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Designing a Fault tolerant Optical Interconnection Network for Data Centers

Akbari Rokn Abadi, Saeedeh | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50143 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Koohi, Somayyeh
  7. Abstract:
  8. Data center performance is a function of three features; bandwidth, latency, and reliability. The issue of increasing bandwidth and reducing power consumption for scalability is one of the things that can be accessed with optical technology and it has been used in recent designs. However, the problem of fault tolerance and dealing with failures in optical interconnection networks have been raised less. Data center failures fall into two categories of links and switches. The design of these networks is mainly done at two levels: the hardware design and the design of routing methods. Also, some parts may be added to control and establish connections between the routing and network hardware segment, which should attend to their reliability. The main purpose of this project is designing and evaluating a fault tolerant optical interconnection network for connecting processing blocks and memory elements in a data center, which is raised in a form of dealing with faults and the design of three optical interconnection networks in the different types of redundancy. So we can evaluate how the features together create a more efficient network, and the combination of the fault tolerant method with which network in terms of throughput, power consumption, delay, and cost is more appropriate. The three proposed simulations were simulated at the behavioral level, and the result was that the optical Torus network with additional links was more efficient than the other optical Clos network and Optical Torus. Torus with additional links has the best performance in terms of throughput under links failure, transmission latency, and power loss. This statement is true even with the growth of the number of network hosts. The comparison of two proposed networks based on Torus with the WaveCube network shows that packet drop rate of the network has decreased more than 40%, while the cost of construction and power consumption are reduced too
  9. Keywords:
  10. Reliability ; Redundancy ; Data Center ; Fault Tolerance ; Optical Communication

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