mLDP In-Band Signaling with Wildcards
draft-ietf-mpls-mldp-in-band-wildcard-encoding-00

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Last updated 2014-03-03
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MPLS Working Group                                     IJ. Wijnands, Ed.
Internet-Draft                                                  E. Rosen
Intended status: Standards Track                                   Cisco
Expires: September 4, 2014                                      A. Gulko
                                                         Thomson Reuters
                                                               U. Joorde
                                                        Deutsche Telekom
                                                             J. Tantsura
                                                                Ericsson
                                                           March 3, 2014

                 mLDP In-Band Signaling with Wildcards
           draft-ietf-mpls-mldp-in-band-wildcard-encoding-00

Abstract

   There are scenarios in which an IP multicast tree traverses an MPLS
   domain.  In these scenarios, it can be desirable to convert the IP
   multicast tree "seamlessly" to an MPLS multipoint label switched path
   (MP-LSP) when it enters the MPLS domain, and then to convert it back
   to an IP multicast tree when it exists the MPLS domain.  Previous
   documents specify procedures that allow certain kinds of IP multicast
   trees (either "Source-Specific Multicast" trees or "Bidirectional
   multicast" trees) to be attached to an MPLS multipoint label switched
   path (MP-LSP), either in the context of a particular VPN or in a
   "global" (non-VPN) context.  However, the previous documents do not
   specify procedures for attaching IP "Any Source Multicast" trees to
   MP-LSPs, nor do they specify procedures "aggregating" multiple IP
   multicast trees onto a single MP-LSP.  This document specifies the
   procedures to support these functions.  It does so by defining
   "wildcard" encodings making it possible to specify, when setting up
   an MP-LSP, that a set of IP multicast trees or a shared IP multicast
   tree should be attached to that MP-LSP.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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Wijnands, et al.        Expires September 4, 2014               [Page 1]
Internet-Draft    mLDP In-Band Signaling with Wildcards       March 2014

   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on September 4, 2014.

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
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   described in the Simplified BSD License.

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Internet-Draft    mLDP In-Band Signaling with Wildcards       March 2014

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Terminology and Definitions  . . . . . . . . . . . . . . . . .  5
   3.  Wildcards in mLDP Opaque Value TLVs  . . . . . . . . . . . . .  7
   4.  Some Wildcard Use Cases  . . . . . . . . . . . . . . . . . . .  8
     4.1.  PIM shared tree forwarding . . . . . . . . . . . . . . . .  8
     4.2.  IGMP/MLD proxying  . . . . . . . . . . . . . . . . . . . .  9
     4.3.  Selective Source mapping . . . . . . . . . . . . . . . . . 10
   5.  Procedures for Wildcard Source Usage . . . . . . . . . . . . . 10
   6.  Procedures for Wildcard Group Usage  . . . . . . . . . . . . . 11
   7.  Determining the MP-LSP Root (Ingress LSR)  . . . . . . . . . . 11
   8.  Anycast RP . . . . . . . . . . . . . . . . . . . . . . . . . . 12
   9.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 12
   10. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 12
   11. Security Considerations  . . . . . . . . . . . . . . . . . . . 12
   12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 12
     12.1. Normative References . . . . . . . . . . . . . . . . . . . 12
     12.2. Informative References . . . . . . . . . . . . . . . . . . 13
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