Analysis of QoS to Guarantee Application SLAs for Trusted Industrial Control Network

Abstract:

Differentiated services architecture is receiving wide attention as a framework for providing different levels of service in the industrial control networks.Traditional networks are designed with no traffic differentiation; all traffic mission-critical and non-mission-critical is treated equally.In indutrial networks, it becomes important to make sure that mission-critical applications do not suffer. QoS (Quality-of-Service) solutions, available in common network devices, try to provide traffic differentiation and predictable performance for mission critical applications.In this paper we propose a novel Quality of Service provisioning approach, appropriate for trusted industrial networks. This method, based on the real-time system reconfiguration, exploits the system monitoring information, along with quality parameters from the SLAs and experience from previous executions.The presented QoS provisioning process proposes a set of actions based on application specific policies, which are closely coupled with particular SLAs in order to provide the required QoS level for the application. Furthermore, We study applies the methodology using OPNET simulation products to compare and contrast the performance of a new application in an environment with and without IP QoS solutions.

• Periodical: Applied Mechanics and Materials (Volumes 121-126)
• Pages: 1916-1921
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.121-126.1916
• Online since: October 2011
• Authors: Ji Zhong, Sen Xin Zhou
• Keywords: Industrial Control Network, Optimized Network Engineering Tool (OPNET), Quality of Service (QoS), Service Level Agreements (SLAs)

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