%% You should probably cite rfc9974 instead of this I-D.
@techreport{ietf-bier-oam-requirements-21,
    number =    {draft-ietf-bier-oam-requirements-21},
    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-bier-oam-requirements/21/},
    author =    {Greg Mirsky and Nagendra Kumar Nainar and Mach Chen and Santosh Pallagatti},
    title =     {{Operations, Administration and Maintenance (OAM) Requirements for Bit Index Explicit Replication (BIER) Layer}},
    pagetotal = 10,
    year =      2025,
    month =     nov,
    day =       23,
    abstract =  {This document specifies a list of functional requirements for Operations, Administration, and Maintenance mechanisms, protocols, and tools that support operations in the Bit Index Explicit Replication layer of a network.},
}