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WAVNet: Wide-Area Network Virtualization Technique for Virtual Private Cloud

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5 Author(s)
Zheming Xu ; Dept. of Comput. Sci., Univ. of Hong Kong, Hong Kong, China ; Sheng Di ; Weida Zhang ; Luwei Cheng
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A Virtual Private Cloud (VPC) is a secure collection of computing, storage and network resources spanning multiple sites over Wide Area Network (WAN). With VPC, computation and services are no longer restricted to a fixed site but can be relocated dynamically across geographical sites to improve manageability, performance and fault tolerance. We propose WAVNet, a layer 2 virtual private network (VPN) which supports virtual machine live migration over WAN to realize mobility of execution environment across multiple security domains. WAVNet adopts a UDP hole punching technique to achieve direct network connection between two Internet hosts without special router configuration. We evaluate our design in an emulated WAN with 64 hosts and also in a real WAN environment with 10 machines located at seven different sites across the Asia-Pacific region. The experimental results show that WAVNet not only achieves close-to-native host-to-host network bandwidth and latency, but also guarantees more effective VM live migration than existing solutions.

Published in:

2011 International Conference on Parallel Processing

Date of Conference:

13-16 Sept. 2011