%% You should probably cite draft-ietf-l2vpn-spbm-evpn instead of this I-D.
@techreport{allan-l2vpn-spbm-evpn-04,
    number =    {draft-allan-l2vpn-spbm-evpn-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-allan-l2vpn-spbm-evpn/04/},
    author =    {David Allan and Jeff Tantsura and Don Fedyk and Ali Sajassi},
    title =     {{802.1aq Support over EVPN}},
    pagetotal = 10,
    year =      2013,
    month =     jul,
    day =       15,
    abstract =  {This document describes how Ethernet Shortest Path Bridging MAC mode (802.1aq) can be combined with EVPN in a way that interworks with PBB-PEs as described in the PBB-EVPN solution in a way that permits operational isolation of each Ethernet network subtending an EVPN core while supporting full interworking between the different variations of Ethernet operation.},
}