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Multicasting is (only) half the Internet

Multicasting is (only) half the Internet. Mar 19, 2006 Yoichi Shinoda JAIST & WIDE shinoda@jaist.ac.jp. The Multicast Spectrum. Unicast. (Broadcast). Overlay Multicast - Bayeux, ALMI, TAG, P2P... -. IP Multicast - PIM-SIM, DVMRP... -. Good for large-scale media distribution, but

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Multicasting is (only) half the Internet

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  1. Multicasting is (only) half the Internet Mar 19, 2006 Yoichi Shinoda JAIST & WIDE shinoda@jaist.ac.jp

  2. The Multicast Spectrum Unicast (Broadcast) Overlay Multicast - Bayeux, ALMI, TAG, P2P... - IP Multicast - PIM-SIM, DVMRP... - Good for large-scale media distribution, but -  large size of routing table - Slow adaptation to changes in routing topology (Long convergence time) Good for file sharing, but -  Limited bandwidth in the first mile -  Large end-to-end delay - Overlay network does not map well on top of the underlying IP networks: * Very costly to network providers * Hard to conduct Traffic Engineering The Ideal Multicast Spectrum X C A S T Overlay Multicast - Bayeux, ALMI, TAG, P2P... - IP Multicast -PIM-SIM, DVMRP... - • Areas for possible research cooperation • Tree construction, Tree Maintenance • (e.g., ALM) • Router-Assisted schemes and • mechanisms (e.g., Active-Net) Good for delay-sensitive & interactive applications, such as VoIP, Video or Multi-media conferences - scalability with respect to the number of groups - rapid adaptation to changes in routing topology - no limited bandwidth in the first mile

  3. I would like to see the contribution of new RG End of Analog surface TV transmission (Japan) IP multicasted TV broadcasting All Digital TV will have ethernet(& tcp/ip) Environment 2006 2007 2008 2010 2011 2009 SGM service Draft-irtf-ssgm-sgm-taxomony, etc Proposed standard Research paper activities SSGM Commercial products and services IRTF RG SSGM IETF WG L3 L5 WG ALM L４ WG OMcast XCAST L3 WG Large testbed accelerates R&D L4 congestion control L5 P2P signaling Host Identity Real time Application StarBED , AnyBED ,NetBED PlanetLab GENI

  4. Candidate subject on SSGM Draft-irtf-ssgm-sgm-taxonomy-xx.txt Maintenance cost of proxy Convergence E2E Latency # of recievers ・・・・ Selfish? # of groups IP Multicast ASM SSM XCAST XCAST4 XCAST6 XCAST+ Just an example Overay Mulitcast OMcast Akamai ALM End System Multicast NICE ALMI

  5. R&D acceleration with large testbedsFor example, the StarBED • Internet emulator • 700 PCs, 1500-10000 when VM-mplx’ed • 10Gbps Internet(IPv4/IPv6) Connection • Features • Experimenter can • Configure them in any topology • {with,without} Internet connection • Automation tools • Install/Configure OS automatically • Configure topology for various scenarios StarBED http://www.starbed.org Possible Methodology + StarBED Overlay netwroking Like Planetlab/GENI Acceleration of SSGM-RG activity

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