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Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol Specification (Revised) (RFC7761)

IP.com Disclosure Number: IPCOM000245490D
Original Publication Date: 2016-Mar-01
Included in the Prior Art Database: 2016-Mar-12

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

B. Fenner: AUTHOR [+7]


This document specifies a protocol for efficiently routing multicast groups that may span wide-area (and inter-domain) internets. This protocol is called Protocol Independent Multicast - Sparse Mode (PIM-SM) because, although it may use the underlying unicast routing to provide reverse-path information for multicast tree building, it is not dependent on any particular unicast routing protocol.

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Internet Engineering Task Force (IETF)                         B. Fenner

Request for Comments: 7761                               Arista Networks

STD: 83                                                       M. Handley

Obsoletes: 4601                                                      UCL

Category: Standards Track                                    H. Holbrook

ISSN: 2070-1721                                              I. Kouvelas

                                                         Arista Networks

                                                               R. Parekh

                                                     Cisco Systems, Inc.

                                                                Z. Zhang

                                                        Juniper Networks

                                                                L. Zheng

                                                     Huawei Technologies

                                                              March 2016

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


   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 it optionally    creates shortest-path trees per source.

   This document obsoletes RFC 4601 by replacing it, addresses the    errata filed against it, removes the optional (*,*,RP), PIM Multicast    Border Router features and authentication using IPsec that lack    sufficient deployment experience (see Appendix A), and moves the PIM    specification to Internet Standard.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information...