Tcp-like congestion control for layered multicast data transfer：（Tcp-like分层多播数据传输的拥塞控制）.pdfVIP

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2017-06-30 发布于浙江
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Tcp-like congestion control for layered multicast data transfer：（Tcp-like分层多播数据传输的拥塞控制）.pdf

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Tcp-like congestion control for layered multicast data transfer：（Tcp-like分层多播数据传输的拥塞控制）

TCP-like Congestion Control for Layered Multicast Data Transfer Lorenzo Vicisano, Jon Crowcroft Dept. of Computer Science, University College London, Gower Street, London WC1E 6BT, UK email: L.Vicisano,J.Crowcroft @cs.ucl.ac.uk, Luigi Rizzo Dip. di Ing. dell’Informazione, Universita` di Pisa, via Diotisalvi 2 – 56126 Pisa (Italy), email: l.rizzo@iet.unipi.it Abstract— We present a novel congestion control algorithm suitable for ceivers dynamically choose the appropriate data rate. use with cumulative, layered data streams in the MBone. Our algorithm In this paper we will describe a receiver driven congestion behaves similarly to TCP congestion control algorithms, and shares band- width fairly with other instances of the protocol and with TCP ﬂows. It is control algorithm which is TCP-friendly and suitable for use in entirely receiver driven and requires no per-receiver status at the sender, in the Mbone. We support different bandwidths by using a layered order to scale to large numbers of receivers. It relies on standard functional- organization of data, and letting receivers adapt to the available ities of multicast routers, and is suitable for continuous stream and reliable bandwidth by joining to one or more multicast groups. Each re- bulk data transfer. In the paper we illustrate the algorithm, characterize its response to ceiver takes decisions autonomously, but techniques are used to losses both analytically and by simulations, and analyse its behaviour us- synchronise receivers behind the same bottleneck (and belong- ing simulations and experiments in real networks. We