%% You should probably cite draft-ietf-isis-rfc4971bis instead of this I-D.
@techreport{ginsberg-isis-rfc4971bis-00,
    number =    {draft-ginsberg-isis-rfc4971bis-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ginsberg-isis-rfc4971bis/00/},
    author =    {Les Ginsberg and Stefano Previdi and Mach Chen},
    title =     {{IS-IS Extensions for Advertising Router Info}},
    pagetotal = 9,
    year =      2015,
    month =     oct,
    day =       7,
    abstract =  {This document defines a new optional Intermediate System to Intermediate System (IS-IS) TLV named CAPABILITY, formed of multiple sub-TLVs, which allows a router to announce its capabilities within an IS-IS level or the entire routing domain.},
}