%% You should probably cite rfc7623 instead of this I-D.
@techreport{ietf-l2vpn-pbb-evpn-10,
    number =    {draft-ietf-l2vpn-pbb-evpn-10},
    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-l2vpn-pbb-evpn/10/},
    author =    {Ali Sajassi and Samer Salam and Dr. Nabil N. Bitar and Aldrin Isaac and Wim Henderickx},
    title =     {{Provider Backbone Bridging Combined with Ethernet VPN (PBB-EVPN)}},
    pagetotal = 23,
    year =      2015,
    month =     may,
    day =       14,
    abstract =  {This document discusses how Ethernet Provider Backbone Bridging (PBB) can be combined with Ethernet VPN (EVPN) in order to reduce the number of BGP MAC Advertisement routes by aggregating Customer/Client MAC (C-MAC) addresses via Provider Backbone MAC (B-MAC) address, provide client MAC address mobility using C-MAC aggregation, confine the scope of C-MAC learning to only active flows, offer per-site policies, and avoid C-MAC address flushing on topology changes. The combined solution is referred to as PBB-EVPN.},
}