IP Quality of Service Support for Soft Real-Time Applications
Karthik Channakeshava, Kaustubh S. Phanse, Luiz A. DaSilva, Binoy Ravindran, Scott F. Midkiff, E. Douglas Jensen · 2005
To obtain acceptable timeliness performance for emerging large-scale distributed real-time control applications operating in large IP internetworks, a scalable quality of service (QoS) architecture is needed. In this paper, we propose a scalable QoS architecture (abbreviated as RTQoS) in support of real-time systems, one that implements real-time scheduling at end-hosts and stateless QoS in the core routers. We address challenges and explore potential benefits achieved by integrating network services with real-time systems, through the use of a network testbed. Experimental evaluation demonstrates the RTQoS architecture as a promising approach for soft real-time applications that are subject to time/utility function time constraints and utility accrual optimality criteria. 1.