%% You should probably cite draft-ietf-mpls-rfc4379bis instead of this I-D.
@techreport{smack-mpls-rfc4379bis-09,
    number =    {draft-smack-mpls-rfc4379bis-09},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-smack-mpls-rfc4379bis/09/},
    author =    {Kireeti Kompella and Carlos Pignataro and Nagendra Kumar Nainar and Sam Aldrin and Mach Chen},
    title =     {{Detecting Multi-Protocol Label Switched (MPLS) Data Plane Failures}},
    pagetotal = 52,
    year =      2015,
    month =     dec,
    day =       18,
    abstract =  {This document describes a simple and efficient mechanism that can be used to detect data plane failures in Multi-Protocol Label Switching (MPLS) Label Switched Paths (LSPs). There are two parts to this document: information carried in an MPLS "echo request" and "echo reply" for the purposes of fault detection and isolation, and mechanisms for reliably sending the echo reply. This document obsoletes RFC 4379.},
}