%% You should probably cite rfc9516 instead of this I-D.
@techreport{ietf-sfc-multi-layer-oam-28,
    number =    {draft-ietf-sfc-multi-layer-oam-28},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-sfc-multi-layer-oam/28/},
    author =    {Greg Mirsky and Wei Meng and Ting Ao and Bhumip Khasnabish and Kent Leung and Gyan Mishra},
    title =     {{Active Operations, Administration, and Maintenance (OAM) for Service Function Chaining (SFC)}},
    pagetotal = 30,
    year =      2023,
    month =     jul,
    day =       7,
    abstract =  {A set of requirements for active Operations, Administration, and Maintenance (OAM) for Service Function Chaining (SFC) in a network is presented in this document. Based on these requirements, an encapsulation of active OAM messages in SFC and a mechanism to detect and localize defects are described.},
}