%% You should probably cite rfc8772 instead of this I-D.
@techreport{chz-simple-cu-separation-bng-protocol-06,
    number =    {draft-chz-simple-cu-separation-bng-protocol-06},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-chz-simple-cu-separation-bng-protocol/06/},
    author =    {Shujun Hu and Donald E. Eastlake 3rd and Fengwei Qin and Tee Mong Chua and Daniel Huang},
    title =     {{The China Mobile, Huawei, and ZTE Broadband Network Gateway (BNG) Simple Control and User Plane Separation Protocol (S-CUSP)}},
    pagetotal = 124,
    year =      2019,
    month =     oct,
    day =       19,
    abstract =  {A Broadband Network Gateway (BNG) in a fixed wireline access network is an Ethernet-centric IP edge router and the aggregation point for subscriber traffic. Control and User Plane Separation (CUPS) for such a BNG improves flexibility and scalability but requires various communication between the User Plane (UP) and the Control Plane (CP). China Mobile, Huawei Technologies, and ZTE have developed a simple CUPS control channel protocol to support such communication: the Simple Control and User Plane Separation Protocol (S-CUSP). S-CUSP is defined in this document. This document is not an IETF standard and does not have IETF consensus. S-CUSP is presented here to make its specification conveniently available to the Internet community to enable diagnosis and interoperability.},
}