Multipoint Label Distribution Protocol In-Band Signaling in a Virtual Routing and Forwarding (VRF) Table Context
RFC 7246

 
Document Type RFC - Proposed Standard (June 2014; No errata)
Updated by RFC 7438
Last updated 2014-06-02
Replaces draft-wijnands-l3vpn-mldp-vrf-in-band-signaling
Stream IETF
Formats plain text pdf html
Stream WG state Submitted to IESG for Publication Jan 2014
Consensus Yes
Document shepherd Martin Vigoureux
Shepherd write-up Show (last changed 2014-01-17)
IESG IESG state RFC 7246 (Proposed Standard)
Telechat date
Responsible AD Adrian Farrel
Send notices to l3vpn-chairs@ietf.org, draft-ietf-l3vpn-mldp-vrf-in-band-signaling@ietf.org
IANA IANA review state IANA OK - Actions Needed
IANA action state RFC-Ed-Ack
Internet Engineering Task Force (IETF)                 IJ. Wijnands, Ed.
Request for Comments: 7246                                 Cisco Systems
Category: Standards Track                                     P. Hitchen
ISSN: 2070-1721                                                       BT
                                                              N. Leymann
                                                        Deutsche Telekom
                                                           W. Henderickx
                                                          Alcatel-Lucent
                                                                A. Gulko
                                                         Thomson Reuters
                                                             J. Tantsura
                                                                Ericsson
                                                               June 2014

      Multipoint Label Distribution Protocol In-Band Signaling in
          a Virtual Routing and Forwarding (VRF) Table Context

Abstract

   An IP Multicast Distribution Tree (MDT) may traverse both label
   switching (i.e., Multiprotocol Label Switching, or MPLS) and non-
   label switching regions of a network.  Typically, the MDT begins and
   ends in non-MPLS regions, but travels through an MPLS region.  In
   such cases, it can be useful to begin building the MDT as a pure IP
   MDT, then convert it to an MPLS Multipoint Label Switched Path
   (MP-LSP) when it enters an MPLS-enabled region, and then convert it
   back to a pure IP MDT when it enters a non-MPLS-enabled region.
   Other documents specify the procedures for building such a hybrid
   MDT, using Protocol Independent Multicast (PIM) in the non-MPLS
   region of the network, and using Multipoint Label Distribution
   Protocol (mLDP) in the MPLS region.  This document extends those
   procedures to handle the case where the link connecting the two
   regions is a Virtual Routing and Forwarding (VRF) table link, as
   defined in the "BGP IP/MPLS VPN" specification.  However, this
   document is primarily aimed at particular use cases where VRFs are
   used to support multicast applications other than multicast VPN.

Wijnands, et al.             Standards Track                    [Page 1]
RFC 7246          mLDP In-Band Signaling in VRF Context        June 2014

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/rfc7246.

Copyright Notice

   Copyright (c) 2014 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
     1.1.  Conventions Used in This Document  . . . . . . . . . . . .  4
     1.2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  5
   2.  VRF In-Band Signaling for MP LSPs  . . . . . . . . . . . . . .  5
   3.  Encoding the Opaque Value of an LDP MP FEC . . . . . . . . . .  7
     3.1.  Transit VPNv4 Source TLV . . . . . . . . . . . . . . . . .  7
     3.2.  Transit VPNv6 Source TLV . . . . . . . . . . . . . . . . .  8
     3.3.  Transit VPNv4 Bidir TLV  . . . . . . . . . . . . . . . . .  9
     3.4.  Transit VPNv6 Bidir TLV  . . . . . . . . . . . . . . . . . 10
   4.  Security Considerations  . . . . . . . . . . . . . . . . . . . 10
   5.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 11
   6.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 11
   7.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 11
     7.1.  Normative References . . . . . . . . . . . . . . . . . . . 11
     7.2.  Informative References . . . . . . . . . . . . . . . . . . 12

Wijnands, et al.             Standards Track                    [Page 2]
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