Locator/ID Separation Protocol (LISP) Control-Plane
draft-ietf-lisp-rfc6833bis-23

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Network Working Group                                          V. Fuller
Internet-Draft                                              D. Farinacci
Obsoletes: 6833 (if approved)                              Cisco Systems
Intended status: Standards Track                       A. Cabellos (Ed.)
Expires: June 13, 2019                                 UPC/BarcelonaTech
                                                       December 10, 2018

          Locator/ID Separation Protocol (LISP) Control-Plane
                     draft-ietf-lisp-rfc6833bis-23

Abstract

   This document describes the Control-Plane and Mapping Service for the
   Locator/ID Separation Protocol (LISP), implemented by two new types
   of LISP-speaking devices -- the LISP Map-Resolver and LISP Map-Server
   -- that provides a simplified "front end" for one or more Endpoint ID
   to Routing Locator mapping databases.

   By using this Control-Plane service interface and communicating with
   Map-Resolvers and Map-Servers, LISP Ingress Tunnel Routers (ITRs) and
   Egress Tunnel Routers (ETRs) are not dependent on the details of
   mapping database systems, which facilitates modularity with different
   database designs.  Since these devices implement the "edge" of the
   LISP Control-Plane infrastructure, connecting EID addressable nodes
   of a LISP site, their implementation and operational complexity
   reduces the overall cost and effort of deploying LISP.

   This document obsoletes RFC 6830 and 6833.

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 https://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 June 13, 2019.

Fuller, et al.            Expires June 13, 2019                 [Page 1]
Internet-Draft             LISP Control-Plane              December 2018

Copyright Notice

   Copyright (c) 2018 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
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Scope of Applicability  . . . . . . . . . . . . . . . . .   4
   2.  Requirements Notation . . . . . . . . . . . . . . . . . . . .   5
   3.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   5
   4.  Basic Overview  . . . . . . . . . . . . . . . . . . . . . . .   6
   5.  LISP IPv4 and IPv6 Control-Plane Packet Formats . . . . . . .   8
     5.1.  LISP Control Packet Type Allocations  . . . . . . . . . .  11
     5.2.  Map-Request Message Format  . . . . . . . . . . . . . . .  12
     5.3.  EID-to-RLOC UDP Map-Request Message . . . . . . . . . . .  15
     5.4.  Map-Reply Message Format  . . . . . . . . . . . . . . . .  17
     5.5.  EID-to-RLOC UDP Map-Reply Message . . . . . . . . . . . .  21
     5.6.  Map-Register Message Format . . . . . . . . . . . . . . .  24
     5.7.  Map-Notify/Map-Notify-Ack Message Format  . . . . . . . .  28
     5.8.  Encapsulated Control Message Format . . . . . . . . . . .  30
   6.  Changing the Contents of EID-to-RLOC Mappings . . . . . . . .  32
     6.1.  Solicit-Map-Request (SMR) . . . . . . . . . . . . . . . .  32
   7.  Routing Locator Reachability  . . . . . . . . . . . . . . . .  33
     7.1.  RLOC-Probing Algorithm  . . . . . . . . . . . . . . . . .  35
   8.  Interactions with Other LISP Components . . . . . . . . . . .  36
     8.1.  ITR EID-to-RLOC Mapping Resolution  . . . . . . . . . . .  36
     8.2.  EID-Prefix Configuration and ETR Registration . . . . . .  37
     8.3.  Map-Server Processing . . . . . . . . . . . . . . . . . .  39
     8.4.  Map-Resolver Processing . . . . . . . . . . . . . . . . .  40
       8.4.1.  Anycast Operation . . . . . . . . . . . . . . . . . .  40
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  41
   10. Privacy Considerations  . . . . . . . . . . . . . . . . . . .  42
   11. Changes since RFC 6833  . . . . . . . . . . . . . . . . . . .  43