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A Container-Based I/O for Virtual Routers: Experimental and Analytical Evaluations

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4 Author(s)
Manel Bourguiba ; LIP6, Pierre & Marie Curie Univ., Paris, France ; Kamel Haddadou ; Ines El Korbi ; Guy Pujolle

Network virtualization is a promising technology that offers high levels of flexibility, isolation, extensibility and cost-effectiveness. In this paper, we focus on router virtualization. We evaluate the forwarding performance of virtual routers when the data plane runs in the guests. This scenario offers a high level of isolation and flexibility, however, it suffers from performance limitations due to the virtualization overhead. We show that the he I/O communication between the driver domain and the guests is the bottleneck. To overcome this limitation, we propose a new packets aggregation mechanism that transfers groups of packets between the driver domain and the guests. This enhancement makes the forwarding performance of one guest scale up to 1600 Kp/s. Furthermore, we propose a dimensioning tool in order to determine the maximum achievable throughput with regard to the container size.

Published in:

2011 IEEE International Conference on Communications (ICC)

Date of Conference:

5-9 June 2011