Network Working Group F. Coras
Internet-Draft A. Cabellos-Aparicio
Intended status: Informational J. Domingo-Pascual
Expires: April 27, 2015 Technical University of Catalonia
F. Maino
cisco Systems
D. Farinacci
lispers.net
October 24, 2014
LISP Replication Engineering
draft-coras-lisp-re-06
Abstract
This document describes a method to build and optimize inter-domain
LISP router distribution trees for locator-based unicast and
multicast replication of EID-sourced multicast packets.
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Coras, et al. Expires April 27, 2015 [Page 1]Internet-Draft LISP-RE October 2014
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Definition of Terms . . . . . . . . . . . . . . . . . . . . . 3
3. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Overlay Signaling . . . . . . . . . . . . . . . . . . . . . . 6
4.1. RTR Registration . . . . . . . . . . . . . . . . . . . . 6
4.2. ETR/RTR Subscription . . . . . . . . . . . . . . . . . . 6
4.3. ETR/RTR Unsubscription . . . . . . . . . . . . . . . . . 7
5. Overlay Management . . . . . . . . . . . . . . . . . . . . . 8
5.1. RLOC Failure and Unreachability . . . . . . . . . . . . . 8
5.2. Other Overlay Management Considerations . . . . . . . . . 8
5.3. Automated Computation of RTR Level . . . . . . . . . . . 9
5.3.1. Algorithm for Computing Optimized Distribution Trees 9
6. Security Considerations . . . . . . . . . . . . . . . . . . . 10
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 11
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 11
9.1. Normative References . . . . . . . . . . . . . . . . . . 11
9.2. Informative References . . . . . . . . . . . . . . . . . 12
Appendix A. MADDBST heuristic . . . . . . . . . . . . . . . . . 12
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 13
1. Introduction
The Locator/Identifier Separation Protocol (LISP) [RFC6830] provides
the mechanisms for the separation of Location and Identity semantics
presently overloaded by IP addresses. The split results in the
creation of two namespaces that unambigously identify edge-site
network objects, Endpoint IDs (EIDs), and core routing objects,
Routing LOCators (RLOCs). Apart from aiding the scalablity of the
core routing infrastructure, the decoupling also enables the
(re)implementation of new or existing inter-domain routing
mechanisms.
Coras, et al. Expires April 27, 2015 [Page 2]Internet-Draft LISP-RE October 2014
One such mechanism is inter-domain IP source-specific multicast (SSM)
datatracker.ietf.org