ABSTRACT
We explore the vision of an all-wireless inter-rack datacenter fabric. Such a fabric, if realized, can offer operator the ability to dynamically reconfigure the network topology to adapt to future traffic demands while eliminating concerns related to cabling complexity. A key enabler for our vision is the use of free space optical (FSO) technology which, in contrast to traditional wireless/RF technologies, has lower interference footprint, can support longer range, and offers higher bandwidths. While FSO is an enabler, there are several significant practical challenges that need to be addressed before this vision turns into reality. We demonstrate the early promise of addressing these challenges and the potential benefits that this offers in comparison to state-of-the-art datacenter architectures.
- http://www.fsona.com/product.php?sec=2500e.Google Scholar
- http://discountechnology.com/LightPointe-FlightStrata-G-Optical-Gigabit-Link.Google Scholar
- http://www.corporatearmor.com/product_info.php?source=GBUS&products_id=6340&gclid=COTa4cauurgCFcOe4AodZgYA5g.Google Scholar
- http://kentoptronics.com/switchable.html.Google Scholar
- http://www.nanowerk.com/news/newsid=24852.php#ixzz2ZAueSvFq.Google Scholar
- http://www.colfaxdirect.com/store/pc/viewPrd.asp?idproduct=1377.Google Scholar
- http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6406/product_bulletin_c25-705278.html.Google Scholar
- http://www.corporatearmor.com/product_info.php?source=GBUS&products_id=5198&gclid=CNPrh9DKvLgCFcee4Aod4j4AVQ.Google Scholar
- http://conferences.sigcomm.org/hotnets/2009/session1.txt. HotNets-VIII, Scribe Notes.Google Scholar
- Avoidable mistakes that compromise cooling perfomance. http://www.mm4m.net/library/Avoidable\_Mistakes\_that\_Compromise\_Cooling\_Perfomance.pdf.Google Scholar
- M. Al-Fares, A. Loukissas, and A. Vahdat. A scalable, commodity data center network architecture. In SIGCOMM, 2008. Google ScholarDigital Library
- E. Ciaramella, Y. Arimoto, G. Contestabile, M. Presi, A. D'Errico, V. Guarino, and M. Matsumoto. 1.28-Tb/s (32 x 40 Gb/s) free-space optical WDM transmission system. Photonics Technology Letters, IEEE, 21(16), 2009.Google ScholarCross Ref
- A. Curtis, S. Keshav, and A. Lopez-Ortiz. Legup: using heterogeneity to reduce the cost of data center network upgrades. In Co-NEXT, 2010. Google ScholarDigital Library
- A. Curtis, W. Kim, and P. Yalagandula. Mahout: Low-overhead datacenter traffic management using end-host-based elephant detection. In INFOCOM, 2011.Google ScholarCross Ref
- H. L. Davidson et al. Data center with free-space optical communications. US Patent 8,301,028, 2012.Google Scholar
- N. Farrington. Optics in data center network architecture. http://nathanfarrington.com/papers/dissertation.pdf.Google Scholar
- N. Farrington, G. Porter, S. Radhakrishnan, H. H. Bazzaz, V. Subramanya, Y. Fainman, G. Papen, and A. Vahdat. Helios: a hybrid electrical/optical switch architecture for modular data centers. In SIGCOMM, 2010. Google ScholarDigital Library
- B. Fortz, J. Rexford, and M. Thorup. Traffic engineering with traditional IP routing protocols. IEEE COmmunications Magazine, 2002. Google ScholarDigital Library
- A. Greenberg, J. R. Hamilton, N. Jain, S. Kandula, C. Kim, P. Lahiri, D. A. Maltz, P. Patel, and S. Sengupta. Vl2: a scalable and flexible data center network. In SIGCOMM, 2009. Google ScholarDigital Library
- D. Halperin, S. Kandula, J. Padhye, P. Bahl, and D. Wetherall. Augmenting data center networks with multi-gigabit wireless links. In SIGCOMM, 2011. Google ScholarDigital Library
- B. Heller, S. Seetharaman, P. Mahadevan, Y. Yiakoumis, P. Sharma, S. Banerjee, and N. McKeown. ElasticTree: Saving Energy in Data Center Networks. In Proc. NSDI, 2010. Google ScholarDigital Library
- D. Kedar and S. Arnon. Urban optical wireless communication networks: the main challenges and possible solutions. IEEE Communications Magazine, 42(5), 2004. Google ScholarDigital Library
- L. Li. CEO, KentOptronics. Personal Communication.Google Scholar
- P. F. McManamon, P. K. Bos, M. J. Escuiti, J. Jeikenfeld, S. Serati, H. Xie, and E. A. Watson. A review of phased array steering for narrow-band electrooptical systems. Proceedings of the IEEE, 2009.Google ScholarCross Ref
- J. Mudigonda, P. Yalagandula, and J. C. Mogul. Taming the Flying Cable Monster: A Topology Design and Optimization Framework for Data-Center Networks. In Proc. USENIX ATC, 2011. Google ScholarDigital Library
- L. Mustafa and B. Thomsen. Reintroducing free-space optical technology to community wireless networks. In Proc. 19th Americas Conference on Information Systems, Chicago, August, 2013., 2013.Google Scholar
- R. N. Mysore, A. Pamboris, N. Farrington, N. Huang, P. Miri, S. Radhakrishnan, V. Subramanya, and A. Vahdat. PortLand: A Scalable Fault-Tolerant Layer 2 Data Center Network Fabric. In Proc. ACM SIGCOMM, 2009. Google ScholarDigital Library
- L. Popa, S. Ratnasamy, G. Iannaccone, A. Krishnamurthy, and I. Stoica. A cost comparison of datacenter network architectures. In Co-NEXT, 2010. Google ScholarDigital Library
- J.-Y. Shin, E. G. Sirer, H. Weatherspoon, and D. Kirovski. On the feasibility of completely wireless datacenters. In Proc. ANCS, 2012. Google ScholarDigital Library
- A. Singla et al. Proteus: a topology malleable data center network. In HotNets, 2010. Google ScholarDigital Library
- A. Singla, C.-Y. Hong, L. Popa, and P. B. Godfrey. Jellyfish: Networking data centers randomly. In NSDI, 2012. Google ScholarDigital Library
- T. Tsujimura, K. Yoshida, T. Kurashima, and M. Mikawa. Trans-window free space optics transmission system. In Proc. SICE Annual Conference, 2008. IEEE, 2008.Google ScholarCross Ref
- G. Wang, D. G. Andersen, M. Kaminsky, K. Papagiannaki, T. S. E. Ng, M. Kozuch, and M. Ryan. c-through: Part-time optics in data centers. In SIGCOMM, 2010. Google ScholarDigital Library
- D. Wischik, C. Raiciu, A. Greenlagh, and M. Handley. Design, Implementation and Evaluation of Congestion Control for Multipath TCP. In proceedings of Usenix NSDI, 2011. Google ScholarDigital Library
- K. Yoshida, K. Tanaka, T. Tsujimura, and Y. Azuma. Assisted focus adjustment for free space optics system coupling single-mode optical fibers. Industrial Electronics, IEEE Transactions on, 60(11), 2013.Google Scholar
- X. Zhou, Z. Zhang, Y. Zhu, Y. Li, S. Kumar, A. Vahdat, B. Y. Zhao, and H. Zheng. Mirror mirror on the ceiling: flexible wireless links for data centers. In SIGCOMM, 2012. Google ScholarDigital Library
Index Terms
- Patch panels in the sky: a case for free-space optics in data centers
Recommendations
FireFly: a reconfigurable wireless data center fabric using free-space optics
SIGCOMM '14: Proceedings of the 2014 ACM conference on SIGCOMMConventional static datacenter (DC) network designs offer extreme cost vs. performance tradeoffs---simple leaf-spine networks are cost-effective but oversubscribed, while "fat tree"-like solutions offer good worst-case performance but are expensive. ...
Divergence and Power Variations in Mobile Free-Space Optical Communications
ICONS '08: Proceedings of the Third International Conference on SystemsFree-space optical (FSO) communications links are envisioned as a viable option for the provision of temporary high-bandwidth communications links between mobile platforms. The introduction of mobility to a technology originally intended for fixed ...
Performance analysis of WDM-FSO system under adverse weather conditions
Free-space optics (FSO) is a data relaying technology, which requires a direct line of sight between the transmitter and the receiver units for reliable transmission. FSO communication links have many merits such as high modulation bandwidth, high data ...
Comments