%% You should probably cite draft-ietf-teas-enhanced-vpn instead of this I-D.
@techreport{dong-teas-enhanced-vpn-03,
    number =    {draft-dong-teas-enhanced-vpn-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-dong-teas-enhanced-vpn/03/},
    author =    {Jie Dong and Stewart Bryant and Zhenqiang Li and Takuya Miyasaka and Young Lee},
    title =     {{A Framework for Enhanced Virtual Private Networks (VPN+) Service}},
    pagetotal = 36,
    year =      2018,
    month =     nov,
    day =       15,
    abstract =  {This document specifies a framework for using existing, modified and potential new networking technologies as components to provide an Enhanced Virtual Private Networks (VPN+) service. The purpose is to enable VPNs to support the needs of new applications, particularly applications that are associated with 5G services. Typically, VPN+ can be used to form the underpinning of network slicing, but will also be of use in its own right.},
}