LISP Delegated Database Tree
draft-ietf-lisp-ddt-09

Document Type Active Internet-Draft (lisp WG)
Last updated 2017-03-02 (latest revision 2017-01-18)
Replaces draft-fuller-lisp-ddt
Stream IETF
Intended RFC status Experimental
Formats plain text xml pdf html bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Luigi Iannone
Shepherd write-up Show (last changed 2016-06-13)
IESG IESG state RFC Ed Queue
Consensus Boilerplate Yes
Telechat date
Responsible AD Deborah Brungard
Send notices to (None)
IANA IANA review state Version Changed - Review Needed
IANA action state No IC
RFC Editor RFC Editor state AUTH48
Network Working Group                                          V. Fuller
Internet-Draft
Intended status: Experimental                                   D. Lewis
Expires: July 22, 2017                                        V. Ermagan
                                                           Cisco Systems
                                                                 A. Jain
                                                        Juniper Networks
                                                              A. Smirnov
                                                           Cisco Systems
                                                        January 18, 2017

                      LISP Delegated Database Tree
                         draft-ietf-lisp-ddt-09

Abstract

   This document describes the LISP Delegated Database Tree (LISP-DDT),
   a hierarchical, distributed database which embodies the delegation of
   authority to provide mappings from LISP Endpoint Identifiers (EIDs)
   to Routing Locators (RLOCs).  It is a statically-defined distribution
   of the EID namespace among a set of LISP-speaking servers, called DDT
   nodes.  Each DDT node is configured as "authoritative" for one or
   more EID-prefixes, along with the set of RLOCs for Map Servers or
   "child" DDT nodes to which more-specific EID-prefixes are delegated.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on July 22, 2017.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Fuller, et al.            Expires July 22, 2017                 [Page 1]
Internet-Draft        LISP Delegated Database Tree          January 2017

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://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
   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   5
   4.  Database organization . . . . . . . . . . . . . . . . . . . .   7
     4.1.  XEID prefixes . . . . . . . . . . . . . . . . . . . . . .   7
     4.2.  DDT database tree structure . . . . . . . . . . . . . . .   7
     4.3.  Configuring prefix delegation . . . . . . . . . . . . . .   8
       4.3.1.  The root DDT node . . . . . . . . . . . . . . . . . .   9
   5.  DDT Map-Request . . . . . . . . . . . . . . . . . . . . . . .   9
   6.  The Map-Referral message  . . . . . . . . . . . . . . . . . .  10
     6.1.  Action codes  . . . . . . . . . . . . . . . . . . . . . .  10
     6.2.  Referral set  . . . . . . . . . . . . . . . . . . . . . .  11
     6.3.  Incomplete flag . . . . . . . . . . . . . . . . . . . . .  11
     6.4.  Map-Referral Message Format . . . . . . . . . . . . . . .  11
       6.4.1.  SIG section . . . . . . . . . . . . . . . . . . . . .  14
   7.  DDT network elements and their operation  . . . . . . . . . .  15
     7.1.  DDT node  . . . . . . . . . . . . . . . . . . . . . . . .  15
       7.1.1.  Match of a delegated prefix (or sub-prefix) . . . . .  15
       7.1.2.  Missing delegation from an authoritative prefix . . .  16
     7.2.  DDT Map Server  . . . . . . . . . . . . . . . . . . . . .  16
     7.3.  DDT client  . . . . . . . . . . . . . . . . . . . . . . .  17
       7.3.1.  Queuing and sending DDT Map-Requests  . . . . . . . .  17
       7.3.2.  Receiving and following referrals . . . . . . . . . .  18
       7.3.3.  Handling referral errors  . . . . . . . . . . . . . .  20
       7.3.4.  Referral loop detection . . . . . . . . . . . . . . .  20
   8.  Pseudo Code and Decision Tree diagrams  . . . . . . . . . . .  21
Show full document text