@misc{rfc5089,
    series =    {Request for Comments},
    number =    5089,
    howpublished =  {RFC 5089},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC5089},
    url =       {https://www.rfc-editor.org/info/rfc5089},
    author =    {Jean-Louis Le Roux and JP Vasseur and Raymond Zhang and Yuichi Ikejiri},
    title =     {{IS-IS Protocol Extensions for Path Computation Element (PCE) Discovery}},
    pagetotal = 17,
    year =      2008,
    month =     jan,
    abstract =  {There are various circumstances where it is highly desirable for a Path Computation Client (PCC) to be able to dynamically and automatically discover a set of Path Computation Elements (PCEs), along with information that can be used by the PCC for PCE selection. When the PCE is a Label Switching Router (LSR) participating in the Interior Gateway Protocol (IGP), or even a server participating passively in the IGP, a simple and efficient way to announce PCEs consists of using IGP flooding. For that purpose, this document defines extensions to the Intermediate System to Intermediate System (IS-IS) routing protocol for the advertisement of PCE Discovery information within an IS-IS area or within the entire IS-IS routing domain. {[}STANDARDS-TRACK{]}},
}