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

The information below is for an old version of the document
Document Type Expired Internet-Draft (pim WG)
Last updated 2014-04-20 (latest revision 2013-10-17)
Replaces draft-parekh-pim-rfc4601bis
Stream IETF
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
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IESG IESG state Expired
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This Internet-Draft is no longer active.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.


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

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