LISP Mapping Bulk Retrieval
draft-boucadair-lisp-bulk-07

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Network Working Group                                       M. Boucadair
Internet-Draft                                              C. Jacquenet
Intended status: Standards Track                                  Orange
Expires: October 5, 2018                                  April 03, 2018

                      LISP Mapping Bulk Retrieval
                      draft-boucadair-lisp-bulk-07

Abstract

   This document extends Locator/ID Separation Protocol (LISP) with a
   capability for bulk mapping retrieval.  It does so by defining new
   LISP messages that are meant to facilitate state recovery of mapping
   tables and improve Ingress Tunnel Routers (ITR) recovery times, in
   particular.  Unlike base LISP, these new messages are transported
   over TCP.

   In addition, this document allows to request mappings that match
   destination IP prefixes, names, or AS numbers.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on October 5, 2018.

Copyright Notice

   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
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect

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   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
   3.  Bulk Mapping Retrieval: Message Formats . . . . . . . . . . .   3
     3.1.  Map-Bulk-Request Message Format . . . . . . . . . . . . .   3
     3.2.  Map-Bulk-Response Message Format  . . . . . . . . . . . .   5
   4.  Generating a Map-Bulk-Request  Message  . . . . . . . . . . .   7
   5.  Processing a Map-Bulk-Request Message . . . . . . . . . . . .   8
   6.  Processing a Map-Bulk-Reply Message . . . . . . . . . . . . .   9
   7.  Bulk Mapping Retrival from Multiple Resolvers . . . . . . . .  10
   8.  Sample Examples . . . . . . . . . . . . . . . . . . . . . . .  11
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   11. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  13
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     12.1.  Normative references . . . . . . . . . . . . . . . . . .  13
     12.2.  Informative references . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   Locator/ID Separation Protocol (LISP, [RFC6830] ) operation relies
   upon a mapping mechanism that is used by ingress/egress Tunnel
   Routers (xTR) to forward traffic over the LISP network.  This
   document extends LISP with a capability for bulk mappings retrieval.
   It does so by defining new LISP messages that are meant to facilitate
   state recovery of mapping tables and improve Ingress Tunnel Routers
   (ITR) recovery times, in particular.

   The base LISP specification does not define how a requestor may ask
   for multiple EIDs.  Indeed, the current LISP specification [RFC6830]
   states the following:

         Support for requesting multiple EIDs in a single Map-Request
         message will be specified in a future version of the protocol.

   [I-D.boucadair-lisp-multiple-records] defines a backward compatible
   extension of the LISP Map-Request message to request multiple
   records.

   This document defines a more reliable method for the retrieval of
   mapping records from one or multiple Map-Resolvers (Section 3).  It

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   does so by using TCP ([RFC0793]) as a transport protocol for
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