Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol Specification (Revised)

Document Type Replaced Internet-Draft (individual)
Authors Hugh Holbrook  , Rishabh Parekh  , Isidor Kouvelas  , Mark Handley  , Lianshu Zheng  , Bill Fenner 
Last updated 2011-11-09 (latest revision 2011-07-07)
Replaced by RFC 7761
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies Protocol Independent Multicast - Sparse Mode (PIM-SM). PIM-SM is a multicast routing protocol that can use the underlying unicast routing information base or a separate multicast- capable routing information base. It builds unidirectional shared trees rooted at a Rendezvous Point (RP) per group, and optionally creates shortest-path trees per source. This document addresses errata filed against RFC 4601, and removes the optional (*,*,RP) feature that lacks sufficient deployment experience.


Hugh Holbrook (
Rishabh Parekh (
Isidor Kouvelas (
Mark Handley (
Lianshu Zheng (
Bill Fenner (

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