Gap Analysis for Operating IPv6-Only MPLS Networks
RFC 7439
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Type |
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RFC - Informational
(January 2015; Errata)
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Last updated |
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2016-01-19
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Replaces |
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draft-george-mpls-ipv6-only-gap
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Stream |
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IETF
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plain text
pdf
html
bibtex
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Loa Andersson
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Shepherd write-up |
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Show
(last changed 2014-08-31)
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| IESG |
IESG state |
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RFC 7439 (Informational)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Adrian Farrel
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Send notices to |
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(None)
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| IANA |
IANA review state |
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Version Changed - Review Needed
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IANA action state |
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No IC
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Internet Engineering Task Force (IETF) W. George, Ed.
Request for Comments: 7439 Time Warner Cable
Category: Informational C. Pignataro, Ed.
ISSN: 2070-1721 Cisco
January 2015
Gap Analysis for Operating IPv6-Only MPLS Networks
Abstract
This document reviews the Multiprotocol Label Switching (MPLS)
protocol suite in the context of IPv6 and identifies gaps that must
be addressed in order to allow MPLS-related protocols and
applications to be used with IPv6-only networks. This document is
intended to focus on gaps in the standards defining the MPLS suite,
and is not intended to highlight particular vendor implementations
(or lack thereof) in the context of IPv6-only MPLS functionality.
In the data plane, MPLS fully supports IPv6, and MPLS labeled packets
can be carried over IPv6 packets in a variety of encapsulations.
However, support for IPv6 among MPLS control-plane protocols, MPLS
applications, MPLS Operations, Administration, and Maintenance (OAM),
and MIB modules is mixed, with some protocols having major gaps. For
most major gaps, work is in progress to upgrade the relevant
protocols.
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/rfc7439.
George & Pignataro Informational [Page 1]
RFC 7439 IPv6-Only MPLS January 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
(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.
George & Pignataro Informational [Page 2]
RFC 7439 IPv6-Only MPLS January 2015
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Use Case . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Gap Analysis . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1. MPLS Data Plane . . . . . . . . . . . . . . . . . . . . . 6
3.2. MPLS Control Plane . . . . . . . . . . . . . . . . . . . 6
3.2.1. Label Distribution Protocol (LDP) . . . . . . . . . . 6
3.2.2. Multipoint LDP (mLDP) . . . . . . . . . . . . . . . . 6
3.2.3. RSVP - Traffic Engineering (RSVP-TE) . . . . . . . . 7
3.2.3.1. Interior Gateway Protocol (IGP) . . . . . . . . . 8
3.2.3.2. RSVP-TE Point-to-Multipoint (P2MP) . . . . . . . 8
3.2.3.3. RSVP-TE Fast Reroute (FRR) . . . . . . . . . . . 8
3.2.4. Path Computation Element (PCE) . . . . . . . . . . . 8
3.2.5. Border Gateway Protocol (BGP) . . . . . . . . . . . . 9
3.2.6. Generalized Multi-Protocol Label Switching (GMPLS) . 9
3.3. MPLS Applications . . . . . . . . . . . . . . . . . . . . 9
3.3.1. Layer 2 Virtual Private Network (L2VPN) . . . . . . . 9
3.3.1.1. Ethernet VPN (EVPN) . . . . . . . . . . . . . . . 10
3.3.2. Layer 3 Virtual Private Network (L3VPN) . . . . . . . 10
3.3.2.1. IPv6 Provider Edge/IPv4 Provider Edge (6PE/4PE) . 11
3.3.2.2. IPv6 Virtual Private Extension/IPv4 Virtual
Private Extension (6VPE/4VPE) . . . . . . . . . . 11
3.3.2.3. BGP Encapsulation Subsequent Address Family
Identifier (SAFI) . . . . . . . . . . . . . . . . 12
3.3.2.4. Multicast in MPLS/BGP IP VPN (MVPN) . . . . . . . 12
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