%% You should probably cite draft-ietf-idr-mpbgp-extension-4map6 instead of this I-D.
@techreport{xie-idr-mpbgp-extension-4map6-03,
    number =    {draft-xie-idr-mpbgp-extension-4map6-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-xie-idr-mpbgp-extension-4map6/03/},
    author =    {Chongfeng Xie and Guozhen Dong and Xing Li and Congxiao Bao and Guoliang Han and Linjian Song and Zhongfeng Guo},
    title =     {{MP-BGP Extension and the Procedures for IPv4/IPv6 Mapping Advertisement}},
    pagetotal = 15,
    year =      ,
    month =     ,
    day =       ,
    abstract =  {This document defines MP-BGP extension and the procedures for IPv4 service delivery in multi-domain IPv6-only underlay networks. It defines a new BGP path attribute known as the "4map6" in conjunction with the existing AFI/SAFI in IPv6-only routing paradigm for transferring IPv4/IPv6 address mapping rule within and across IPv6-only domains. In addition, the behavior of each type of network node in this extension is also illustrated.},
}