shown at 16h CJK Meeting> <Current Status> OKI’s system KDDI R&D Labs..

  9. Definition of the Segment of the evaluations CPE – MPM1 – MPM2 – MPM3 – CPE (segment: MPM-to-MPM, MPM-to-CPE) 中国　　　　　　　 日本　　　　　　　韓国　 Note: MPM stands for Management of Performance Measurement for NGN. It is based on the ITU-T Recommendation Y.2173. MPM used throughout this document is a system realized based on the capabilities defined in ITU-T Y.2173. KDDI R&D Labs..

  10. The RTP/RTCP based passive measurement • Delay and delay-variation are important to ral-time applications such as VoIP and videostreaming. Real time protocol, [IETF RFC 3550]) is a transport layer protocol for real-time applications. RTP is designed to be independent of transport or network layer protocols. An RTP packet has time-stamp and sequence-number fields in its header. A passive collection system which resides in either TEs or BGs can evaluate packet loss and delay variation. RTCP is an optional control protocol for RTP. Furthermore, RTCP extensions, such as the RTCP‑XR (RTP control protocol extended reports, [b-IETF RFC 3611]) are also optional control protocols for RTP. Participating TEs exchange RTCP and RTCP-XR packets. In a RTCP and RTCP-XR packet, performance metrics of its application services are reported. TEs also are able to evaluate rough round-trip delay with these packets. Figure Configuration of the measurement points. KDDI R&D Labs..

  11. 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 Standardization RACF and MPM communications (Rec. Y.2111 Revision 2) A new reference point called Rm between RACF and MPM in Rec. Y.2111 was added. Several specifications of Rm are based on Rc ones. Figure Generic resource and admission control functional architecture. KDDI R&D Labs..

  12. Thank you for your kind attentions. Q&A This work is partly supported by the National institute of Information and Communications Technology (NICT). KDDI R&D Labs..

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