Logical-Interface Support for IP Hosts with Multi-Access Support
RFC 7847

Document Type RFC - Informational (May 2016; No errata)
Last updated 2016-05-09
Replaces draft-yokota-netlmm-pmipv6-mn-itho-support
Stream IETF
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Stream WG state Submitted to IESG for Publication
Document shepherd Basavaraj Patil
Shepherd write-up Show (last changed 2016-01-20)
IESG IESG state RFC 7847 (Informational)
Consensus Boilerplate Yes
Telechat date
Responsible AD Brian Haberman
Send notices to (None)
IANA IANA review state Version Changed - Review Needed
IANA action state No IC
Internet Engineering Task Force (IETF)                     T. Melia, Ed.
Request for Comments: 7847                             Kudelski Security
Category: Informational                               S. Gundavelli, Ed.
ISSN: 2070-1721                                                    Cisco
                                                                May 2016

    Logical-Interface Support for IP Hosts with Multi-Access Support

Abstract

   A logical interface is a software semantic internal to the host
   operating system.  This semantic is available in all popular
   operating systems and is used in various protocol implementations.
   Logical-interface support is required on the mobile node attached to
   a Proxy Mobile IPv6 domain for leveraging various network-based
   mobility management features such as inter-technology handoffs,
   multihoming, and flow mobility support.  This document explains the
   operational details of the logical-interface construct and the
   specifics on how link-layer implementations hide the physical
   interfaces from the IP stack and from the network nodes on the
   attached access networks.  Furthermore, this document identifies the
   applicability of this approach to various link-layer technologies and
   analyzes the issues around it when used in conjunction with various
   mobility management features.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7847.

Melia & Gundavelli            Informational                     [Page 1]
RFC 7847                Logical-Interface Support               May 2016

Copyright Notice

   Copyright (c) 2016 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
   (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.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Hiding Link-Layer Technologies -- Approaches and
       Applicability . . . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Link-Layer Abstraction -- Approaches  . . . . . . . . . .   4
     3.2.  Link-Layer Support  . . . . . . . . . . . . . . . . . . .   5
     3.3.  Logical Interface . . . . . . . . . . . . . . . . . . . .   6
   4.  Technology Use Cases  . . . . . . . . . . . . . . . . . . . .   6
   5.  Logical-Interface Functional Details  . . . . . . . . . . . .   7
     5.1.  Configuration of a Logical Interface  . . . . . . . . . .   8
     5.2.  Logical-Interface Conceptual Data Structures  . . . . . .   9
   6.  Logical-Interface Use Cases in Proxy Mobile IPv6  . . . . . .  11
     6.1.  Multihoming Support . . . . . . . . . . . . . . . . . . .  11
     6.2.  Inter-technology Handoff Support  . . . . . . . . . . . .  12
     6.3.  Flow Mobility Support . . . . . . . . . . . . . . . . . .  13
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . .  15
   Contributors  . . . . . . . . . . . . . . . . . . . . . . . . . .  15
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  16

Melia & Gundavelli            Informational                     [Page 2]
RFC 7847                Logical-Interface Support               May 2016

1.  Introduction

   Proxy Mobile IPv6 (PMIPv6) [RFC5213] is a network-based mobility
   management protocol standardized by IETF.  One of the key goals of
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