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Separation of Control and User Plane for Proxy Mobile IPv6 (RFC7389)

IP.com Disclosure Number: IPCOM000239337D
Original Publication Date: 2014-Oct-01
Included in the Prior Art Database: 2014-Oct-31
Document File: 24 page(s) / 26K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Wakikawa: AUTHOR [+4]

Abstract

A Proxy Mobile IPv6 (PMIPv6) infrastructure comprises two primary entities: LMA (local mobility anchor) and MAG (mobile access gateway). The interface between the MAG and LMA consists of the control plane and user plane. The control plane is responsible for signaling messages between the MAG and LMA, such as the Proxy Binding Update (PBU) and Proxy Binding Acknowledgement (PBA) messages to establish a mobility binding. In addition, the control-plane components in the MAG and LMA are also responsible for setting up and tearing down a bidirectional tunnel between the MAG and LMA. The user plane is used for carrying the mobile node's IP traffic between the MAG and the LMA over the bidirectional tunnel.

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Internet Engineering Task Force (IETF)                       R. Wakikawa Request for Comments: 7389                               Softbank Mobile Category: Standards Track                                  R. Pazhyannur ISSN: 2070-1721                                            S. Gundavelli                                                                    Cisco                                                               C. Perkins                                                           Futurewei Inc.                                                             October 2014

        Separation of Control and User Plane for Proxy Mobile IPv6

Abstract

   This document specifies a method to split the control plane (CP) and    user plane (UP) for a network infrastructure based on Proxy Mobile    IPv6 (PMIPv6).  Existing specifications allow a mobile access gateway    (MAG) to separate its control and user plane using the Alternate    Care-of Address mobility option for IPv6 or Alternate IPv4 Care-of    Address option for IPv4.  However, the current specification does not    provide any mechanism allowing the local mobility anchor (LMA) to    perform an analogous functional split.  To remedy that shortcoming,    this document specifies a mobility option enabling an LMA to provide    an alternate LMA address to be used for the bidirectional user-plane    traffic between the MAG and LMA.  With this new option, an LMA will    be able to use an IP address for its user plane that is different    than the IP address used for the control plane.

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on    Internet Standards is available in 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/rfc7389.

 Wakikawa, et al.             Standards Track                    [Page 1]
 RFC 7389                   PMIPv6 CP-UP Split               October 2014

 Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Tr...