%% You should probably cite draft-li-sfc-hhsfc-08 instead of this revision.
@techreport{li-sfc-hhsfc-04,
    number =    {draft-li-sfc-hhsfc-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-li-sfc-hhsfc/04/},
    author =    {Guanglei Li and Guanwen Li and Taixin Li and Qi Xu and Hua-chun Zhou},
    title =     {{Hybrid Hierarchical Multi-Domain Service Function chaining}},
    pagetotal = 11,
    year =      2018,
    month =     apr,
    day =       3,
    abstract =  {This document describes a Hybrid Hierarchical Multi-Domain Service Function Chaining (hhSFC) architecture that extends Service Function Chaining (SFC) to multiple domains with different technology, administration or ownership. The goals of Hybrid Hierarchical SFC are to reduce the complexity of the control plane in a single domain and make the negotiation between different domains possible.},
}