%% You should probably cite draft-ietf-bess-l2l3-vpn-mcast-mib instead of this I-D.
@techreport{ietf-l3vpn-l2l3-vpn-mcast-mib-01,
    number =    {draft-ietf-l3vpn-l2l3-vpn-mcast-mib-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-ietf-l3vpn-l2l3-vpn-mcast-mib/01/},
    author =    {Zhaohui (Jeffrey) Zhang},
    title =     {{L2L3 VPN Multicast MIB}},
    pagetotal = 10,
    year =      2013,
    month =     oct,
    day =       14,
    abstract =  {This memo defines an experimental 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 VPLS and VPN Multicast.},
}