LISP Control Plane for SRv6 Endpoint Mobility
draft-rodrigueznatal-lisp-srv6-00

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Last updated 2018-07-02
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LISP Working Group                                    A. Rodriguez-Natal
Internet-Draft                                                V. Ermagan
Intended status: Experimental                                   F. Maino
Expires: January 3, 2019                                        D. Dukes
                                                            P. Camarillo
                                                             C. Filsfils
                                                     Cisco Systems, Inc.
                                                            July 2, 2018

             LISP Control Plane for SRv6 Endpoint Mobility
                   draft-rodrigueznatal-lisp-srv6-00

Abstract

   This document describes the use of the LISP Control Plane to support
   endpoint mobility and Location/ID separation in Segment Routing v6
   (SRv6) deployments.

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   This Internet-Draft will expire on January 3, 2019.

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   Copyright (c) 2018 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
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   include Simplified BSD License text as described in Section 4.e of

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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Operation . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Provisioning  . . . . . . . . . . . . . . . . . . . . . .   4
     3.2.  Endpoint Registration . . . . . . . . . . . . . . . . . .   5
     3.3.  Endpoint Resolution . . . . . . . . . . . . . . . . . . .   6
     3.4.  SR Policy Resolution  . . . . . . . . . . . . . . . . . .   6
       3.4.1.  Decentralized . . . . . . . . . . . . . . . . . . . .   7
       3.4.2.  Centralized . . . . . . . . . . . . . . . . . . . . .   7
     3.5.  Traffic Encapsulation . . . . . . . . . . . . . . . . . .   8
     3.6.  Endpoint Mobility . . . . . . . . . . . . . . . . . . . .   9
   4.  Segment Routing LCAF (SR LCAF)  . . . . . . . . . . . . . . .   9
     4.1.  SR-MPLS . . . . . . . . . . . . . . . . . . . . . . . . .  10
     4.2.  SRv6  . . . . . . . . . . . . . . . . . . . . . . . . . .  11
     4.3.  Traffic Steering Tag  . . . . . . . . . . . . . . . . . .  12
   5.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     5.1.  Normative References  . . . . . . . . . . . . . . . . . .  12
     5.2.  Informative References  . . . . . . . . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   This document defines how to use the LISP Control Plane
   [I-D.ietf-lisp-rfc6833bis] to support endpoint mobility and Location/
   ID separation in those IPv6 deployments that are using SRv6 Network
   Programming [I-D.filsfils-spring-srv6-network-programming].  The LISP
   control plane is used to lookup "where" an endpoint is located, while
   SRv6 specifies "how" to program the SRv6 network infrastructure to
   transport traffic to that location.

   To enable this, the egress Provider Edge (PE) nodes register via LISP
   control plane their local SRv6 Segment IDs (SIDs) to be used to reach
   endpoints attached to them.  Ingress PE nodes retrieve via LISP
   control plane this mapping information, and use SRv6 network
   programming to encapsulate and steer the traffic towards the
   destination egress PE node.

   The LISP control plane provides on-demand endpoint-to-SID mapping, as
   well as support for anchorless dynamic endpoint mobility.

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2.  Overview
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