NSIS Protocol Operation in Mobile Environments
RFC 5980

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Internet Engineering Task Force (IETF)                     T. Sanda, Ed.
Request for Comments: 5980                                     Panasonic
Category: Informational                                            X. Fu
ISSN: 2070-1721                                 University of Goettingen
                                                                S. Jeong
                                                                    HUFS
                                                               J. Manner
                                                        Aalto University
                                                           H. Tschofenig
                                                  Nokia Siemens Networks
                                                              March 2011

             NSIS Protocol Operation in Mobile Environments

Abstract

   Mobility of an IP-based node affects routing paths, and as a result,
   can have a significant effect on the protocol operation and state
   management.  This document discusses the effects mobility can cause
   to the Next Steps in Signaling (NSIS) protocol suite, and shows how
   the NSIS protocols operate in different scenarios with mobility
   management protocols.

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/rfc5980.

Sanda, et al.                 Informational                     [Page 1]
RFC 5980               NSIS Signaling in Mobility             March 2011

Copyright Notice

   Copyright (c) 2011 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
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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.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

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RFC 5980               NSIS Signaling in Mobility             March 2011

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Requirements Notation and Terminology  . . . . . . . . . . . .  4
   3.  Challenges with Mobility . . . . . . . . . . . . . . . . . . .  5
   4.  Basic Operations for Mobility Support  . . . . . . . . . . . .  8
     4.1.  General Functionality  . . . . . . . . . . . . . . . . . .  8
     4.2.  QoS NSLP . . . . . . . . . . . . . . . . . . . . . . . . .  9
     4.3.  NATFW NSLP . . . . . . . . . . . . . . . . . . . . . . . . 12
     4.4.  Localized Signaling in Mobile Scenarios  . . . . . . . . . 13
       4.4.1.  CRN Discovery  . . . . . . . . . . . . . . . . . . . . 15
       4.4.2.  Localized State Update . . . . . . . . . . . . . . . . 15
   5.  Interaction with Mobile IPv4/v6  . . . . . . . . . . . . . . . 16
     5.1.  Interaction with Mobile IPv4 . . . . . . . . . . . . . . . 17
     5.2.  Interaction with Mobile IPv6 . . . . . . . . . . . . . . . 19
     5.3.  Interaction with Mobile IP Tunneling . . . . . . . . . . . 20
       5.3.1.  Sender-Initiated Reservation with Mobile IP Tunnel . . 20
       5.3.2.  Receiver-Initiated Reservation with Mobile IP
               Tunnel . . . . . . . . . . . . . . . . . . . . . . . . 23
       5.3.3.  CRN Discovery and State Update with Mobile IP