@techreport{acharya-ipsofacto-mpls-mcast-00,
    number =    {draft-acharya-ipsofacto-mpls-mcast-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-acharya-ipsofacto-mpls-mcast/00/},
    author =    {Arup Acharya and Frederic Griffoul and Furquan Ansari},
    title =     {{IP Multicast Support in MPLS Networks}},
    pagetotal = 22,
    year =      1999,
    month =     feb,
    day =       25,
    abstract =  {Multicast support in a MPLS network has yet to be defined. This document discusses both dense-mode and sparse-mode IP multicast within the context of a MPLS network. Unlike unicast routing, dense-mode multicast routing trees are established in a data-driven manner and it is not possible to topologically aggregate such trees, which are rooted at different sources. In sparse-mode multicast, source-specific trees may coexist with a core/shared tree, and it is not possible to assign a common label to traffic from different sources on a branch of the shared tree. This leads us to suggest a per-source traffic-driven label allocation scheme for supporting all three types of multicast (dense mode, shared tree, source tree) routing trees in a MPLS network.},
}