%% You should probably cite draft-ietf-sfc-multi-layer-oam instead of this I-D.
@techreport{wang-sfc-multi-layer-oam-02,
    number =    {draft-wang-sfc-multi-layer-oam-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-wang-sfc-multi-layer-oam/02/},
    author =    {Chunming Wu and Cui Wang and Wei Meng and Bhumip Khasnabish},
    title =     {{Multi-Layering OAM for Service function Chaining}},
    pagetotal = 13,
    year =      2015,
    month =     jun,
    day =       15,
    abstract =  {This document tries to discuss some problems in SFC OAM framework document and proposes the SFC OAM multi-layering requirements in SFC domain to improve the troubleshooting efficiency.},
}