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PIM Group-to-Rendezvous-Point Mapping (RFC6226)

IP.com Disclosure Number: IPCOM000206778D
Original Publication Date: 2011-May-01
Included in the Prior Art Database: 2019-Feb-11
Document File: 11 page(s) / 18K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

B. Joshi: AUTHOR [+2]

Related Documents

10.17487/RFC6226: DOI

Abstract

Each Protocol Independent Multicast - Sparse Mode (PIM-SM) router in a PIM domain that supports Any Source Multicast (ASM) maintains Group-to-RP mappings that are used to identify a Rendezvous Point (RP) for a specific multicast group. PIM-SM has defined an algorithm to choose a RP from the Group-to-RP mappings learned using various mechanisms. This algorithm does not consider the PIM mode and the mechanism through which a Group-to-RP mapping was learned. This document defines a standard algorithm to deterministically choose between several Group-to-RP mappings for a specific group. This document first explains the requirements to extend the Group-to-RP mapping algorithm and then proposes the new algorithm. [STANDARDS-TRACK]

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 15% of the total text.

Internet Engineering Task Force (IETF) B. Joshi Request for Comments: 6226 Infosys Technologies Ltd. Updates: 4601 A. Kessler Category: Standards Track Cisco Systems, Inc. ISSN: 2070-1721 D. McWalter May 2011

PIM Group-to-Rendezvous-Point Mapping

Abstract

Each Protocol Independent Multicast - Sparse Mode (PIM-SM) router in a PIM domain that supports Any Source Multicast (ASM) maintains Group-to-RP mappings that are used to identify a Rendezvous Point (RP) for a specific multicast group. PIM-SM has defined an algorithm to choose a RP from the Group-to-RP mappings learned using various mechanisms. This algorithm does not consider the PIM mode and the mechanism through which a Group-to-RP mapping was learned.

This document defines a standard algorithm to deterministically choose between several Group-to-RP mappings for a specific group. This document first explains the requirements to extend the Group-to- RP mapping algorithm and then proposes the new algorithm.

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 on Internet Standards is available in 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/rfc6226.

Joshi, et al. Standards Track [Page 1]

RFC 6226 PIM Group-to-RP Mapping May 2011

Copyright Notice

Copyright (c) 2011 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.

Table of Contents

1. Introduction ....................................................2 2. Terminology .....................................................3 3. Existing Algorithm ..............................................4 4. Assumptions .....................................................5 5. Common Use Cases ................................................5 6. Proposed Algorithm ..............................................6 7. Interpretation of MIB Objects ...................................8 8. Clarification for MIB Objects ...................................8 9. Use of Dynamic Group-to-RP Mapping Protocols ....................9 10. Considerations for Bidirectional-PIM and BSR Hash ..............9 11. Filtering Grou...

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