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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 31, Iss. 9 — May. 1, 2013
  • pp: 1512–1525

First Demonstration of a Cross-Layer Enabled Network Node

Caroline P. Lai, Daniel Brunina, Brandon W. Buckley, Cedric Ware, Wenjia Zhang, AjayS. Garg, Bahram Jalali, and Keren Bergman

Journal of Lightwave Technology, Vol. 31, Issue 9, pp. 1512-1525 (2013)

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Exploding traffic demands and increasing energy consumptions facing today's networks are driving the designs of next-generation networking technologies. Cross-layer enabled approaches will allow for the packet-level control of the optical layer, to enable dynamic resource allocation and traffic engineering at the physical layer. We demonstrate an intelligent cross-layer enabled network node that can support high-bandwidth, all-optically routed packets, using emerging photonic technologies including optical packet switched fabrics and packet-scale performance monitoring. Using a cross-layer control and management plane, the node can dynamically optimize optical switching based on higher-layer constraints such as quality-of-service and energy consumption, as well as quality-of-transmission metrics such as link integrity and bit-error rates.We demonstrate a first-generation prototype of the cross-layer node, outlining its architecture and major implemented subsystems. The packet-rate physical-layer reconfiguration of the node's fabric is shown using an implemented performance monitor and control plane. The realized node supports 8 × 40-Gb/s wavelength-striped optical packets with pseudorandom data with error-free transmission (bit-error rates less than 10-12), in conjunction with the heterogeneous transmission of video traffic using 10-Gigabit Ethernet optical network interface cards based on field-programmable gate arrays.

© 2013 IEEE

Caroline P. Lai, Daniel Brunina, Brandon W. Buckley, Cedric Ware, Wenjia Zhang, AjayS. Garg, Bahram Jalali, and Keren Bergman, "First Demonstration of a Cross-Layer Enabled Network Node," J. Lightwave Technol. 31, 1512-1525 (2013)

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