%% You should probably cite rfc9263 instead of this I-D.
@techreport{ietf-sfc-nsh-tlv-06,
    number =    {draft-ietf-sfc-nsh-tlv-06},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-sfc-nsh-tlv/06/},
    author =    {Yuehua Wei and Uri Elzur and Sumandra Majee and Carlos Pignataro},
    title =     {{Network Service Header Metadata Type 2 Variable-Length Context Headers}},
    pagetotal = 11,
    year =      2021,
    month =     may,
    day =       13,
    abstract =  {Service Function Chaining (SFC) uses the Network Service Header (NSH) {[}RFC8300{]} to steer and provide context Metadata (MD) with each packet. Such Metadata can be of various Types including MD Type 2 variable length context headers. This document specifies several such context headers that can be used within a service function path.},
}