All-optical packet/circuit switching-based data center network for enhanced scalability, latency, and throughput

Applications running inside data centers are enabled through the cooperation of thousands of servers arranged in racks and interconnected together through the data center network. Current DCN architectures based on electronic devices are neither scalable to face the massive growth of DCs, nor flexible enough to efficiently and cost-effectively support highly dynamic application traffic profiles. The FP7 European Project LIGHTNESS foresees extending the capabilities of today's electrical DCNs throPugh the introduction of optical packet switching and optical circuit switching paradigms, realizing together an advanced and highly scalable DCN architecture for ultra-high-bandwidth and low-latency server-to-server interconnection. This article reviews the current DC and high-performance computing (HPC) outlooks, followed by an analysis of the main requirements for future DCs and HPC platforms. As the key contribution of the article, the LIGHTNESS DCN solution is presented, deeply elaborating on the envisioned DCN data plane technologies, as well as on the unified SDN-enabled control plane architectural solution that will empower OPS and OCS transmission technologies with superior flexibility, manageability, and customizability.

[1]  Ian Gorton,et al.  The Changing Paradigm of Data-Intensive Computing , 2009, Computer.

[2]  Bert Wijnen,et al.  An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks , 2002, RFC.

[3]  H. J. S. Dorren,et al.  Scaling low-latency optical packet switches to a thousand ports , 2012, IEEE/OSA Journal of Optical Communications and Networking.

[4]  H. J. S. Dorren,et al.  Scaling photonic packet switches to a large number of ports , 2011, 2011 ICO International Conference on Information Photonics.

[5]  J. Luo,et al.  Low latency and large port count optical packet switch with highly distributed control , 2012, OFC/NFOEC.

[6]  Nick McKeown,et al.  OpenFlow: enabling innovation in campus networks , 2008, CCRV.

[7]  J Luo,et al.  Numerical and experimental study of a high port-density WDM optical packet switch architecture for data centers. , 2013, Optics express.

[8]  Luiz André Barroso,et al.  The Datacenter as a Computer: An Introduction to the Design of Warehouse-Scale Machines , 2009, The Datacenter as a Computer: An Introduction to the Design of Warehouse-Scale Machines.

[9]  Gunjan Tank,et al.  Software-Defined Networking-The New Norm for Networks , 2012 .

[10]  Eric Mannie,et al.  Generalized Multi-Protocol Label Switching (GMPLS) Architecture , 2004, RFC.

[11]  Amin Vahdat,et al.  Helios: a hybrid electrical/optical switch architecture for modular data centers , 2010, SIGCOMM '10.

[12]  Adrian Farrel,et al.  A Path Computation Element (PCE)-Based Architecture , 2006, RFC.

[13]  Adrian Farrel,et al.  The Application of the Path Computation Element Architecture to the Determination of a Sequence of Domains in MPLS and GMPLS , 2012, RFC.

[14]  J. Luo,et al.  Scaling photonic packet switches to a large number of ports [invited] , 2012, IEEE/OSA Journal of Optical Communications and Networking.