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DOCUMENT #: GSC15-GTSC8-15
FOR: Presentation
SOURCE: CJK Test-bed Ad-hoc Group(CCSA, TTA and TTC)
AGENDA ITEM: GTSC 4.1 NGN
CONTACT(S): CCSA: [email protected], [email protected],TTA: [email protected],TTC: [email protected], [email protected], [email protected], [email protected]
Fostering of standard technologies by Testbed Fostering of standard technologies by Testbed environment in China, Japan and Koreaenvironment in China, Japan and Korea
CJK Testbed Ad-hoc Group(CCSA, TTA and TTC)
Global Standards Collaboration (GSC) GSC-15
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 technologiesProve and improve concepts of ongoing technologies in draft recommendations
Objectives of the CJK Testbed
China Japan Korea
Test-bed in China
Service Providers
Vendors
Operators
Testbed in Korea
Service Providers
Vendors
Operators
Test-bed in Japan
Service Providers
Vendors
Operators
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.
Challenges and outputs
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.
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.
Subjects of the studiesIn 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 testbed studies 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.
Achievement of Study 1A 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
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 CE SCE SCE
FE FE SPE SPE
Data Plane
VNE
Control Plane
ME
Management Plane
CE: Control ElementSCE: Service Control ElementFE: Forwarding ElementSPE: Service Processing ElementVNE: Virtual Network
ElementME: Management Element
Thank you for your attentions.Thank you for your attentions.
CJK Testbed Ad-hoc Group
Supplementary Slides
9
Network configuration of MPM study(Study 1)
CJKTest-bed
CJKTest-bed
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) servicesScenario 6-1: Performance evaluation of Network SegmentsScenario 6-2: Performance evaluation of multimedia services among CPEs Local testing of MPM and CPE-to-CPE performance evaluationsScenario 6-3: Performance evaluation of multimedia services with two MPMs CPE – MPM1 – MPM2 – CPE performance evaluationsScenario 6-4: Performance evaluation of multimedia service with three MPMs CPE – MPM1 – MPM2 – MPM3 – CPE performance evaluationsScenario 7: Testing of RACF and RTP/RTCP-based MPM Interactions
Scenario 6-1: Performance evaluation of Network SegmentsScenario 6-2: Performance evaluation of multimedia services among CPEs Local testing of MPM and CPE-to-CPE performance evaluationsScenario 6-3: Performance evaluation of multimedia services with two MPMs CPE – MPM1 – MPM2 – CPE performance evaluationsScenario 6-4: Performance evaluation of multimedia service with three MPMs CPE – MPM1 – MPM2 – MPM3 – CPE performance evaluationsScenario 7: Testing of RACF and RTP/RTCP-based MPM Interactions
Schedule of MPM study(Study 1)
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.
RACF
Service Control Functions
Network Attachment Control Functions
Other N
GN
sO
ther NG
NsTRC-FE
Rn
Service Stratum
Transport Stratum
PE-FE
PD-FE
TRE-FE
Transport Functions
Rc Rw
Rt
Rs
Ri
Rd
RpRu
CGPE-FE
CPN
RmManagement for Performance Measurement
Rh
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
Japan
Korea
Terminal A(ITU-T G.722)
Terminal C(ITU-T G.711)
MPM equipment(Transcodec and Traffic Monitoring/Analysis)
China
Terminal B(ITU-T G.711)
Network configuration of FDTN study(Study 2)
Japan
Korea
China
CE1
NCE
FE1 FE2
FE6
SE2
FE3
VPN
VPN
FE7
FE4
FE5
VPN
CE3
VPN
VPNCE2
SE1
Control plane
Data plane
Data senderData sender
Feasibility test
• Normal operation
• Topology change
• CE failover• SE failover• Characteristic
s measurement
- Re-routing delay - Communication
delay - Failover delay
Feasibility test
• Normal operation
• Topology change
• CE failover• SE failover• Characteristic
s measurement
- Re-routing delay - Communication
delay - Failover delay
Research overview of FDTN Study(Study 2)
Existing transport networkExisting transport network Functionally distributed transport networkFunctionally distributed transport network
CE
FE
CE
FE
CE
FE
CE
FE
CE
FE
FE
FE
CE
FE
FE
FE
CEFE
CEFE
CEFE
CEFE
CEFE
CEFE
CEFE
CEFE
AS １
AS2 AS3-1
CE
FEFE
FE
CE
FEFE
FE
CE
FEFE
FE
CE
FEFE
FE
AS １
AS division is very complex operation
All nodes need program upgrade to add new.new functions
★★
★★ ★★
★
★ ★
★
SE★
SE★
AS3-2
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.
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
20102008
CJKNGN-WGmeeting
Testscenario
2009
12thJapan
3/31-4/2
13thKorea
7/23-7/25
14thJapan
12/10-12/12
15thChina
4/8-4/10
16thChina
7/22-7/24
17thChina
11/16-11/17
18thKorea4/7-4/9
Preliminaryexperiment
Scenario 1 Scenario 2(J-K)
Scenario 2(C-J)
Scenario 3(C-J-K)
