datatracker.ietf.org
Sign in
Version 5.4.0, 2014-04-22
Report a bug

Locator/Identifier Separation Protocol (LISP) Network Element Deployment Considerations
RFC 7215

Internet Engineering Task Force (IETF)                          L. Jakab
Request for Comments: 7215                                 Cisco Systems
Category: Experimental                              A. Cabellos-Aparicio
ISSN: 2070-1721                                                 F. Coras
                                                      J. Domingo-Pascual
                                       Technical University of Catalonia
                                                                D. Lewis
                                                           Cisco Systems
                                                              April 2014

             Locator/Identifier Separation Protocol (LISP)
               Network Element Deployment Considerations

Abstract

   This document is a snapshot of different Locator/Identifier
   Separation Protocol (LISP) deployment scenarios.  It discusses the
   placement of new network elements introduced by the protocol,
   representing the thinking of the LISP working group as of Summer
   2013.  LISP deployment scenarios may have evolved since then.  This
   memo represents one stable point in that evolution of understanding.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for examination, experimental implementation, and
   evaluation.

   This document defines an Experimental Protocol for the Internet
   community.  This document is a product of the Internet Engineering
   Task Force (IETF).  It represents the consensus of the IETF
   community.  It has received public review and has been approved for
   publication by the Internet Engineering Steering Group (IESG).  Not
   all documents approved by the IESG are a candidate for any level of
   Internet Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7215.

Jakab, et al.                 Experimental                      [Page 1]
RFC 7215                     LISP Deployment                  April 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
   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.

Jakab, et al.                 Experimental                      [Page 2]
RFC 7215                     LISP Deployment                  April 2014

Table of Contents

   1. Introduction ....................................................3
   2. Tunnel Routers ..................................................5
      2.1. Deployment Scenarios .......................................5
           2.1.1. Customer Edge (CE) ..................................5
           2.1.2. Provider Edge (PE) ..................................6
           2.1.3. Tunnel Routers behind NAT ...........................8
                  2.1.3.1. ITR ........................................8
                  2.1.3.2. ETR ........................................9
                  2.1.3.3. Additional Notes ...........................9
      2.2. Functional Models with Tunnel Routers ......................9
           2.2.1. Split ITR/ETR .......................................9
           2.2.2. Inter-Service-Provider Traffic Engineering .........11
      2.3. Summary and Feature Matrix ................................13
   3. Map-Servers and Map-Resolvers ..................................14
      3.1. Map-Servers ...............................................14
      3.2. Map-Resolvers .............................................16
   4. Proxy Tunnel Routers ...........................................17
      4.1. PITRs .....................................................17
      4.2. PETRs .....................................................18
   5. Migration to LISP ..............................................19
      5.1. LISP+BGP ..................................................19
      5.2. Mapping Service Provider (MSP) PITR Service ...............20
      5.3. Proxy-ITR Route Distribution (PITR-RD) ....................20
      5.4. Migration Summary .........................................23
   6. Security Considerations ........................................24

[include full document text]