%% You should probably cite draft-song-ippm-postcard-based-telemetry-16 instead of this revision.
@techreport{song-ippm-postcard-based-telemetry-04,
    number =    {draft-song-ippm-postcard-based-telemetry-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-song-ippm-postcard-based-telemetry/04/},
    author =    {Haoyu Song and Tianran Zhou and Zhenbin Li and Jongyoon Shin and Kyungtae Lee},
    title =     {{Postcard-based On-Path Flow Data Telemetry}},
    pagetotal = 17,
    year =      2019,
    month =     jun,
    day =       12,
    abstract =  {The Postcard-Based Telemetry (PBT) allows network OAM applications to collect telemetry data about any user packet. Unlike the E2E and trace modes in in-situ OAM (IOAM), PBT does not require user packets to carry any telemetry data, but directly exports the telemetry data from network nodes to a collector through separated OAM packets called postcards. Two variations of PBT, PBT-I and PBT-M, are described. PBT-I requires inserting an instruction header to user packets to guide the data collection. PBT-I is designed as another mode of IOAM, Per-Hop Postcard (PHP), to complement the existing operational modes of IOAM. PBT-M only marks the user packets or configure the flow filter to invoke the data collection. PBT-M also provides a complement to IOAM and address several implementation and deployment challenges of it.},
}