%% You should probably cite draft-liu-spring-bfd-srv6-policy-encap instead of this I-D.
@techreport{liu-bfd-srv6-policy-encap-01,
    number =    {draft-liu-bfd-srv6-policy-encap-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-liu-bfd-srv6-policy-encap/01/},
    author =    {Yisong Liu and Weiqiang Cheng and Changwang Lin and Mengxiao Chen and Xiao Min},
    title =     {{Encapsulation of BFD for SRv6 Policy}},
    pagetotal = 16,
    year =      2022,
    month =     jul,
    day =       11,
    abstract =  {Bidirectional Forwarding Detection (BFD) mechanisms can be used for fast detection of failures in the forwarding path of SR Policy. This document describes the encapsulation of BFD for SRv6 Policy, which can be applied for both S-BFD and U-BFD. The BFD packets may be encapsulated in transport mode or tunnel mode.},
}