@techreport{dizhou-pim-umf-problem-statement-01,
    number =    {draft-dizhou-pim-umf-problem-statement-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-dizhou-pim-umf-problem-statement/01/},
    author =    {Di Zhou and DENG Hui and Yang Shi and Hui Liu and Indranil Bhattacharya},
    title =     {{Unnecessary Multicast Flooding Problem Statement}},
    pagetotal = 16,
    year =      2010,
    month =     oct,
    day =       19,
    abstract =  {This document describes the unnecessary multicast stream flooding problem in the link layer switches between multicast source and PIM First Hop Router (FHR). The IGMP-Snooping Switch will forward multicast streams to router ports, and the PIM FHR must receive all multicast streams even if there is no request from receiver. This often leads to waste of switchs' cache and link bandwidth when the multicast streams are not actually required. This document details the problem and defines design goals for a generic mechanism to restrain the unnecessary multicast stream flooding.},
}