%% You should probably cite draft-ietf-mpls-forwarding instead of this I-D.
@techreport{villamizar-mpls-forwarding-00,
    number =    {draft-villamizar-mpls-forwarding-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-villamizar-mpls-forwarding/00/},
    author =    {Curtis Villamizar and Kireeti Kompella},
    title =     {{MPLS Forwarding Compliance and Performance Requirements}},
    pagetotal = 17,
    year =      2012,
    month =     oct,
    day =       8,
    abstract =  {This document provides guidelines for implementors regarding MPLS forwarding and a basis for evaluations of forwarding implementations. Guidelines cover basic MPLS forwarding, forwarding when a deep MPLS label stack is encountered, MPLS UHP operations which require one or more label POP plus a PUSH, guidelines for hashing an MPLS stack and payload for multipath, and conformance and performance requirements for recent pseudowire and MPLS standards.},
}