On the design of scalable, self-configuring virtual networks

  • Authors:
  • David Isaac Wolinsky;Yonggang Liu;Pierre St. Juste;Girish Venkatasubramanian;Renato Figueiredo

  • Affiliations:
  • University of Florida;University of Florida;University of Florida;University of Florida;University of Florida

  • Venue:
  • Proceedings of the Conference on High Performance Computing Networking, Storage and Analysis
  • Year:
  • 2009

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Abstract

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 widearea 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.