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Proceedings Paper

A programmable Si-photonic node for SDN-enabled Bloom filter forwarding in disaggregated data centers
Author(s): M. Moralis-Pegios; N. Terzenidis; C. Vagionas; S. Pitris; E. Chatzianagnostou; A. Brimont; A. Zanzi; P. Sanchis; J. Marti; J. Kraft; K. Rochracher; S. Dorrestein; M. Bogdan; T. Tekin; D. Syrivelis; L. Tassiulas; A. Miliou; N. Pleros; K. Vyrsokinos
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Paper Abstract

Programmable switching nodes supporting Software-Defined Networking (SDN) over optical interconnecting technologies arise as a key enabling technology for future disaggregated Data Center (DC) environments. The SDNenabling roadmap of intra-DC optical solutions is already a reality for rack-to-rack interconnects, with recent research reporting on interesting applications of programmable silicon photonic switching fabrics addressing board-to-board and even on-board applications. In this perspective, simplified information addressing schemes like Bloom filter (BF)-based labels emerge as a highly promising solution for ensuring rapid switch reconfiguration, following quickly the changes enforced in network size, network topology or even in content location. The benefits of BF-based forwarding have been so far successfully demonstrated in the Information-Centric Network (ICN) paradigm, while theoretical studies have also revealed the energy consumption and speed advantages when applied in DCs. In this paper we present for the first time a programmable 4x4 Silicon Photonic switch that supports SDN through the use of BF-labeled router ports. Our scheme significantly simplifies packet forwarding as it negates the need for large forwarding tables, allowing for its remote control through modifications in the assigned BF labels. We demonstrate 1x4 switch operation controlling the Si-Pho switch by a Stratix V FPGA module, which is responsible for processing the packet ID and correlating its destination with the appropriate BF-labeled outgoing port. DAC- and amplifier-less control of the carrier-injection Si-Pho switches is demonstrated, revealing successful switching of 10Gb/s data packets with BF-based forwarding information changes taking place at a time-scale that equals the duration of four consecutive packets.

Paper Details

Date Published: 20 February 2017
PDF: 7 pages
Proc. SPIE 10109, Optical Interconnects XVII, 101090X (20 February 2017); doi: 10.1117/12.2252043
Show Author Affiliations
M. Moralis-Pegios, Aristotle Univ. of Thessaloniki (Greece)
N. Terzenidis, Aristotle Univ. of Thessaloniki (Greece)
C. Vagionas, Aristotle Univ. of Thessaloniki (Greece)
S. Pitris, Aristotle Univ. of Thessaloniki (Greece)
E. Chatzianagnostou, Aristotle Univ. of Thessaloniki (Greece)
A. Brimont, Univ. Politècnica de València (Spain)
A. Zanzi, Univ. Politècnica de València (Spain)
P. Sanchis, Univ. Politècnica de València (Spain)
J. Marti, Univ. Politècnica de València (Spain)
J. Kraft, ams AG (Austria)
K. Rochracher, ams AG (Austria)
S. Dorrestein, TE Connectivity Ltd. (Netherlands)
M. Bogdan, Fraunhofer-Institut für Zuverlässigkeit und Mikrointegration (Germany)
T. Tekin, Fraunhofer-Institut für Zuverlässigkeit und Mikrointegration (Germany)
D. Syrivelis, Univ. of Thessaly (Greece)
L. Tassiulas, Yale Univ. (United States)
A. Miliou, Aristotle Univ. of Thessaloniki (Greece)
N. Pleros, Aristotle Univ. of Thessaloniki (Greece)
K. Vyrsokinos, Aristotle Univ. of Thessaloniki (Greece)


Published in SPIE Proceedings Vol. 10109:
Optical Interconnects XVII
Henning Schröder; Ray T. Chen, Editor(s)

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