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LISP Replication Engineering
draft-coras-lisp-re-05

Document type: Active Internet-Draft (individual)
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Last updated: 2014-04-23
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Network Working Group                                           F. Coras
Internet-Draft                                      A. Cabellos-Aparicio
Intended status: Informational                        J. Domingo-Pascual
Expires: October 25, 2014              Technical University of Catalonia
                                                                F. Maino
                                                           cisco Systems
                                                            D. Farinacci
                                                             lispers.net
                                                          April 23, 2014

                      LISP Replication Engineering
                         draft-coras-lisp-re-05

Abstract

   This document describes a method to build and optimize inter-domain
   LISP router distribution trees for locator-based unicast and
   multicast replication of EID-sourced multicast packets.

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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   This Internet-Draft will expire on October 25, 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
   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

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   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   3
   3.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  Overlay Signaling . . . . . . . . . . . . . . . . . . . . . .   6
     4.1.  RTR Registration  . . . . . . . . . . . . . . . . . . . .   6
     4.2.  ETR/RTR Subscription  . . . . . . . . . . . . . . . . . .   6
     4.3.  ETR/RTR Unsubscription  . . . . . . . . . . . . . . . . .   7
   5.  Overlay Management  . . . . . . . . . . . . . . . . . . . . .   8
     5.1.  RLOC Failure and Unreachability . . . . . . . . . . . . .   8
     5.2.  Other Overlay Management Considerations . . . . . . . . .   8
     5.3.  Automated Computation of RTR Level  . . . . . . . . . . .   9
       5.3.1.  Algorithm for Computing Optimized Distribution Trees    9
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  11
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  11
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  12
   Appendix A.  MADDBST heuristic  . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   The Locator/Identifier Separation Protocol (LISP) [RFC6830]  provides
   the mechanisms for the separation of Location and Identity semantics
   presently overloaded by IP addresses.  The split results in the
   creation of two namespaces that unambigously identify edge-site
   network objects, Endpoint IDs (EIDs), and core routing objects,
   Routing LOCators (RLOCs).  Apart from aiding the scalablity of the
   core routing infrastructure, the decoupling also enables the
   (re)implementation of new or existing inter-domain routing
   mechanisms.

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   One such mechanism is inter-domain IP source-specific multicast (SSM)

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