Recent works analyze the energy saving improvements of greened networks. The main idea is to define algorithms able to put some network links or devices into sleep mode for saving the used energy. This can achieved by adopting power-aware traffic engineering to route traffic towards a subset of links or to consider topology-based and traffic-based pruning mechanisms. These approaches are very promising as for the energy saving and the overall network performance remain satisfactory, however the question is: are the per-flow traffic performance still guaranteed? How does TCP perform in such a greened network? In this paper we analyze the performance of different versions of TCP in a network where energy savings are achieved by the use of one of the algorithm, namely ESTOP, defined to prune the IP network on the basis of network topological characteristics. The performance results show that the behavior of that TCP versions depending on the round trip time, namely Reno and Cubic, are affected by the link pruning in an expected way. This may allow to use these pruning techniques with a suitable control on the per-flow performance. The tradeoff between energy saving and TCP through-put loss is analyzed. © 2012 IFIP.

TCP behavior over a greened network / A., Sassu; C., Scarso; Cuomo, Francesca. - (2012), pp. 1-5. (Intervento presentato al convegno 2nd International Conference on Sustainable Internet and ICT for Sustainability, SustainIT 2012 tenutosi a Pisa; Italy nel 4 October 2012 through 5 October 2012).

TCP behavior over a greened network

CUOMO, Francesca
2012

Abstract

Recent works analyze the energy saving improvements of greened networks. The main idea is to define algorithms able to put some network links or devices into sleep mode for saving the used energy. This can achieved by adopting power-aware traffic engineering to route traffic towards a subset of links or to consider topology-based and traffic-based pruning mechanisms. These approaches are very promising as for the energy saving and the overall network performance remain satisfactory, however the question is: are the per-flow traffic performance still guaranteed? How does TCP perform in such a greened network? In this paper we analyze the performance of different versions of TCP in a network where energy savings are achieved by the use of one of the algorithm, namely ESTOP, defined to prune the IP network on the basis of network topological characteristics. The performance results show that the behavior of that TCP versions depending on the round trip time, namely Reno and Cubic, are affected by the link pruning in an expected way. This may allow to use these pruning techniques with a suitable control on the per-flow performance. The tradeoff between energy saving and TCP through-put loss is analyzed. © 2012 IFIP.
2012
2nd International Conference on Sustainable Internet and ICT for Sustainability, SustainIT 2012
green networks; energy saving; green interne; tcp performance
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
TCP behavior over a greened network / A., Sassu; C., Scarso; Cuomo, Francesca. - (2012), pp. 1-5. (Intervento presentato al convegno 2nd International Conference on Sustainable Internet and ICT for Sustainability, SustainIT 2012 tenutosi a Pisa; Italy nel 4 October 2012 through 5 October 2012).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/484027
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