Bulk Binding Update Support for Proxy Mobile IPv6
RFC 6602

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Internet Engineering Task Force (IETF)                  F. Abinader, Ed.
Request for Comments: 6602                 Instituto Nokia de Tecnologia
Category: Standards Track                             S. Gundavelli, Ed.
ISSN: 2070-1721                                                 K. Leung
                                                                   Cisco
                                                             S. Krishnan
                                                                Ericsson
                                                               D. Premec
                                                            Unaffiliated
                                                                May 2012

           Bulk Binding Update Support for Proxy Mobile IPv6

Abstract

   For extending the lifetime of a mobility session, the Proxy Mobile
   IPv6 specification requires the mobile access gateway to send a Proxy
   Binding Update message to the local mobility anchor on a per-session
   basis.  In the absence of signaling semantics for performing
   operations with group-specific scope, this results in a significant
   amount of signaling traffic on a periodic basis between a given
   mobile access gateway and a local mobility anchor.  This document
   defines optimizations to the binding update and revocation operations
   in Proxy Mobile IPv6 for performing operations with group-specific
   scope with the use of a group identifier.

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/rfc6602.

Copyright Notice

   Copyright (c) 2012 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Abinader, et al.             Standards Track                    [Page 1]
RFC 6602               Bulk Binding Update Support              May 2012

   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. Conventions and Terminology .....................................4
      2.1. Conventions ................................................4
      2.2. Terminology ................................................4
   3. Bulk Binding Update Overview ....................................4
      3.1. Motivation .................................................4
      3.2. General Operation ..........................................5
   4. Message Formats .................................................8
      4.1. Extensions to Proxy Binding Update Message .................9
      4.2. Extensions to Proxy Binding Acknowledgement Message .......10
      4.3. Mobile Node Group Identifier Option .......................10
      4.4. Status Codes ..............................................11
   5. Protocol Considerations ........................................12
      5.1. MAG Considerations ........................................12
           5.1.1. Extensions to Binding Update List Entry
                  Data Structure .....................................12
           5.1.2. Requesting Bulk Binding Update Support for
                  a Mobility Session .................................12
           5.1.3. Supporting Bulk Binding Updates ....................14
      5.2. LMA Considerations ........................................15
           5.2.1. Extensions to Binding Cache Entry Data Structure ...15
           5.2.2. Enabling Bulk Binding Update Support for a
                  Mobility Session ...................................16
           5.2.3. Supporting Bulk Binding Updates ....................18
   6. Protocol Configuration Variables ...............................20
      6.1. Local Mobility Anchor - Configuration Variables ...........20
      6.2. Mobile Access Gateway - Configuration Variables ...........20
   7. IANA Considerations ............................................20
   8. Security Considerations ........................................21