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Getting routers out of the core: Building an optical wide area network with "multipaths"

Abstract : We propose an all-optical networking solution for a wide area network (WAN) based on the notion of multipoint-to-multipoint lightpaths that, for short, we call "multipaths". A multipath concentrates the traffic of a group of source nodes on a wavelength channel using an adapted MAC protocol and multicasts this traffic to a group of destination nodes that extract their own data from the confluent stream. The proposed network can be built using existing components and appears less complex and more efficient in terms of energy consumption than alternatives like OPS and OBS. The paper presents the multipath architecture and compares its energy consumption to that of a classical router-based ISP network. A flow-aware dynamic bandwidth allocation algorithm is proposed and shown to have excellent performance in terms of throughput and delay.
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Conference papers
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Contributor : James Roberts Connect in order to contact the contributor
Submitted on : Friday, January 11, 2013 - 6:12:25 PM
Last modification on : Friday, January 21, 2022 - 3:21:58 AM

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  • HAL Id : hal-00773181, version 1
  • ARXIV : 1110.1245


Davide Cuda, Raluca-Maria Indre, Esther Le Rouzic, James Roberts. Getting routers out of the core: Building an optical wide area network with "multipaths". ONDM 2012 - 16th International Conference on Optical Network Design and Modeling, Apr 2012, Colchester, United Kingdom. pp.1-19. ⟨hal-00773181⟩



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