Publish/Subscribe Functionality for LISP
draft-ietf-lisp-pubsub-00
LISP Working Group A. Rodriguez-Natal
Internet-Draft V. Ermagan
Intended status: Experimental J. Leong
Expires: October 27, 2018 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
LIP6 UPMC
April 25, 2018
Publish/Subscribe Functionality for LISP
draft-ietf-lisp-pubsub-00
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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This Internet-Draft will expire on October 27, 2018.
Rodriguez-Natal, et al. Expires October 27, 2018 [Page 1]
Internet-Draft LISP-PubSub April 2018
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 3
3. Deployment Assumptions . . . . . . . . . . . . . . . . . . . 3
4. Map-Request Additions . . . . . . . . . . . . . . . . . . . . 4
5. Mapping Request Subscribe Procedures . . . . . . . . . . . . 5
6. Mapping Notification Publish Procedures . . . . . . . . . . . 7
7. Security Considerations . . . . . . . . . . . . . . . . . . . 8
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 8
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
10. Normative References . . . . . . . . . . . . . . . . . . . . 8
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 8
1. Introduction
The Locator/ID Separation Protocol (LISP) [RFC6830] 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.
ITRs/RTRs/PITRs pull EID-to-RLOC mapping information from the Mapping
System by means of an explicit request message. [RFC6830] indicates
how 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 notified faster
and can be managed in the Mapping System versus the LISP sites.
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