%% You should probably cite rfc8397 instead of this I-D.
@techreport{ietf-trill-multilevel-unique-nickname-06,
    number =    {draft-ietf-trill-multilevel-unique-nickname-06},
    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-unique-nickname/06/},
    author =    {Mingui Zhang and Donald E. Eastlake 3rd and Radia Perlman and Hongjun Zhai and Dongxin Liu},
    title =     {{TRILL Multilevel Using Unique Nicknames}},
    pagetotal = 15,
    year =      2018,
    month =     mar,
    day =       5,
    abstract =  {TRILL routing can be extended to support multiple levels by building on the multilevel feature of IS-IS routing. Depending on how nicknames are managed, there are two primary alternatives to realize TRILL multilevel: the unique nickname approach and the aggregated nickname approach as discussed in RFC 8243. This document specifies a unique nickname approach. This approach gives unique nicknames to all TRILL switches across the multilevel TRILL campus.},
}