%% You should probably cite draft-ietf-l2vpn-etree-frwk instead of this I-D.
@techreport{key-l2vpn-etree-frwk-06,
    number =    {draft-key-l2vpn-etree-frwk-06},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-key-l2vpn-etree-frwk/06/},
    author =    {Raymond Key and Simon DeLord and Lucy Yong and Lizhong Jin and Yuji Kamite and Wim Henderickx},
    title =     {{A Framework for E-Tree Service over MPLS Network}},
    pagetotal = 28,
    year =      2011,
    month =     oct,
    day =       16,
    abstract =  {This document proposes a solution framework for supporting Metro Ethernet Forum (MEF) Ethernet Tree (E-Tree) services over a Multiprotocol Label Switching (MPLS) network. The objective is to provide a simple and effective approach to emulate E-Tree services in addition to Ethernet LAN (E-LAN) services on an existing MPLS network.},
}