%% You should probably cite draft-ietf-l2vpn-vpls-inter-domain-redundancy instead of this I-D.
@techreport{liu-l2vpn-vpls-inter-domain-redundancy-04,
    number =    {draft-liu-l2vpn-vpls-inter-domain-redundancy-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-liu-l2vpn-vpls-inter-domain-redundancy/04/},
    author =    {Zhihua Liu and Lizhong Jin and Ran Chen and Dennis Cai and Samer Salam},
    title =     {{Redundancy provisioning for VPLS Inter-domain}},
    pagetotal = 10,
    year =      2012,
    month =     jul,
    day =       2,
    abstract =  {In many VPLS deployments based on RFC4762, inter-domain connectivity has been deployed without node redundancy, or with node redundancy in a single domain. This document describes a solution for inter-domain VPLS based on RFC4762 with node and link redundancy in both domains.},
}