The Locator/ID Separation Protocol (LISP)
RFC 6830
Document | Type |
RFC - Experimental
(January 2013; No errata)
Updated by RFC 8113
Was draft-ietf-lisp (lisp WG)
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Authors | Dino Farinacci , Vince Fuller , David Meyer , Darrel Lewis | ||
Last updated | 2018-12-20 | ||
Stream | Internent Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Reviews | |||
Stream | WG state | WG Document | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6830 (Experimental) | |
Action Holders |
(None)
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Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Jari Arkko | ||
IESG note | Joel Halpern (jmh@joelhalpern.com) is the document shepherd. | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) D. Farinacci Request for Comments: 6830 Cisco Systems Category: Experimental V. Fuller ISSN: 2070-1721 D. Meyer D. Lewis Cisco Systems January 2013 The Locator/ID Separation Protocol (LISP) Abstract This document describes a network-layer-based protocol that enables separation of IP addresses into two new numbering spaces: Endpoint Identifiers (EIDs) and Routing Locators (RLOCs). No changes are required to either host protocol stacks or to the "core" of the Internet infrastructure. The Locator/ID Separation Protocol (LISP) can be incrementally deployed, without a "flag day", and offers Traffic Engineering, multihoming, and mobility benefits to early adopters, even when there are relatively few LISP-capable sites. Design and development of LISP was largely motivated by the problem statement produced by the October 2006 IAB Routing and Addressing Workshop. 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/rfc6830. Farinacci, et al. Experimental [Page 1] RFC 6830 LISP January 2013 Copyright Notice Copyright (c) 2013 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. Table of Contents 1. Introduction ....................................................3 2. Requirements Notation ...........................................5 3. Definition of Terms .............................................5 4. Basic Overview .................................................10 4.1. Packet Flow Sequence ......................................13 5. LISP Encapsulation Details .....................................15 5.1. LISP IPv4-in-IPv4 Header Format ...........................16 5.2. LISP IPv6-in-IPv6 Header Format ...........................17 5.3. Tunnel Header Field Descriptions ..........................18 5.4. Dealing with Large Encapsulated Packets ...................22 5.4.1. A Stateless Solution to MTU Handling ...............22 5.4.2. A Stateful Solution to MTU Handling ................23 5.5. Using Virtualization and Segmentation with LISP ...........24 6. EID-to-RLOC Mapping ............................................25 6.1. LISP IPv4 and IPv6 Control-Plane Packet Formats ...........25 6.1.1. LISP Packet Type Allocations .......................27 6.1.2. Map-Request Message Format .........................27 6.1.3. EID-to-RLOC UDP Map-Request Message ................30 6.1.4. Map-Reply Message Format ...........................31 6.1.5. EID-to-RLOC UDP Map-Reply Message ..................35 6.1.6. Map-Register Message Format ........................37 6.1.7. Map-Notify Message Format ..........................39 6.1.8. Encapsulated Control Message Format ................41 6.2. Routing Locator Selection .................................42 6.3. Routing Locator Reachability ..............................44 6.3.1. Echo Nonce Algorithm ...............................46 6.3.2. RLOC-Probing Algorithm .............................48 6.4. EID Reachability within a LISP Site .......................49Show full document text