Mandatory Features in a Layer 3 Multicast BGP/MPLS VPN Solution
RFC 6517
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Type |
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RFC - Informational
(February 2012; No errata)
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Last updated |
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2015-10-14
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Replaces |
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draft-morin-l3vpn-mvpn-considerations
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IETF
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plain text
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html
bibtex
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Submitted to IESG for Publication
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Document shepherd |
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No shepherd assigned
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| IESG |
IESG state |
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RFC 6517 (Informational)
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Consensus Boilerplate |
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Unknown
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Responsible AD |
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Stewart Bryant
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Send notices to |
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(None)
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Internet Engineering Task Force (IETF) T. Morin, Ed.
Request for Comments: 6517 France Telecom - Orange
Category: Informational B. Niven-Jenkins, Ed.
ISSN: 2070-1721 BT
Y. Kamite
NTT Communications
R. Zhang
Alcatel-Lucent
N. Leymann
Deutsche Telekom
N. Bitar
Verizon
February 2012
Mandatory Features in a Layer 3 Multicast BGP/MPLS VPN Solution
Abstract
More that one set of mechanisms to support multicast in a layer 3
BGP/MPLS VPN has been defined. These are presented in the documents
that define them as optional building blocks.
To enable interoperability between implementations, this document
defines a subset of features that is considered mandatory for a
multicast BGP/MPLS VPN implementation. This will help implementers
and deployers understand which L3VPN multicast requirements are best
satisfied by each option.
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/rfc6517.
Morin, et al. Informational [Page 1]
RFC 6517 Multicast VPN Mandatory Features February 2012
Copyright Notice
Copyright (c) 2012 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 . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Examining Alternative Mechanisms for MVPN Functions . . . . . 4
3.1. MVPN Auto-Discovery . . . . . . . . . . . . . . . . . . . 4
3.2. S-PMSI Signaling . . . . . . . . . . . . . . . . . . . . . 5
3.3. PE-PE Exchange of C-Multicast Routing . . . . . . . . . . 7
3.3.1. PE-PE C-Multicast Routing Scalability . . . . . . . . 7
3.3.2. PE-CE Multicast Routing Exchange Scalability . . . . . 10
3.3.3. Scalability of P Routers . . . . . . . . . . . . . . . 10
3.3.4. Impact of C-Multicast Routing on Inter-AS Deployments 10
3.3.5. Security and Robustness . . . . . . . . . . . . . . . 11
3.3.6. C-Multicast VPN Join Latency . . . . . . . . . . . . . 12
3.3.7. Conclusion on C-Multicast Routing . . . . . . . . . . 14
3.4. Encapsulation Techniques for P-Multicast Trees . . . . . . 15
3.5. Inter-AS Deployments Options . . . . . . . . . . . . . . . 16
3.6. BIDIR-PIM Support . . . . . . . . . . . . . . . . . . . . 19
4. Co-Located RPs . . . . . . . . . . . . . . . . . . . . . . . . 20
5. Avoiding Duplicates . . . . . . . . . . . . . . . . . . . . . 21
6. Existing Deployments . . . . . . . . . . . . . . . . . . . . . 21
7. Summary of Recommendations . . . . . . . . . . . . . . . . . . 22
8. Security Considerations . . . . . . . . . . . . . . . . . . . 22
9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 23
10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 23
10.1. Normative References . . . . . . . . . . . . . . . . . . . 23
10.2. Informative References . . . . . . . . . . . . . . . . . . 23
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