Shanghai Jiao Tong University, China 2007/3/25 OFC, Anaheim, CA, USA Regional Multicasting Testbed in China Weisheng Hu 1) State Key Lab of Advanced Optical Communication Systems and Networks (Shanghai Jiao Tong University), 2) Task Force of 3TNET, 863 Program, Shanghai , China

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Outline 1.Motivation 2.The Overlay Model 3.Prototype Demonstration 4.Field Trial in 3TNET 5.Conclusions

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Motivation: Broadband Applications We are looking for “killer applications”. General consensus is multimedia services for communication and entertainment. ENTERTAINMENT COMMUNICATION VOD TV Broadcast/ Interactive On-line Music or download , chat, and instant message Unified messaging IP based/Telephony Gaming More bandwidth Multicasting ‘Always on’ More security Better availability Strict quality of service Requirements: Video Communication

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Challenges Multicast is critical for many applications: –Content distribution, IPTV, HDTV…… –Multicast for bandwidth efficiency Existing solutions: –xDSL: for “broadband” at ~2Mb/s mainly on Internet, not enough for DTV/HDTV. –Cable TV: uni-directional (broadcasting) without interaction. –IP network: efficient and flexible bandwidth, but taking risks for mission-critical operations (e.g. TV) at reliable quality. 3TNET: A national project of China during

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Outline 1.Motivation 2.The Overlay Model 3.Prototype Demonstration 4.Field Trial in 3TNET 5.Conclusions

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Optical multicast vs. IP multicast IP multicast: Flexible group management Not scalable in routing and address management Lack of QoS and TE support Security issues Optical multicast: No store and forward delay Coarse granularity Enhanced virtual connectivity Improved optical network performance

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Our scheme : to integrate both merits IP multicast: Flexible group management Not scalable in routing and address management Lack of QoS and TE support Security issues Optical multicast: No store and forward delay Coarse granularity Enhanced virtual connectivity Improved optical network performance To Leverage the merits of efficient IP multicast and reliable high-speed optical multicast in a multicasting network. To provide carrier-class large-scale reliable live services (e.g.DTV/HDTV) to end users. To provide carrier-class large-scale reliable live services (e.g.DTV/HDTV) to end users.

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China The Overlay Model Optical Multicast in the core. IP Multicast at the edge. Optical Multicast (core) Optical Multicast (core) IP multicast (edge) End users (access) Overlay Multicast Network

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Multicast Flow Aggregation SDH/SONET (Mb/s) Ethernet (Mb/s) Gb/s IP Multicast Flows Bandwidth (Mb/s) VOD~2 DTV~6 HDTV~25 Yi Zhu et al., JSAC, June 07 Great Gap between one light tree and one flow! Multicast Flow Aggregation can significantly reduce the number of light trees in the core.

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Outline 1.Motivation 2.The Overlay Model 3.Prototype Demonstration 4.Field Trial in 3TNET 5.Conclusions

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Prototype Demonstration Data Plane: Mc-OXC Weisheng Hu et al., ECOC’03 (Invited) Weiqiang Sun et al., OFC’05 Xueqing Wei et al., ECOC’05 Yi Zhu et al. Globecom’05 Control Plane: Mc-ASON NNI and UNI extensions Mc-IP Service Plane: Scheduling and Aggregation Management Plane: Network and Service

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Performance Measurement Delay and jitter vs. link load Overlay Mc-IP over Mc-ASON has lower delay and jitter than pure Mc-IP does. Weiqiang Sun et al., OFC’05

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Control Plane Extension UNI P2MP Object extended for dynamic P2MP. Xueqing Wei et al., ECOC’05 Operations: Setup Teardown Graft Prune NNI: Compatible with IETF (RFC4461 and several drafts). UNI: Submitted a document to OIF in Signaling trace

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Signaling Experimental Results No. Tree/ Path ID Operation Notation Time (msec) 11 Setup{0, 1, {3,4}} Setup{0, 1, {2}} Grafting{2, 1, {4}} Pruning{1, 1, {3}} Teardown{1, 1, {4}} 23 Test cases and operation time Xueqing Wei et al., ECOC’05

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Service Scheduling Yi Zhu et al., Globecom’05 IP multicasting group management Dynamic P2MP light-trees Fast TV channel zapping

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Interim Summary to Prototype Demo Merits of Overlay Multicasting Network (edge Mc-IP over core Mc- ASON): –Better performance with lower delay and jitter. –More scalable with reduced Multicast state. –More reliable and improved QoS. –Better survivability. –Could be used in 3TNET Field Trial

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Outline 1.Motivation 2.The Overlay Model 3.Prototype Demonstration 4.Field trial in 3TNET 5.Conclusions

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China 3TNET Project A national project at ~USD30m funded by “863” Program of China. Goals: to build a high performance trial network to support large-scale concurrent streaming media and interactive multimedia broadband service (DTV/DHTV) in Yangzte River Delta centered at Shanghai Initiation Specification Development 2005 Field Trail 2006 …

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Participants Carriers and SPs: China Telecom, SiTV, CETV, B-Star Venders: Huawei, ZTE, Fiberhome, Harbor, Amoi, Zoom Universities: IEU, PKU, SJTU, Tsinghua, Fudan, USTC, BUPT, ZJU, SEU Institutes: CAS (IoA), RITT, ABS Task Force: five members, including SJTU

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China 3TNET: A Layered View Application Supporting Environment (Proprietary Middleware) Routing Application Transport/ Switching Core Metro Access Tb/s DWDM Tb/s ASON Tb/s Router IP DTV/HDTV e-Shanghai 3TNet Wu Jiangxing, APOC’05 (plenary)

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China TV Station: DTV and HDTV Headend DVB-IP: to provide 115 digital television channels (DTV) at ~6Mb/s and 1 HDTV (high definition TV) at ~25Mb/s. SJTU 1) To Network TVs

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Mc-ASON: P2MP 2) To ASON

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Mc-ASON/GMPLS Benefits: –Fast provisioning –Easier network operation –Higher network reliability –Simpler planning and design –Scalability Huawei OSN9500 Fiberhome FonsWeaver780 –Multicasting capability –Multi-vendor inter-operability

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Multicast Convergence IP Network 10GE GE FE EMD: Ethernet-based Multiplexer and Demultiplexer ACR: Access Convergence Router RIU: Remote Interface Unit End users: ~41 Mb/s per each 3) To IP

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China ACR in 3TNET ACR (Access Convergence Router) –Highly centralized access router. –For tree topology in access networks. Key features of ACR: –Multiple rate flow classification and control. –Mixed usage of private and public addresses. –Greater than 2000 dynamic multicast trees. ACR Huawei

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Field Trial in Yangtze River Delta Yangtze River Delta: centered at Shanghai, including Hangzhou, and Nanjing. Yangtze River

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China End Users and Access Zones Shanghai –SiTV station: 116 DTV Channels (including HDTV) –B-Star: Households –China Telecom: 1000 FTTH Households –SJTU: 5000 users Hangzhou –ZJU: 5000 users Nanjing –SEU: 5000 users

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Inter domain Multicasting Test Cases and times J Wang, OFC2007, OMJ3 OperationNotationTime (msec) Setup{HW-4, (FH-3, FH-1)}271 Pruning{HW-4, (FH-3)}208 Grafting{HW-4, {FH-3, FH-1}}222

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Outline 1.Motivation 2.The Overlay Model 3.Prototype Demonstration 4.Field Trial in 3TNET 5.Conclusions

2007/3/25 OFC, Anaheim, CA, USA Shanghai Jiao Tong University, China Conclusions 3TNET is a circuit- and packet-switched hybrid integrated network to support large- scale inactive and live streaming media. A large-scale field trial was carried out in Yangtze River Delta centered at Shanghai. An Overlay Mc-IP over Mc-ASON with GMPLS extension is field trialed to deliver 115 DTVs at ~6Mb/s and 1 DHTV at ~25Mb/s to ~30000 users. Much more users will be accessed into the 3TNET in the next five years.

Shanghai Jiao Tong University, China 2007/3/25 OFC, Anaheim, CA, USA Thank you!