PIM flooding mechanism and source discovery

The information below is for an old version of the document
Document Type Expired Internet-Draft (pim WG)
Authors IJsbrand Wijnands  , Stig Venaas  , Michael Brig  , Anders Jonasson 
Last updated 2016-09-18 (latest revision 2016-03-17)
Replaces draft-wijnands-pim-source-discovery-bsr
Stream Internet Engineering Task Force (IETF)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


PIM Sparse-Mode uses a Rendezvous Point and shared trees to forward multicast packets from new sources. Once last hop routers receive packets from a new source, they may join the Shortest Path Tree for the source for optimal forwarding. This draft defines a new protcol that provides a way to support PIM Sparse Mode (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. This allows last hop routers to learn about new sources without receiving initial data packets.


IJsbrand Wijnands (ice@cisco.com)
Stig Venaas (stig@cisco.com)
Michael Brig (michael.brig@mda.mil)
Anders Jonasson (anders@jomac.se)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)