DetServ: Network models for real-time QoS provisioning in SDN-based industrial environments

Guck JW, Van Bemten A, Kellerer W (2017)

Publication Type: Journal article

Publication year: 2017

Journal

IEEE Transactions on Network and Service Management Institute of Electrical and Electronics Engineers

Book Volume: 14

Pages Range: 1003-1017

Journal Issue: 4

DOI: 10.1109/TNSM.2017.2755769

Abstract

Industrial networks require real-time guarantees for the flows they carry. That is, flows have hard end-to-end delay requirements that have to be deterministically guaranteed. While proprietary extensions of Ethernet have provided solutions, these often require expensive forwarding devices. The rise of software-defined networking (SDN) opens the door to the design of centralized traffic engineering frameworks for providing such real-time guarantees. As part of such a framework, a network model is needed for the computation of worst-case delays and for access control. In this paper, we propose two network models based on network calculus theory for providing deterministic services (DetServ). While our first model, the multi-hop model (MHM), assigns a rate and a buffer budget to each queue in the network, our second model, the threshold-based model (TBM), simply fixes a maximum delay for each queue. Via a packet-level simulation, we confirm that the delay bounds guaranteed by both models are never exceeded and that no packet loss occurs. We further show that the TBM provides more flexibility with respect to the characteristics of the flows to be embedded and that it has the potential of accepting more flows in a given network. Finally, we show that the runtime cost for this increase in flexibility stays reasonable for online request processing in industrial scenarios.

Involved external institutions

Technische Hochschule Mittelhessen - University of Applied Sciences DE Germany (DE) Technische Universität München (TUM) DE Germany (DE)

How to cite

APA:

Guck, J.W., Van Bemten, A., & Kellerer, W. (2017). DetServ: Network models for real-time QoS provisioning in SDN-based industrial environments. IEEE Transactions on Network and Service Management, 14(4), 1003-1017. https://doi.org/10.1109/TNSM.2017.2755769

MLA:

Guck, Jochen W., Amaury Van Bemten, and Wolfgang Kellerer. "DetServ: Network models for real-time QoS provisioning in SDN-based industrial environments." IEEE Transactions on Network and Service Management 14.4 (2017): 1003-1017.

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