Portal de Periódicos da CAPES

Torus Data Center Network With Smart Flow Control Enabled by Hybrid Optoelectronic Routers [Invited]

2015; Volume: 7; Issue: 12 Linguagem: Inglês

10.1364/jocn.7.00b141

1943-0639

Ryo Takahashi, Toru Segawa, Salah Ibrahim, Tatsushi Nakahara, Hiroshi Ishikawa, Atsushi Hiramatsu, Yue‐Cai Huang, Ken‐ichi Kitayama,

Advanced Optical Network Technologies

A torus-topology photonic data center network with smart flow control is presented, where optical packet switching (OPS), optical circuit switching (OCS), and virtual OCS (VOCS) schemes are all enabled on a unified hardware platform via the combination of hybrid optoelectronic routers (HOPR) and a centralized network controller. An upgraded HOPR is being developed with the goal of handling 100 Gbps optical packets with a high energy efficiency of 90 mW/Gbps and low latency of less than 100 ns. The architecture of HOPR and its enabling technologies are reviewed, including a label processor, optical switch, and optoelectronic shared buffer. We also explain the concept and operation mechanisms of both the data and control planes in the hybrid OPS/OCS/VOCS torus network. The performance of these three transmission modes is evaluated by numerical simulations for a network composed of 4096 HOPRs.