Locator/ID Separation Protocol (LISP) Impact
RFC 7834
Internet Engineering Task Force (IETF) D. Saucez
Request for Comments: 7834 INRIA
Category: Informational L. Iannone
ISSN: 2070-1721 Telecom ParisTech
A. Cabellos
F. Coras
Technical University of Catalonia
April 2016
Locator/ID Separation Protocol (LISP) Impact
Abstract
The Locator/ID Separation Protocol (LISP) aims to improve the
Internet routing scalability properties by leveraging three
principles: address role separation, encapsulation, and mapping. In
this document, based on implementation work, deployment experiences,
and theoretical studies, we discuss the impact that the deployment of
LISP can have on both the routing infrastructure and the end user.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
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/rfc7834.
Saucez, et al. Informational [Page 1]
RFC 7834 LISP Impact April 2016
Copyright Notice
Copyright (c) 2016 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. LISP in a Nutshell . . . . . . . . . . . . . . . . . . . . . 4
3. LISP for Scaling the Internet Routing Architecture . . . . . 5
4. Beyond Scaling the Internet Routing Architecture . . . . . . 6
4.1. Traffic Engineering . . . . . . . . . . . . . . . . . . . 8
4.2. LISP for IPv6 Co-existence . . . . . . . . . . . . . . . 8
4.3. Inter-domain Multicast . . . . . . . . . . . . . . . . . 9
5. Impact of LISP on Operations and Business Models . . . . . . 10
5.1. Impact on Non-LISP Traffic and Sites . . . . . . . . . . 10
5.2. Impact on LISP Traffic and Sites . . . . . . . . . . . . 11
6. Security Considerations . . . . . . . . . . . . . . . . . . . 12
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.1. Normative References . . . . . . . . . . . . . . . . . . 13
7.2. Informative References . . . . . . . . . . . . . . . . . 14
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 17
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 18
Saucez, et al. Informational [Page 2]
RFC 7834 LISP Impact April 2016
1. Introduction
The Locator/ID Separation Protocol (LISP) relies on three principles
to improve the scalability properties of Internet routing: address
role separation, encapsulation, and mapping. When invented, LISP was
targeted at solving the Internet routing scaling problem [RFC4984].
There have now been years of implementations and experiments
examining the impact and open questions of using LISP to improve
inter-domain routing scalability. Experience has shown that because
LISP utilizes mapping and encapsulation technologies, it can be
deployed and used for purposes that go beyond routing scalability.
For example, LISP provides a mean for a LISP site to precisely
control its inter-domain outgoing and incoming traffic, with the
possibility to apply different policies to different domains
exchanging traffic with it. LISP can also be used to ease the
transition from IPv4 to IPv6 as it allows the transport of IPv4 over
IPv6 or IPv6 over IPv4. Furthermore, LISP also supports inter-domain
Show full document text