%% You should probably cite draft-li-lsr-isis-area-abstraction instead of this I-D.
@techreport{li-area-abstraction-00,
    number =    {draft-li-area-abstraction-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-li-area-abstraction/00/},
    author =    {Tony Li},
    title =     {{Level 1 Area Abstraction for IS-IS}},
    pagetotal = 6,
    year =      2018,
    month =     jun,
    day =       29,
    abstract =  {Link state routing protocols have hierarchical abstraction already built into them. However, when lower levels are used for transit, they must expose their internal topologies, leading to scale issues. To avoid this, this document discusses extensions to the IS-IS routing protocol that would allow level 1 areas to provide transit, yet only inject an abstraction of the topology into level 2.},
}