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Non-cooperative edge-assisted route adaptation of aggregated traffic

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2 Author(s)
Ganguly, S. ; NEC Labs. America, Princeton, NJ, USA ; Izmailov, R.

We present a QoS-enhanced routing framework designed for an administrative system that runs a QoS-aware link-state routing protocol supporting MPLS. This routing framework is based on using only edge nodes and does not require any modifications at the core. The framework also does not employ any bandwidth reservation; instead, congestion is relieved by adaptive rerouting of aggregated traffic flows. Route oscillation is prevented by using randomization-based back-off techniques for triggering route changes. The proposed mechanism is distributed and non-cooperative, which makes it suitable for practical implementation. The results of simulations demonstrate that a significant reduction of packet drop ratio can be achieved with a moderate number of path shifts.

Published in:

Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE  (Volume:7 )

Date of Conference:

1-5 Dec. 2003