%0 Conference Proceedings %T Simplifying Optical DCN Fabrics with Blocking Space Switching and Wavelength-Constrained WDM %+ National Technical University of Athens [Athens] (NTUA) %+ Nokia Bell Labs [Stuttgart] %A Kontodimas, Konstantinos %A Christodoulopoulos, Kostas %A Varvarigos, Emmanouel %Z Part 1: Regular Papers %< avec comité de lecture %( Lecture Notes in Computer Science %B 23th International IFIP Conference on Optical Network Design and Modeling (ONDM) %C Athens, Greece %Y Anna Tzanakaki %Y Manos Varvarigos %Y Raul Muñoz %Y Reza Nejabati %Y Noboru Yoshikane %Y Markos Anastasopoulos %Y Johann Marquez-Barja %I Springer International Publishing %3 Optical Network Design and Modeling %V LNCS-11616 %P 286-298 %8 2019-05-13 %D 2019 %R 10.1007/978-3-030-38085-4_25 %K Time-wavelength-space division multiplexing %K Blocking design %K Slotted and synchronous operation %K Dynamic resource allocation %K scheduling %K Matrix decomposition %Z Computer Science [cs] %Z Computer Science [cs]/Networking and Internet Architecture [cs.NI]Conference papers %X The introduction of all-optical switching in data center interconnection networks (DCN) is key to addressing some of the shortcomings of state-of-the-art electronic switched solutions. Limitations in the port count, reconfiguration speed and cost of optical switches, however, require novel optical switching and DCN designs. We present the concept of a simplified DCN fabric that relies on a lean optical switch design of limited but scalable functionality that offers high reconfiguration speeds, real-time scheduling, efficient control and low equipment cost. To achieve these objectives, the proposed architecture relaxes the usual non-blocking switching requirements but opts for switching modules that are constrained in terms of the achievable space and wavelength input-output configurations. We analytically compare the functionality and complexity of the simplified fabric with those of a non-blocking switch. We evaluate the throughput performance of the simplified DCN fabric and compare it to that of other fabrics with a different level of functionality and centralized control. %G English %Z TC 6 %Z WG 6.10 %2 https://inria.hal.science/hal-03200671/document %2 https://inria.hal.science/hal-03200671/file/484327_1_En_25_Chapter.pdf %L hal-03200671 %U https://inria.hal.science/hal-03200671 %~ IFIP-LNCS %~ IFIP %~ IFIP-TC %~ IFIP-WG %~ IFIP-TC6 %~ IFIP-LNCS-11616 %~ IFIP-ONDM %~ IFIP-WG6-10