On the design of scalable, self-configuring virtual networks

  • Wolinsky D
  • Liu Y
  • Juste P
 et al. 
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Virtual networks (VNs) provide methods that simplify resource management, deal with connectivity constraints, and support legacy applications in distributed systems, by enabling global addressability of VN-connected machines through either a common layer 2 Ethernet or a NAT-free layer 3 IP network. This paper presents a novel VN design that supports dynamic, seamless addition of new resources with emphasis on scalability in a unified private IP address space. Key features of this system are: (1) Scalable connectivity via a P2P overlay with the ability to bypass overlay routing in LAN communications, (2) support for static and dynamic address allocation in conjunction with virtual nameservers through a distributed data store, and (3) support for transparent migration of IP endpoints across wide-area networks. The approach is validated by a prototype implementation which has been deployed in grid and cloud environments. We present both a quantitative and qualitative discussion of our findings.

Author-supplied keywords

  • cloud computing;grid computing;local area networks

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  • D I Wolinsky

  • Y Liu

  • P S Juste

  • G Venkatasubramanian

  • R Figueiredo

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