%% You should probably cite rfc8502 instead of this I-D.
@techreport{ietf-bess-l2l3-vpn-mcast-mib-02,
    number =    {draft-ietf-bess-l2l3-vpn-mcast-mib-02},
    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-bess-l2l3-vpn-mcast-mib/02/},
    author =    {Zhaohui (Jeffrey) Zhang},
    title =     {{L2L3 VPN Multicast MIB}},
    pagetotal = 9,
    year =      2016,
    month =     mar,
    day =       15,
    abstract =  {This memo defines a portion of the Management Information Base for use with network management protocols in the Internet community. In particular, it describes managed objects common to both L2 and IP VPN Multicast.},
}