LISP Replication Engineering
draft-coras-lisp-re-04

Network Working Group                                           F. Coras
Internet-Draft                                      A. Cabellos-Aparicio
Intended status: Informational                        J. Domingo-Pascual
Expires: April 24, 2014                          Technical University of
                                                               Catalonia
                                                                F. Maino
                                                           cisco Systems
                                                            D. Farinacci
                                                             lispers.net
                                                        October 21, 2013

                      LISP Replication Engineering
                         draft-coras-lisp-re-04

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.

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   This Internet-Draft will expire on April 24, 2014.

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   to this document.  Code Components extracted from this document must
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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Definition of Terms  . . . . . . . . . . . . . . . . . . . . .  4
   3.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
   4.  Overlay Signaling  . . . . . . . . . . . . . . . . . . . . . .  6
     4.1.  RTR Registration . . . . . . . . . . . . . . . . . . . . .  6
     4.2.  ETR/RTR Subscription . . . . . . . . . . . . . . . . . . .  6
     4.3.  ETR/RTR Unsubscription . . . . . . . . . . . . . . . . . .  8
   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  . . . . . . . . . . . . . . . . . . . 11
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 11
   8.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 11
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 11
     9.1.  Normative References . . . . . . . . . . . . . . . . . . . 11
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 12
   Appendix A.  MADDBST heuristic . . . . . . . . . . . . . . . . . . 13
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 13

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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