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Communication Dans Un Congrès Année : 2008

Networks for high-bandwith services combining photonic circuit cross-connects with packet switches

Résumé

We describe the dimensioning and benchmarking of packet transport networks with aggregated link capacities up to the Tbit/s range, using a circuit-switching (cross-connect) infrastructure below packet-switching nodes. The different network solutions to be evaluated are designed to carry large numbers of high-definition video and other data streams, with upper bounds on packet latency and packet loss rate for all flows. Trends of evolution are analyzed, based on a performance and cost comparison of several node architectures with different associated transport technologies (packet and circuit layers). Simulations of packet-switch nodes under pseudo-self-similar traffic, extraction of analytical models for latency and loss, end-to-end best path selection, and constrained optimization of crossconnect and packet-switch resources are combined to derive the dimensioning of all the network elements. As a result of this study, photonic cross-connects associated with carrier-grade Ethernet switches appear as the most efficient architectures, thanks to cost savings for transit traffic. Single-layer solutions involving for example only packet-switch routers turn out to be more expensive.
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Dates et versions

hal-00764394 , version 1 (12-12-2012)

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Citer

Georg Post, Jean-Michel Houssin, Ludovic Noirie, Pierre Peloso. Networks for high-bandwith services combining photonic circuit cross-connects with packet switches. 5th International Conference on Broadband Communications, Networks and Systems, 2008 (BROADNETS'08), Sep 2008, London, United Kingdom. pp.274-281, ⟨10.1109/BROADNETS.2008.4769088⟩. ⟨hal-00764394⟩
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