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

Manel Bourguiba 1 Kamel Haddadou Ines El Korbi Guy Pujolle 1
1 Phare
LIP6 - Laboratoire d'Informatique de Paris 6
Abstract : 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.
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Manel Bourguiba, Kamel Haddadou, Ines El Korbi, Guy Pujolle. A Container-based I/O for Virtual Routers: Experimental and Analytical Evaluations. IEEE International Conference on Communications, ICC, Jun 2011, Kyoto, Japan. pp.1-6, ⟨10.1109/icc.2011.5962554⟩. ⟨hal-01282504⟩



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