SDN-Based Circuit-Switching for Many-Cores

Ruaro, Marcelo; Medina, Henrique; Moraes, Fernando

doi:10.1109/isvlsi.2017.74

Cited by 10 publications

(19 citation statements)

References 18 publications

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“…Each SDN router is a simple hardware unit that connects an input port to an output port, according to a configuration process. The SDN router corresponds to 25% of the area and power of a PS router [4], with the same flit width. The PS subnet adopts a 32-bit flit-with, while the SDN subnets adopt 16-bit flit-with, reducing the SDN area even more.…”

Section: Related Workmentioning

confidence: 99%

“…Data coming from the input port is forwarded to the output with a delay of one clock cycle due to the buffering process required to avoid long wires. Further details related to the SR, the MPN, and the Controller designs are available at [4,5].…”

Section: Reference Mcsoc Architecturementioning

confidence: 99%

“…It is out of the scope of this work the proposal of an SDN path search heuristic. In the experiments, we adopt the Hadlock algorithm (shortest path [4,21]), chosen due to its advantages compared to similar routing algorithms [22].…”

Section: Step 2 -Path Searchmentioning

confidence: 99%

“…The router becomes a simple and configurable unity able to redirect NoC packets according to the Controller rules. Due to its global knowledge of NoC's resources, the Controller may adopt policies to mitigate faults, to balance the communication load, to manage the NoC power consumption [7], and to provide QoS for real-time flows [3,4]. Moreover, all such features can be combined into the Controller, resulting in multi-objective management.…”

Section: Introductionmentioning

confidence: 99%

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A Systemic and Secure SDN Framework for NoC-Based Many-Cores

2020

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Recent exploration of Software-Defined Networking (SDN) for Many-Core Systems-on-Chip (MCSoCs) showed higher management flexibility and reduced physical complexity compared to other runtime communication management. In SDN, there is a software SDN Controller (control layer) that configures generic routers (data layer). The adoption of SDN makes the path establishment programmable and straightforward, according to different network policies, such as low power, QoS, fault-tolerance. It is also possible to change the path establishment policies at runtime without the need to redesign the NoC. Current works focus on proposing SDN architectures, lacking a systemic framework that describes the steps required to implement SDN into a Many-core environment. Security is an observed gap in SDN designs. A malicious task could configure SDN routers and take control of the NoC. The contribution of this work is to present a systemic and secure SDN framework (SDN-SS), detailing the steps required to support SDN in MCSoCs. This work also describes the iteration between the hardware, operating system, and user's tasks. The SDN-SS manages a Multiple-Physical NoC, with one packet-switching subnet and a set of circuitswitching subnets. The originality of SDN-SS includes (i) a step-by-step framework description addressing the phases required to support a secure SDN management; (ii) a secure SDN router configuration protocol; (iii) a protocol to change the subnet at runtime. Experimental results show the framework's capability to avoid DoS and Spoofing attacks while presents a low SDN router configuration overhead, corresponding up to 2% of a related work delay and a small impact over the user's task communication.

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Section: Related Workmentioning

confidence: 99%

Section: Reference Mcsoc Architecturementioning

confidence: 99%

Section: Step 2 -Path Searchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Systemic and Secure SDN Framework for NoC-Based Many-Cores

2020

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“…The area required by OSZ was, on average, 15% and 12.4% higher than SDN1 and SDN2, respectively. It is recommended to increase the number of SDN subnets in larger systems, to increase the path diversity and ensure that paths are found in congested scenarios [31]. Thus, the SDN area may be larger than the OSZ increasing the number of SDN subnets.…”

Section: Design Costmentioning

confidence: 99%

SDN-Based Secure Application Admission and Execution for Many-Cores

2020

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General-purpose many-core system-on-chip (MCSoC) requires support to the execution of dynamic workloads, i.e., admission of new applications at runtime. Some applications may require QoS and security from the MCSoC, not tolerating that malicious tasks or hardware Trojans steal or corrupts their data. A robust method to provide security is to isolate the communication and computation. Most current works employ such isolation in continuous regions named secure zones (SZ). Motivated by the recent study of the Software-Defined Networking (SDN) paradigm for MCSoCs, this work proposes to use SDN-based management to implement the communication isolation at runtime. The computation isolation occurs by mapping only tasks of the same application at each core. The communication isolation is supported by the SDN paradigm, which establishes dedicating paths for secure applications. Results show that the SDN-based approach presents a negligible latency to admit and execute a secure application, with a reduced hardware cost and higher computational resources utilization compared to SZs.

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Exploring the security landscape: NoC-based MPSoC to Cloud-of-Chips

Sharma

Bousdras

Ellinidou

et al. 2021

Microprocessors and Microsystems

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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SDN-Based Circuit-Switching for Many-Cores

Cited by 10 publications

References 18 publications

A Systemic and Secure SDN Framework for NoC-Based Many-Cores

A Systemic and Secure SDN Framework for NoC-Based Many-Cores

SDN-Based Secure Application Admission and Execution for Many-Cores

Exploring the security landscape: NoC-based MPSoC to Cloud-of-Chips

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