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Building a Flexible and Scalable Virtual Hardware Data Plane

  • Conference paper
NETWORKING 2012(NETWORKING 2012)

Abstract

Network virtualization which enables the coexistence of multiple networks in shared infrastructure adds extra requirements on data plane of router. Software based virtual data plane is inferior in performance, whereas, hardware based virtual data plane is hard to achieve flexibility and scalability. In this paper, using FPGA (Field Program Gate Array) and TCAM (Ternary Content Addressable Memory), we design and implement a virtual hardware data plane achieving high performance, flexibility and scalability simultaneously. The data plane uses a 5-stage pipeline design. The procedure of packet processing is unified with TCAM based rule matching and action based packet processing. The hardware data plane can be easily configured to support multiple VDP (Virtual Data Plane) instances. And in each VDP instance, the pattern of packet processing can be flexibly configured. Also, it can achieve seamless migration of VDP instance between software and hardware. The hardware data plane also provides a 4-channel high-performance DMA engine which largely reduces packet acquisition overhead on software. So that software can be more involved in customized packet processing.

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Author information

Authors and Affiliations

  1. Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China

    Junjie Liu, Yingke Xie, Gaogang Xie, Layong Luo, Fuxing Zhang, Xiaolong Wu, Qingsong Ning & Hongtao Guan

  2. Graduate University of Chinese Academy of Sciences, Beijing, China

    Junjie Liu, Layong Luo, Fuxing Zhang, Xiaolong Wu & Qingsong Ning

Authors
  1. Junjie Liu

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  2. Yingke Xie

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  3. Gaogang Xie

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  4. Layong Luo

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  5. Fuxing Zhang

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  6. Xiaolong Wu

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  7. Qingsong Ning

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  8. Hongtao Guan

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Editor information

Editors and Affiliations

  1. Department of Telecommunications Engineering, Czech Technical University in Prague, Technicka 2, 166 27, Prague 6, Czech Republic

    Robert Bestak  & Lukas Kencl  & 

  2. Alcatel-Lucent, Bell Labs, 600 Mountain Avenue, 07974-0636, Murray Hill, NJ, USA

    Li Erran Li

  3. Instituto IMDEA Networks, Avenida del Mar Mediterraneo 22, Leganes, 28918, Madrid), Spain

    Joerg Widmer

  4. Tsinghua-ChinaCache Joint Laboratory, Tsinghua University, FIT 3-429, Haidian District, 100016, Beijing, China

    Hao Yin

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© 2012 IFIP International Federation for Information Processing

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Liu, J.et al. (2012). Building a Flexible and Scalable Virtual Hardware Data Plane. In: Bestak, R., Kencl, L., Li, L.E., Widmer, J., Yin, H. (eds) NETWORKING 2012. NETWORKING 2012. Lecture Notes in Computer Science, vol 7289. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30045-5_16

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