@misc{rfc5331,
    series =    {Request for Comments},
    number =    5331,
    howpublished =  {RFC 5331},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC5331},
    url =       {https://www.rfc-editor.org/info/rfc5331},
    author =    {Yakov Rekhter and Rahul Aggarwal and Eric C. Rosen},
    title =     {{MPLS Upstream Label Assignment and Context-Specific Label Space}},
    pagetotal = 13,
    year =      2008,
    month =     aug,
    abstract =  {RFC 3031 limits the MPLS architecture to downstream-assigned MPLS labels. This document introduces the notion of upstream-assigned MPLS labels. It describes the procedures for upstream MPLS label assignment and introduces the concept of a "Context-Specific Label Space". {[}STANDARDS-TRACK{]}},
}