DLEP Link Identifier Extension
draft-ietf-manet-dlep-lid-extension-04

Document Type Active Internet-Draft (manet WG)
Last updated 2018-11-08 (latest revision 2018-08-23)
Replaces draft-dlep-lid
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication
Document shepherd Justin Dean
Shepherd write-up Show (last changed 2018-08-22)
IESG IESG state AD Evaluation
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Responsible AD Alvaro Retana
Send notices to Justin Dean <bebemaster@gmail.com>, aretana.ietf@gmail.com
Mobile Ad hoc Networks Working Group                           R. Taylor
Internet-Draft                                    Airbus Defence & Space
Intended status: Standards Track                              S. Ratliff
Expires: February 24, 2019                                    VT iDirect
                                                         August 23, 2018

                     DLEP Link Identifier Extension
                 draft-ietf-manet-dlep-lid-extension-04

Abstract

   There exists a class of modems that would benefit from supporting the
   Dynamic Link Exchange Protocol (DLEP) [RFC8175] but do not present a
   single Layer 2 network domain as required by DLEP.  Such devices may
   be:

   o  Modems that maintain a varying link to some upstream backbone
      network infrastructure, where the ability to announce link state
      and DLEP metrics is desired, but the concept of a DLEP destination
      router for the backbone does not apply.  Examples of such devices
      can include LTE modems, IEEE 802.11 stations not in ad-hoc mode,
      and some satellite terminals.

   o  Modems that provide Layer 3 wide area network connectivity between
      devices, where remote DLEP destinations do exist, but are not
      directly reachable by MAC address, such as modems that contain
      embedded routing functionality.

   This document introduces an optional extension to the core DLEP
   specification, allowing DLEP to be used between routers and modems
   that operate in this way.

   Note:

   o  This document is intended as an extension to the core DLEP
      specification, and readers are expected to be fully conversant
      with the operation of core DLEP.

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 https://datatracker.ietf.org/drafts/current/.

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Internet-Draft       DLEP Link Identifier Extension          August 2018

   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 February 24, 2019.

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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   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
     1.1.  Requirements  . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Operation . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Identifier Restrictions . . . . . . . . . . . . . . . . .   4
     2.2.  Negotiation . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  New Data Items  . . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Link Identifier Length Data Item  . . . . . . . . . . . .   5
     3.2.  Link Identifier Data Item . . . . . . . . . . . . . . . .   6
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   The Dynamic Link Exchange Protocol (DLEP) [RFC8175] describes a
   protocol for modems to advertise the status of wireless links between
   reachable destinations to attached routers.  The core specification
   of the protocol assumes that every modem in the radio network has an
   attached DLEP router, and requires that the MAC address of the DLEP
   interface on the attached router is used to identify the destination

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   in the network for purposes of reporting the state and quality of the
   link to that destination.
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