MS-originated SMRs
draft-rodrigueznatal-lisp-ms-smr-11
LISP Working Group A. Rodriguez-Natal
Internet-Draft Cisco Systems
Intended status: Informational A. Cabellos-Aparicio
Expires: April 8, 2021 Technical University of Catalonia
V. Ermagan
Google
F. Maino
Cisco Systems
S. Barkai
Nexar Inc.
October 5, 2020
MS-originated SMRs
draft-rodrigueznatal-lisp-ms-smr-11
Abstract
This document extends [I-D.ietf-lisp-rfc6833bis] to allow Map Servers
to send SMR messages.
This extension is intended to be used in some SDN deployments that
use LISP as a southbound protocol with (P)ITRs that are compliant
with [I-D.ietf-lisp-rfc6833bis]. In this use-case mapping updates do
not come from ETRs, but rather from a centralized controller that
pushes the updates directly to the Mapping System. In such
deployments, Map Servers will benefit from having a mechanism to
inform directly (P)ITRs about updates in the mappings they are
serving. Although implementations of this extension exist, this
extension is deprecated by [I-D.ietf-lisp-pubsub] and it is being
documented for informational purposes. Newer implementations should
look into [I-D.ietf-lisp-pubsub] to support PubSub in LISP
deployments.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
Rodriguez-Natal, et al. Expires April 8, 2021 [Page 1]
Internet-Draft MS-originated SMRs October 2020
This Internet-Draft will expire on April 8, 2021.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
2. Map Server extension . . . . . . . . . . . . . . . . . . . . 3
3. Interoperability with legacy (P)ITRs . . . . . . . . . . . . 4
4. Deployment considerations . . . . . . . . . . . . . . . . . . 4
5. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 5
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
7. Security Considerations . . . . . . . . . . . . . . . . . . . 5
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 5
8.1. Normative References . . . . . . . . . . . . . . . . . . 5
8.2. Informative References . . . . . . . . . . . . . . . . . 6
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 6
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 in two entities, the Mapping System
and the Tunnel Routers. The Tunnel Routers are deployed at LISP
sites edge points and perform encapsulation and decapsulation of LISP
data packets. The Mapping System is a distributed database that
stores and disseminates EID-RLOC bindings across different Map-
Servers. LISP Tunnel Routers keep a cache of EID-RLOC mappings
pulled from the Mapping System.
There are several ways to keep this cache updated as described in
[I-D.ietf-lisp-rfc6833bis]. Among them, the Solicit Map-Request
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