The Locator/ID Separation Protocol (LISP)
draft-ietf-lisp-rfc6830bis-25

The information below is for an old version of the document
Document Type Active Internet-Draft (lisp WG)
Last updated 2018-10-21
Replaces draft-farinacci-lisp-rfc6830bis
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication
Document shepherd Luigi Iannone
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IESG IESG state IESG Evaluation - Defer::AD Followup
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Has 3 DISCUSSes. Needs 2 more YES or NO OBJECTION positions to pass.
Responsible AD Deborah Brungard
Send notices to Luigi Iannone <ggx@gigix.net>
IANA IANA review state Version Changed - Review Needed
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Network Working Group                                       D. Farinacci
Internet-Draft                                                 V. Fuller
Obsoletes: 6830 (if approved)                                   D. Meyer
Intended status: Standards Track                                D. Lewis
Expires: April 24, 2019                                    Cisco Systems
                                                       A. Cabellos (Ed.)
                                                       UPC/BarcelonaTech
                                                        October 21, 2018

               The Locator/ID Separation Protocol (LISP)
                     draft-ietf-lisp-rfc6830bis-25

Abstract

   This document describes the Data-Plane protocol for the Locator/ID
   Separation Protocol (LISP).  LISP defines two namespaces, End-point
   Identifiers (EIDs) that identify end-hosts and Routing Locators
   (RLOCs) that identify network attachment points.  With this, LISP
   effectively separates control from data, and allows routers to create
   overlay networks.  LISP-capable routers exchange encapsulated packets
   according to EID-to-RLOC mappings stored in a local Map-Cache.

   LISP requires no change to either host protocol stacks or to underlay
   routers and offers Traffic Engineering, multihoming and mobility,
   among other features.

   This document obsoletes RFC 6830.

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 April 24, 2019.

Farinacci, et al.        Expires April 24, 2019                 [Page 1]
Internet-Draft                    LISP                      October 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
   Provisions Relating to IETF Documents
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   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Scope of Applicability  . . . . . . . . . . . . . . . . .   4
   2.  Requirements Notation . . . . . . . . . . . . . . . . . . . .   4
   3.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   5
   4.  Basic Overview  . . . . . . . . . . . . . . . . . . . . . . .   9
     4.1.  Packet Flow Sequence  . . . . . . . . . . . . . . . . . .  11
   5.  LISP Encapsulation Details  . . . . . . . . . . . . . . . . .  13
     5.1.  LISP IPv4-in-IPv4 Header Format . . . . . . . . . . . . .  13
     5.2.  LISP IPv6-in-IPv6 Header Format . . . . . . . . . . . . .  14
     5.3.  Tunnel Header Field Descriptions  . . . . . . . . . . . .  15
   6.  LISP EID-to-RLOC Map-Cache  . . . . . . . . . . . . . . . . .  20
   7.  Dealing with Large Encapsulated Packets . . . . . . . . . . .  20
     7.1.  A Stateless Solution to MTU Handling  . . . . . . . . . .  21
     7.2.  A Stateful Solution to MTU Handling . . . . . . . . . . .  22
   8.  Using Virtualization and Segmentation with LISP . . . . . . .  22
   9.  Routing Locator Selection . . . . . . . . . . . . . . . . . .  23
   10. Routing Locator Reachability  . . . . . . . . . . . . . . . .  25
     10.1.  Echo Nonce Algorithm . . . . . . . . . . . . . . . . . .  26
   11. EID Reachability within a LISP Site . . . . . . . . . . . . .  27
   12. Routing Locator Hashing . . . . . . . . . . . . . . . . . . .  28
   13. Changing the Contents of EID-to-RLOC Mappings . . . . . . . .  29
     13.1.  Database Map-Versioning  . . . . . . . . . . . . . . . .  30
   14. Multicast Considerations  . . . . . . . . . . . . . . . . . .  31
   15. Router Performance Considerations . . . . . . . . . . . . . .  31
   16. Security Considerations . . . . . . . . . . . . . . . . . . .  32
   17. Network Management Considerations . . . . . . . . . . . . . .  33
   18. Changes since RFC 6830  . . . . . . . . . . . . . . . . . . .  33
   19. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  34
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