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Selected Works of Mohsen Guizani
Article
Hybrid Optical-Electrical Data Center Networking: Challenges and Solutions for Bandwidth Resource Optimization
IEEE Communications Magazine
  • Fu Wang, School of Information and Electronics, Beijing Institute of Technology, Beijing, 100081, China
  • Haipeng Yao, State Key Lab Networking & Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China
  • Jingjing Wang, School of Cyber Science and Technology, Beihang University, Beijing, 100191, China
  • Tianle Mai, State Key Lab Networking & Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China
  • Xiangjun Xin, School of Information and Electronics, Beijing Institute of Technology, Beijing, 100081, China
  • Mohsen Guizani, Mohamed bin Zayed University of Artificial Intelligence
Link
Document Type
Article
Abstract

Fast optical switching (FOS) is the most promising technology for data center networks (DCNs) to meet data rate requirements beyond 800 Gb/s, considering its transparent modulation format, low power consumption and dense port integration. However, FOS, leveraging optical-packet-switching (OPS) technology, is hardly compatible with the electrical switches that are widely used in the current hybrid optical/electrical switching data center networks (Hoe-DCNs). The diversity of topologies and multi-switching granularity increases the risk of service disruption and reduces bandwidth efficiency. Based on the IPover- OPS system, we propose bandwidth resource optimization techniques with the aid of hybrid polling contention resolution and microsecond-level load balancing in Hoe-DCNs. We first present an optical switching architecture to show its performance characteristics in the context of nanosecond-level FOSs in terms of resource management and setup optimization. Based on the fabricated FOS structure, we discuss the emerging problem of packet contention and introduce a bufferless scheduling solution. The characteristics of load balancing for Hoe-DCN are then investigated and evaluated by simulating Hoe-DCNs. Finally, the numerical results are given and analyzed based on a large-scale DCN testbed. IEEE

DOI
10.1109/MCOM.002.2200060
Publication Date
7-4-2022
Keywords
  • Bandwidth,
  • Fabrics,
  • Optical buffering,
  • Optical device fabrication,
  • Optical packet switching,
  • Optical switches,
  • Servers,
  • Bandwidth resource,
  • Data center networks,
  • Electrical switching,
  • Load-Balancing
Disciplines
Comments

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Citation Information
F. Wang, H. Yao, J. Wang, T. Mai, X. Xin and M. Guizani, "Hybrid Optical-Electrical Data Center Networking: Challenges and Solutions for Bandwidth Resource Optimization," in IEEE Communications Magazine, doi: 10.1109/MCOM.002.2200060.