%% You should probably cite draft-penno-sfc-packet-03 instead of this revision.
@techreport{penno-sfc-packet-00,
    number =    {draft-penno-sfc-packet-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-penno-sfc-packet/00/},
    author =    {Reinaldo Penno and Carlos Pignataro and Chui-Tin Yen and Eric Wang and Kent Leung},
    title =     {{Packet Generation in Service Function Chains}},
    pagetotal = 19,
    year =      2015,
    month =     sep,
    day =       21,
    abstract =  {Service Functions (e.g., Firewall, NAT, Proxies and Intrusion Prevention Systems) generate packets in the reverse flow direction to the source of the current in-process packet/flow. In this document we discuss and propose how to support this required functionality within the SFC framework.},
}