An Architectural Introduction to the Locator/ID Separation Protocol (LISP)
draft-ietf-lisp-introduction-13
Network Working Group A. Cabellos
Internet-Draft UPC-BarcelonaTech
Intended status: Informational D. Saucez (Ed.)
Expires: October 4, 2015 INRIA
April 02, 2015
An Architectural Introduction to the Locator/ID Separation Protocol
(LISP)
draft-ietf-lisp-introduction-13.txt
Abstract
This document describes the architecture of the Locator/ID Separation
Protocol (LISP), making it easier to read the rest of the LISP
specifications and providing a basis for discussion about the details
of the LISP protocols. This document is used for introductory
purposes, more details can be found in RFC6830, the protocol
specification.
Status of This Memo
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This Internet-Draft will expire on October 4, 2015.
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Cabellos & Saucez (Ed.) Expires October 4, 2015 [Page 1]
Internet-Draft LISP Introduction April 2015
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Definition of Terms . . . . . . . . . . . . . . . . . . . . . 4
3. LISP Architecture . . . . . . . . . . . . . . . . . . . . . . 5
3.1. Design Principles . . . . . . . . . . . . . . . . . . . . 5
3.2. Overview of the Architecture . . . . . . . . . . . . . . 5
3.3. Data-Plane . . . . . . . . . . . . . . . . . . . . . . . 8
3.3.1. LISP Encapsulation . . . . . . . . . . . . . . . . . 8
3.3.2. LISP Forwarding State . . . . . . . . . . . . . . . . 10
3.4. Control-Plane . . . . . . . . . . . . . . . . . . . . . . 10
3.4.1. LISP Mappings . . . . . . . . . . . . . . . . . . . . 10
3.4.2. Mapping System Interface . . . . . . . . . . . . . . 11
3.4.3. Mapping System . . . . . . . . . . . . . . . . . . . 11
3.5. Internetworking Mechanisms . . . . . . . . . . . . . . . 14
4. LISP Operational Mechanisms . . . . . . . . . . . . . . . . . 15
4.1. Cache Management . . . . . . . . . . . . . . . . . . . . 15
4.2. RLOC Reachability . . . . . . . . . . . . . . . . . . . . 16
4.3. ETR Synchronization . . . . . . . . . . . . . . . . . . . 17
4.4. MTU Handling . . . . . . . . . . . . . . . . . . . . . . 17
5. Mobility . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6. Multicast . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7. Use Cases . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1. Traffic Engineering . . . . . . . . . . . . . . . . . . . 19
7.2. LISP for IPv6 Co-existence . . . . . . . . . . . . . . . 20
7.3. LISP for Virtual Private Networks . . . . . . . . . . . . 20
7.4. LISP for Virtual Machine Mobility in Data Centers . . . . 21
8. Security Considerations . . . . . . . . . . . . . . . . . . . 21
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 22
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 22
11. References . . . . . . . . . . . . . . . . . . . . . . . . . 23
11.1. Normative References . . . . . . . . . . . . . . . . . . 23
11.2. Informative References . . . . . . . . . . . . . . . . . 25
Appendix A. A Brief History of Location/Identity Separation . . 25
A.1. Old LISP Models . . . . . . . . . . . . . . . . . . . . . 26
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