On the cost, latency, and bandwidth of lightness data center network architecture

F. Yan, W. Miao, H.J.S. Dorren, N. Calabretta

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

13 Citations (Scopus)
2 Downloads (Pure)


We investigate and compare the cost, bandwidth, and latency of the LIGHTNESS data center network (DCN) architecture adopting optical switching technologies with current DCN architectures based on electrical switching technologies. The studies include the cost and latency models of all the required opto-electronics (electronic switches, transceivers, cables) and optical (circuit and packet switches) components to build the DCN architectures. Numerical results show that the LIGHTNESS DCN architecture has the lowest cost due to the huge reduction of expensive transceivers. Moreover, the flat LIGHTNESS DCN architecture outperforms the multi-stage electronic DCN architecture in terms of latency, while the bisection bandwidth can be dynamically and flexibly re-configured according to the required applications
Original languageEnglish
Title of host publicationProceedings of Photonics in Switching (PS 2015), 22-25 September 2015, Florence, Italy
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Print)978-1-4799-8821-1
Publication statusPublished - 2015
EventInternational Conference on Photonics in Switching, PS 2015 - Convitto della Calza , Florence, Italy
Duration: 22 Sep 201525 Sep 2015


ConferenceInternational Conference on Photonics in Switching, PS 2015
Abbreviated titlePS 2015
Internet address


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