%% You should probably cite rfc8538 instead of this I-D.
@techreport{ietf-idr-bgp-gr-notification-15,
    number =    {draft-ietf-idr-bgp-gr-notification-15},
    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-idr-bgp-gr-notification/15/},
    author =    {Keyur Patel and Rex Fernando and John Scudder and Jeffrey Haas},
    title =     {{Notification Message support for BGP Graceful Restart}},
    pagetotal = 9,
    year =      2018,
    month =     apr,
    day =       10,
    abstract =  {The BGP Graceful Restart mechanism defined in RFC 4724 limits the usage of BGP Graceful Restart to BGP protocol messages other than a BGP NOTIFICATION message. This document updates RFC 4724 by defining an extension that permits the Graceful Restart procedures to be performed when the BGP speaker receives a BGP NOTIFICATION Message or the Hold Time expires. This document also defines a new BGP NOTIFICATION Cease Error subcode whose effect is to request a full session restart instead of a Graceful Restart.},
}