@misc{rfc4893,
    series =    {Request for Comments},
    number =    4893,
    howpublished =  {RFC 4893},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC4893},
    url =       {https://www.rfc-editor.org/info/rfc4893},
    author =    {Enke Chen and Quaizar Vohra},
    title =     {{BGP Support for Four-octet AS Number Space}},
    pagetotal = 10,
    year =      2007,
    month =     may,
    abstract =  {Currently the Autonomous System (AS) number is encoded as a two-octet entity in BGP. This document describes extensions to BGP to carry the Autonomous System number as a four-octet entity. {[}STANDARDS-TRACK{]}},
}