%% You should probably cite draft-xu-virtual-subnet-11 instead of this revision.
@techreport{xu-virtual-subnet-07,
    number =    {draft-xu-virtual-subnet-07},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-xu-virtual-subnet/07/},
    author =    {Xiaohu Xu and Susan Hares},
    title =     {{Virtual Subnet: A Host Route based Subnet Extension Solution}},
    pagetotal = 13,
    year =      2012,
    month =     mar,
    day =       12,
    abstract =  {This document describes a host route based subnet extension solution referred to as Virtual Subnet, which mainly reuses existing BGP/MPLS IP VPN {[}RFC4364{]} and ARP proxy {[}RFC925{]}{[}RFC1027{]} technologies. Virtual Subnet provides a scalable approach for interconnecting geographically dispersed cloud data centers.},
}