Publish/Subscribe Functionality for LISP
draft-ietf-lisp-pubsub-02
LISP Working Group A. Rodriguez-Natal
Internet-Draft V. Ermagan
Intended status: Experimental J. Leong
Expires: May 7, 2019 F. Maino
Cisco Systems
A. Cabellos-Aparicio
Technical University of Catalonia
S. Barkai
Fermi Serverless
D. Farinacci
lispers.net
M. Boucadair
C. Jacquenet
Orange
S. Secci
Cnam
November 3, 2018
Publish/Subscribe Functionality for LISP
draft-ietf-lisp-pubsub-02
Abstract
This document specifies an extension to the use of Map-Request to
enable Publish/Subscribe (PubSub) operation for LISP.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on May 7, 2019.
Rodriguez-Natal, et al. Expires May 7, 2019 [Page 1]
Internet-Draft LISP-PubSub November 2018
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 3
3. Definition of Terms . . . . . . . . . . . . . . . . . . . . . 3
4. Deployment Assumptions . . . . . . . . . . . . . . . . . . . 4
5. Map-Request PubSub Additions . . . . . . . . . . . . . . . . 4
6. Mapping Request Subscribe Procedures . . . . . . . . . . . . 6
7. Mapping Notification Publish Procedures . . . . . . . . . . . 8
8. Security Considerations . . . . . . . . . . . . . . . . . . . 9
9. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 9
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10
11. Normative References . . . . . . . . . . . . . . . . . . . . 10
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 10
1. Introduction
The Locator/ID Separation Protocol (LISP) [I-D.ietf-lisp-rfc6833bis]
splits current IP addresses in two different namespaces, Endpoint
Identifiers (EIDs) and Routing Locators (RLOCs). LISP uses a map-
and-encap approach that relies on (1) a Mapping System (basically a
distributed database) that stores and disseminates EID-RLOC mappings
and on (2) LISP tunnel routers (xTRs) that encapsulate and
decapsulate data packets based on the content of those mappings.
Ingress Tunnel Routers (ITRs) / Re-encapsulating Tunnel Routers
(RTRs) / Proxy Ingress Tunnel Routers (PITRs) pull EID-to-RLOC
mapping information from the Mapping System by means of an explicit
request message. [I-D.ietf-lisp-rfc6833bis] indicates how Egress
Tunnel Routers (ETRs) can tell ITRs/RTRs/PITRs about mapping changes.
This document presents a Publish/Subscribe (PubSub) extension in
which the Mapping System can notify ITRs/RTRs/PITRs about mapping
changes. When this mechanism is used, mapping changes can be
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