Network QoS Assurance in a Multi-Layer Adaptive Resource Management Scheme for Mission-Critical Applications using the CORBA Middleware Framework

Authors:
B. Dasarathy;S. Gadgil;R. Vaidyanathan;K. Parmeswaran;B. Coan;M. Conarty;V. Bhanot
Affiliations:
Telcordia Technologies;Telcordia Technologies;Telcordia Technologies;Telcordia Technologies;Telcordia Technologies;PrismTech;PrismTech
Venue:
RTAS '05 Proceedings of the 11th IEEE Real Time on Embedded Technology and Applications Symposium
Year:
2005

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Abstract

We present adaptive network QoS (Quality of Service) technology that provides ongoing, end-to-end assurance that critical traffic belonging to admitted flows has bounded queuing loss, delay, and jitter. Our technology uses a Bandwidth Broker to provide admission control, and leverages Differentiated Services and Class of Service functionality of high-end routers and switches for enforcement. The technology employs an integrated QoS treatment across a hybrid layer-2/layer-3 network and adapts to changes in mission requirements, work load and configurations; it uses discovery algorithms in these layers to maintain a current view of resource availability. Under the DARPA ARMS (Adaptive and Reflective Middleware Systems) program, our technology is being developed, integrated and validated in a CORBA-based multi-layer resource management framework.