%% You should probably cite rfc8364 instead of this I-D.
@techreport{ietf-pim-source-discovery-bsr-12,
    number =    {draft-ietf-pim-source-discovery-bsr-12},
    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-pim-source-discovery-bsr/12/},
    author =    {IJsbrand Wijnands and Stig Venaas and Michael Brig and Anders Jonasson},
    title =     {{PIM Flooding Mechanism (PFM) and Source Discovery (SD)}},
    pagetotal = 18,
    year =      2018,
    month =     jan,
    day =       31,
    abstract =  {Protocol Independent Multicast - Sparse Mode (PIM-SM) uses a Rendezvous Point (RP) and shared trees to forward multicast packets from new sources. Once Last-Hop Routers (LHRs) receive packets from a new source, they may join the Shortest Path Tree (SPT) for the source for optimal forwarding. This document defines a new mechanism that provides a way to support PIM-SM without the need for PIM registers, RPs, or shared trees. Multicast source information is flooded throughout the multicast domain using a new generic PIM Flooding Mechanism (PFM). This allows LHRs to learn about new sources without receiving initial data packets.},
}