Signal-Free LISP Multicast
draft-ietf-lisp-signal-free-multicast-06

Document Type Active Internet-Draft (lisp WG)
Last updated 2017-08-01
Replaces draft-farinacci-lisp-signal-free-multicast
Stream IETF
Intended RFC status Experimental
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Stream WG state WG Consensus: Waiting for Write-Up
Document shepherd Luigi Iannone
IESG IESG state I-D Exists
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Send notices to Luigi Iannone <luigi.iannone@telecom-paristech.fr>
Network Working Group                                          V. Moreno
Internet-Draft                                             Cisco Systems
Intended status: Experimental                               D. Farinacci
Expires: February 2, 2018                                    lispers.net
                                                          August 1, 2017

                       Signal-Free LISP Multicast
                draft-ietf-lisp-signal-free-multicast-06

Abstract

   When multicast sources and receivers are active at LISP sites, the
   core network is required to use native multicast so packets can be
   delivered from sources to group members.  When multicast is not
   available to connect the multicast sites together, a signal-free
   mechanism can be used to allow traffic to flow between sites.  The
   mechanism within here uses unicast replication and encapsulation over
   the core network for the data-plane and uses the LISP mapping
   database system so encapsulators at the source LISP multicast site
   can find decapsulators at the receiver LISP multicast sites.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on February 2, 2018.

Moreno & Farinacci      Expires February 2, 2018                [Page 1]
Internet-Draft         Signal-Free LISP Multicast            August 2017

Copyright Notice

   Copyright (c) 2017 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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   4
   3.  Reference Model . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  General Procedures  . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  General Receiver-Site Procedures  . . . . . . . . . . . .   8
       4.1.1.  Multicast Receiver Detection  . . . . . . . . . . . .   8
       4.1.2.  Receiver-Site Registration  . . . . . . . . . . . . .   8
       4.1.3.  Consolidation of the Replication-List . . . . . . . .   9
     4.2.  General Source-Site Procedures  . . . . . . . . . . . . .  10
       4.2.1.  Multicast Tree Building at the Source-Site  . . . . .  10
       4.2.2.  Multicast Destination Resolution  . . . . . . . . . .  10
     4.3.  General LISP Notification Procedures  . . . . . . . . . .  11
   5.  Source Specific Multicast Trees . . . . . . . . . . . . . . .  11
     5.1.  Source Directly Connected to Source-ITRs  . . . . . . . .  12
     5.2.  Source not Directly Connected to Source-ITRs  . . . . . .  12
   6.  Multi-Homing Considerations . . . . . . . . . . . . . . . . .  12
     6.1.  Multiple ITRs at a Source-Site  . . . . . . . . . . . . .  12
     6.2.  Multiple ETRs at a Receiver-Site  . . . . . . . . . . . .  13
     6.3.  Multiple RLOCs for an ETR at a Receiver-Site  . . . . . .  13
     6.4.  Multicast RLOCs for an ETR at a Receiver-Site . . . . . .  14
   7.  PIM Any Source Multicast Trees  . . . . . . . . . . . . . . .  14
   8.  Signal-Free Multicast for Replication Engineering . . . . . .  15
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  18
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  19
   11. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  19
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