Browse Prior Art Database

Multipoint Label Distribution Protocol In-Band Signaling in a Virtual Routing and Forwarding (VRF) Table Context (RFC7246)

IP.com Disclosure Number: IPCOM000237104D
Original Publication Date: 2014-Jun-01
Included in the Prior Art Database: 2014-Jun-03
Document File: 26 page(s) / 25K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

IJ. Wijnands: AUTHOR [+7]

Abstract

Sometimes an IP Multicast Distribution Tree (MDT) traverses both MPLS-enabled and non-MPLS-enabled 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 (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 the procedures from [RFC6826] 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 [RFC6513]. However, this document is primarily aimed at particular use cases where VRFs are used to support multicast applications other than multicast VPN.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 11% of the total text.

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,...