%% You should probably cite rfc9013 instead of this I-D.
@techreport{ietf-ospf-encapsulation-cap-07,
    number =    {draft-ietf-ospf-encapsulation-cap-07},
    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-ospf-encapsulation-cap/07/},
    author =    {Xiaohu Xu and Bruno Decraene and Robert Raszuk and Luis M. Contreras and Luay Jalil},
    title =     {{Advertising Tunnel Encapsulation Capabilities in OSPF}},
    pagetotal = 9,
    year =      2017,
    month =     sep,
    day =       11,
    abstract =  {Networks use tunnels for a variety of reasons. A large variety of tunnel types are defined and the ingress tunnel router needs to select a type of tunnel which is supported by the egress tunnel router and itself. This document defines how to advertise the tunnel encapsulation capabilities of egress tunnel routers in OSPF Router Information Link State Advertisement (LSAs).},
}