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Related Experiment Video

Updated: Mar 18, 2026

Quasi-light Storage for Optical Data Packets
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Software-defined optical network for metro-scale geographically distributed data centers.

Payman Samadi, Ke Wen, Junjie Xu

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    Summary
    This summary is machine-generated.

    A new software-defined inter data center network enables on-demand data center scaling over metro optical networks. This agile network supports reliable applications and flexible scalability for cloud computing and big data.

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    Area of Science:

    • Computer networking
    • Cloud computing infrastructure
    • Optical networking

    Background:

    • The growth of cloud computing and big data necessitates agile inter-data center networking.
    • Small and mid-sized data centers require scalable and reliable network connectivity.
    • Existing solutions may lack the flexibility for on-demand data center expansion.

    Purpose of the Study:

    • To present a software-defined inter data center network architecture.
    • To enable on-demand scaling of data centers across a metro-scale optical network.
    • To support application reliability and flexible scalability.

    Main Methods:

    • Developed a software-defined inter data center network.
    • Integrated a space/wavelength switching platform with an SDN control plane.
    • Implemented a wavelength and routing assignment module for on-demand connection establishment.
    • Evaluated the architecture in a 3-data center testbed (5-25 km apart).

    Main Results:

    • Successfully demonstrated end-to-end bulk data transfer across data centers.
    • Achieved seamless Virtual Machine (VM) migrations between data centers.
    • Established connections with less than 100 ms setup time.
    • Utilized close to full optical link capacity.

    Conclusions:

    • The proposed software-defined network effectively enables on-demand data center scaling.
    • The architecture provides agile, reliable, and scalable connectivity for cloud environments.
    • Metro-scale optical networks can support dynamic inter-data center traffic demands.