The Locator/ID Separation Protocol (LISP)
RFC 6830
| Document | Type |
RFC - Experimental
(January 2013; No errata)
Was draft-ietf-lisp (lisp WG)
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | WG Document | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 6830 (Experimental) | |
| 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
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