Mobility

Pre-Congestion Notification-Based Flow Management in MPLS-Based DiffServ Networks

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Executive Summary

Recent trends in applications require per-flow treatment instead of the packet-based treatment inherent in the present day Internet. This requirement is analogous to trying to make a phone call in a standard PSTN line or cellular network and either receiving a busy tone or call accept. This paper explores the potential of providing flow-based admission control and termination functionality to an MPLS-based DiffServ network by applying Pre-Congestion Notification (PCN). MPLS-based DiffServ networks are state of the art technologies used in many carrier backbones to provide Quality of Service for different traffic classes.

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