%% You should probably cite draft-ietf-mpls-tp-gach-gal instead of this I-D.
@techreport{bocci-mpls-tp-gach-gal-00,
    number =    {draft-bocci-mpls-tp-gach-gal-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-bocci-mpls-tp-gach-gal/00/},
    author =    {Rahul Aggarwal and Martin Vigoureux and George Swallow and Matthew Bocci and David Ward},
    title =     {{MPLS Generic Associated Channel}},
    pagetotal = 16,
    year =      2008,
    month =     oct,
    day =       27,
    abstract =  {This document generalises the applicability of the pseudowire Associated Channel Header (ACH), enabling the realization of a control channel associated to MPLS Label Switched Paths (LSP), MPLS pseudowires (PW) and MPLS Sections. In order to identify the presence of this G-ACH, this document also assigns of one of the reserved MPLS label values to the 'Generic Alert Label (GAL)', to be used as a label based exception mechanism.},
}