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    This study introduces a novel multi-stratum resource integration (MSRI) architecture for software-defined elastic data center optical interconnects. It enhances resource utilization and optimizes network and application resources for data center services.

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    Area of Science:

    • Optical Networking
    • Data Center Interconnects
    • Network Function Virtualization

    Background:

    • Data center services demand high bandwidth and exhibit burstiness.
    • Previous work established multi-stratum resilience between IP and elastic optical networks.
    • Existing solutions face limitations in network device capacity and resource utilization.

    Purpose of the Study:

    • To propose a novel multi-stratum resources integration (MSRI) architecture for software-defined elastic data center optical interconnects.
    • To enhance resource utilization by breaking network device limitations.
    • To improve the global optimization of optical network and application resources.

    Main Methods:

    • Development of a multi-stratum resources integration (MSRI) architecture leveraging network function virtualization.
    • Introduction of a resource integrated mapping (RIM) scheme within the MSRI architecture.
    • Experimental verification on an OpenFlow-based enhanced software defined networking (eSDN) testbed.

    Main Results:

    • The MSRI architecture successfully accommodates data center services, even with scarce single resources.
    • The proposed architecture enhances globally integrated optimization of optical network and application resources.
    • Quantitative evaluation of the RIM scheme demonstrated improved performance under heavy traffic loads, including reduced path blocking probability and provisioning latency, alongside increased resource utilization.

    Conclusions:

    • The proposed MSRI architecture and RIM scheme are feasible and efficient for elastic data center optical interconnects.
    • Resource integration significantly enhances resource utilization and overall network performance.
    • The approach effectively addresses the challenges of high burstiness and high-bandwidth requirements in data center services.