Carrying Protocol Independent Multicast - Sparse Mode (PIM-SM) in Any-Source Multicast (ASM) Mode Trees over Multipoint LDP (mLDP)
RFC 7442
| Document | Type | RFC - Proposed Standard (February 2015; No errata) | |
|---|---|---|---|
| Authors | Yakov Rekhter , Rahul Aggarwal , Nicolai Leymann , Wim Henderickx , Quintin Zhao , Richard Li | ||
| Last updated | 2015-10-14 | ||
| Replaces | draft-rekhter-mpls-pim-sm-over-mldp | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Loa Andersson | ||
| Shepherd write-up | Show (last changed 2014-09-10) | ||
| IESG | IESG state | RFC 7442 (Proposed Standard) | |
| Action Holders |
(None)
|
||
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Adrian Farrel | ||
| Send notices to | (None) | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) Y. Rekhter
Request for Comments: 7442 Juniper Networks
Category: Standards Track R. Aggarwal
ISSN: 2070-1721 Arktan
N. Leymann
Deutsche Telekom
W. Henderickx
Alcatel-Lucent
Q. Zhao
R. Li
Huawei
February 2015
Carrying Protocol Independent Multicast - Sparse Mode (PIM-SM)
in Any-Source Multicast (ASM) Mode Trees over Multipoint LDP (mLDP)
Abstract
When IP multicast trees created by Protocol Independent Multicast -
Sparse Mode (PIM-SM) in Any-Source Multicast (ASM) mode need to pass
through an MPLS domain, it may be desirable to map such trees to
Point-to-Multipoint Label Switched Paths (P2MP LSPs). This document
describes how to accomplish this in the case where such P2MP LSPs are
established using Label Distribution Protocol (LDP) Extensions for
P2MP and Multipoint-to-Multipoint LSPs: Multipoint LDP (mLDP).
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/rfc7442.
Rekhter, et al. Standards Track [Page 1]
RFC 7442 PIM-SM over P2MP mLDP LSPs February 2015
Copyright Notice
Copyright (c) 2015 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
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the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction ....................................................3
1.1. Specification of Requirements ..............................4
2. Mechanism 1 - Non-transitive Mapping of IP Multicast
Shared Trees ....................................................4
2.1. Originating Source Active Auto-discovery Routes
(Mechanism 1) ..............................................4
2.2. Receiving Source Active Auto-discovery Routes by LSR .......5
2.3. Handling (S,G,RPT-bit) State ...............................5
3. Mechanism 2 - Transitive Mapping of IP Multicast Shared Trees ...6
3.1. In-Band Signaling for IP Multicast Shared Trees ............6
3.2. Originating Source Active Auto-discovery Routes
(Mechanism 2) ..............................................7
3.3. Receiving Source Active Auto-discovery Routes ..............8
3.4. Pruning Sources Off the Shared Tree ........................8
3.5. More on Handling (S,G,RPT-bit) State .......................9
4. IANA Considerations .............................................9
5. Security Considerations .........................................9
6. References .....................................................10
6.1. Normative References ......................................10
6.2. Informative References ....................................10
Acknowledgements ..................................................11
Authors' Addresses ................................................11
Rekhter, et al. Standards Track [Page 2]
RFC 7442 PIM-SM over P2MP mLDP LSPs February 2015
1. Introduction
[RFC6826] describes how to map Point-to-Multipoint Label Switched
Paths (P2MP LSPs) created by mLDP [RFC6388] to multicast trees
created by Protocol Independent Multicast - Sparse Mode (PIM-SM) in
Source-Specific Multicast (SSM) mode [RFC4607]. This document
describes how to map mLDP P2MP trees to multicast trees created by
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