A new class of QoS routing strategies based on network graph reduction

Proceedings - IEEE INFOCOM - Tập 2 - Trang 715-722 vol.2
C. Casetti1, R. Lo Cigno1, M. Mellia1, M. Munafo1
1Dipartimento di Elettronica, Politecnico di Torino, Torino, Italy

Tóm tắt

This paper discusses a new approach to QoS routing, introducing the notion of algorithm resilience (i.e., its capability to adapt to network and load modifications) as the performance index of the algorithm itself, for a given network topology, load and traffic pattern. The new approach can be summarized as network graph reduction, i.e., a modification of the graph describing the network before the routing path is computed, in order to exclude from the path selection over-congested portions of the network. This solution leads to a class of two-step routing algorithms, where both steps are simple, hence allowing efficient implementation. Simulation experiments, run on randomly-generated topologies and traffic patterns, show that these routing algorithms outperform both the standard minimum hop algorithm and those QoS-based algorithms based on the same metrics but not using the notion of network graph reduction.

Từ khóa

#Routing #Telecommunication traffic #IP networks #Cost function #Throughput #Electronic mail #Network topology #Traffic control #TCPIP #Bandwidth

Tài liệu tham khảo

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