%% You should probably cite draft-dong-teas-nrp-scalability instead of this I-D.
@techreport{dong-teas-enhanced-vpn-vtn-scalability-02,
    number =    {draft-dong-teas-enhanced-vpn-vtn-scalability-02},
    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-vtn-scalability/02/},
    author =    {Jie Dong and Zhenbin Li and Fengwei Qin and Guangming Yang and Jim Guichard},
    title =     {{Scalability Considerations for Enhanced VPN (VPN+)}},
    pagetotal = 14,
    year =      ** No value found for 'doc.pub_date.year' **,
    month =     ** No value found for 'doc.pub_date' **,
    day =       ** No value found for 'doc.pub_date.day' **,
    abstract =  {Enhanced VPN (VPN+) aims to provide enhancements to existing VPN services to support the needs of new applications, particularly including the applications that are associated with 5G services. VPN+ could be used to provide network slicing, and may also be of use in more generic scenarios, such as enterprise services which have demanding requirement. With the requirement for VPN+ services increase, scalability would become an important factor for the deployment of VPN+. This document describes the scalability considerations in the control plane and data plane to enable VPN+ services, some optimization mechanisms are also described.},
}