%% You should probably cite draft-ietf-mpls-in-udp instead of this I-D.
@techreport{xu-mpls-in-udp-01,
    number =    {draft-xu-mpls-in-udp-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-xu-mpls-in-udp/01/},
    author =    {Xiaohu Xu and Marshall Eubanks and Lucy Yong and Nischal Sheth and Zhenbin Li},
    title =     {{Encapsulating MPLS in UDP}},
    pagetotal = 8,
    year =      2012,
    month =     may,
    day =       24,
    abstract =  {This document specifies one additional IP-based encapsulation technology for MPLS packets referred to as MPLS-in-UDP, which is intended to facilitate load-balancing the traffic of various MPLS applications such as MPLS-based L2VPN and L3VPN in the core of IP- enabled packet switch networks.},
}