%% You should probably cite rfc9183 instead of this I-D.
@techreport{ietf-trill-multilevel-single-nickname-14,
    number =    {draft-ietf-trill-multilevel-single-nickname-14},
    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-trill-multilevel-single-nickname/14/},
    author =    {Mingui Zhang and Donald E. Eastlake 3rd and Radia Perlman and Margaret Cullen and Hongjun Zhai},
    title =     {{Transparent Interconnection of Lots of Links (TRILL) Single Area Border RBridge Nickname for Multilevel}},
    pagetotal = 20,
    year =      2021,
    month =     jul,
    day =       12,
    abstract =  {A major issue in multilevel TRILL is how to manage RBridge nicknames. In this document, area border RBridges use a single nickname in both Level 1 and Level 2. RBridges in Level 2 must obtain unique nicknames but RBridges in different Level 1 areas may have the same nicknames.},
}