%% You should probably cite draft-ietf-ipfix-file instead of this I-D.
@techreport{trammell-ipfix-file-05,
    number =    {draft-trammell-ipfix-file-05},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-trammell-ipfix-file/05/},
    author =    {Brian Trammell},
    title =     {{An IPFIX-Based File Format}},
    pagetotal = 48,
    year =      2007,
    month =     nov,
    day =       8,
    abstract =  {This document describes a file format for the storage of flow data based upon the IPFIX message format. It proposes a set of requirements for flat-file, binary flow data file formats, then applies the IPFIX message format to these requirements to build a new file format. This IPFIX-based file format is designed to facilitate interoperability and reusability among a wide variety of flow storage, processing, and analysis tools.},
}