Survey Report on Protocol Independent Multicast - Sparse Mode (PIM-SM) Implementations and Deployments
RFC 7063

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Internet Engineering Task Force (IETF)                          L. Zheng
Request for Comments: 7063                           Huawei Technologies
Category: Informational                                         Z. Zhang
ISSN: 2070-1721                                         Juniper Networks
                                                               R. Parekh
                                                           Cisco Systems
                                                           December 2013

 Survey Report on Protocol Independent Multicast - Sparse Mode (PIM-SM)
                    Implementations and Deployments

Abstract

   This document provides supporting documentation to advance the IETF
   stream's Protocol Independent Multicast - Sparse Mode (PIM-SM)
   protocol from Proposed Standard to Internet Standard.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   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).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7063.

Copyright Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Zheng, et al.                 Informational                     [Page 1]
RFC 7063                 Survey Report on PIM-SM           December 2013

Table of Contents

   1. Motivation ......................................................3
      1.1. Overview of PIM-SM .........................................3
      1.2. Requirements of RFCs 2026 and 6410 .........................3
   2. Survey on Implementations and Deployments .......................4
      2.1. Methodology ................................................4
      2.2. Operator Responses .........................................4
           2.2.1. Description of PIM-SM Deployments ...................4
           2.2.2. PIM-SM Deployment with Other Multicast
                  Technologies ........................................4
           2.2.3. PIM-SM Rendezvous Points (RPs) and RP
                  Discovery Mechanisms ................................4
      2.3. Vendor Responses ...........................................5
           2.3.1. Implementations Based on RFCs 4601 and 2362 .........5
           2.3.2. Lack of (*,*,RP) and PMBR Implementations ...........5
           2.3.3. Implementations of Other Features of RFC 4601 .......5
      2.4. Key Findings ...............................................6
   3. Security Considerations .........................................6
   4. Acknowledgements ................................................6
   5. References ......................................................6
      5.1. Normative References .......................................6
      5.2. Informative References .....................................7
   Appendix A. Questionnaire ..........................................8
     A.1. PIM Survey for Operators ....................................8
     A.2. PIM Survey for Implementors ................................10

Zheng, et al.                 Informational                     [Page 2]
RFC 7063                 Survey Report on PIM-SM           December 2013

1.  Motivation

1.1.  Overview of PIM-SM

   Protocol Independent Multicast - Sparse Mode (PIM-SM) was first
   published as [RFC2117] in 1997.  This version was then obsoleted by
   [RFC2362] in 1998.  The protocol was classified as Experimental in
   both documents.  The protocol specification was then rewritten in
   whole and advanced to Proposed Standard as [RFC4601] in 2006.
   Considering its multiple independent implementations developed and
   sufficient successful operational experience gained, the PIM WG
   decided to advance the PIM-SM protocol to Internet Standard.  The
   conducted survey and this document are part of the work.

1.2.  Requirements of RFCs 2026 and 6410

   [RFC2026] defines the stages in the standardization process, the