Mobility for IP: Performance, Signaling and Handoff Optimization (mipshop)

Last Modified: 2006-10-04

Additional information is available at tools.ietf.org/wg/mipshop

Chair(s):

  • Stefano Faccin <smfaccin@marvell.com>

  • Vijay Devarapalli <vijay.devarapalli@azairenet.com>

    Internet Area Director(s):

  • Jari Arkko <jari.arkko@piuha.net>
  • Mark Townsley <townsley@cisco.com>

    Internet Area Advisor:

  • Jari Arkko <jari.arkko@piuha.net>

    Mailing Lists:

    General Discussion: mipshop@ietf.org
    To Subscribe: mipshop-request@ietf.org
    In Body: subscribe
    Archive: http://www.ietf.org/mail-archive/web/mipshop/index.html

    Description of Working Group:

    Mobile IPv6 enables IPv6 mobile nodes to continue using a given "home
    address" in spite of changes in its point of attachment to the
    network. These changes may cause packet loss, and also represent
    overhead traffic on the network. The previous MIPSHOP charter directed
    the group to continue work (started by the Mobile IP Working group) on
    two technologies to address these issues. Hierarchical Mobile IPv6
    (HMIPv6, RFC 4140) reduces the amount and latency of signaling between
    a MN, its Home Agent and one or more correspondent nodes. Fast
    Handovers for Mobile IPv6 (FMIPv6, RFC 4068) reduces packet loss by
    providing fast IP connectivity as soon as the mobile node establishes
    a new point of attachment at a new link.

    As part of its previous set of work items, MIPSHOP published these two
    protocols as experimental RFCs. An information document on how FMIPv6
    can operate over IEEE 802.11 was also published as an informational
    RFC. Further implementation work by the community has increased the
    understanding of how FMIPv6 behaves or should behave on other link
    layers, and in general. Similarly, further implementation and
    experimentation with HMIPv6 has resulted in better understanding of
    the protocol. Accordingly, MIPSHOP will continue work on HMIPv6 and
    FMIPv6 in order to prepare their publication as proposed standards.

    Additionally, the IEEE 802.21 Media Independent Handoff (MIH) working
    group aims at providing services to assist with handoffs between
    heterogeneous link-layer technologies, and across IP subnet
    boundaries. The information exchanges defined by IEEE 802.21 are
    classified as MI (Media Independent) Event Service (MIES), MI Command
    Service (MICS), and MI Information Service (MIIS). The MIIS provides
    topological and location-related information of service networks. The
    MIES provides timely communications of wireless environment
    information via the delivery of events originating across the
    link-layer or farther away. The MICS is an analogous service for
    commands which can change the state of the wireless link or of a
    host's point of attachment, potentially triggering further event
    generation. MIH services can be delivered through link-layer specific
    solutions and/or through a "layer 3 or above" protocol. MIPSHOP will
    define the delivery of information for MIH services for this latter
    case. Notice that this allows the network information to reside
    anywhere (not necessarily across the link-layer hop), and enables MIH
    services even in the absence of the corresponding link-layer
    support. An L2 or L3 based mechanism to identify a valid information
    server is also required; in particular for L3, we expect that any of
    the several current L3 discovery mechanisms will be used. A liaison
    with IEEE 802.21 has been established, and access to the IEEE 802.21
    drafts is granted to mipshop members. Interested members need to send
    a request to the WG chairs in order to obtain a copy of the current
    IEEE 802.21 draft.

    There have been several proposals to improve upon the Return
    Routability procedure defined in MIPv6 (RFC 3775), both in terms of
    the security of the mechanism as well as with respect to its
    performance. In particular, discussions within the MOBOPTS Research
    Group of the IRTF have centered on reducing the round trip times
    required to complete the procedure, and on increasing the length of
    time before the procedure needs to be run again. Some proposals are
    mature enough that they will be taken over by MIPSHOP for
    standardization.

    The WG will be very proactive in seeking AD-coordinated security
    reviews of the drafts developed in the WG.

    Scope of MIPSHOP:

    The working group will:

    1. Revise the specification of HMIPv6 (RFC 4140) protocol to
    advance it to Proposed Standard. This implies:

    * Work on MN-MAP security
    * Streamline and refine the current HMIPv6 specification.
    * Document: draft-ietf-mipshop-hmipv6-rev-XX.txt

    2. Revise the specification of FMIPv6 protocol (RFC 4068) to
    advance it to Proposed Standard.

    * Work on MN-AR (access router) security using both the AAA
    infrastructure, and keys derived from SeND

    o Documents:
    draft-ietf-mipshop-handover-keys-aaa-XX.txt,
    draft-ietf-mipshop-handover-key-send-XX.txt

    * Streamline and refine the current FMIPv6 specification
    (draft-ietf-mipshop-fmipv6-rev-XX.txt)

    3. Work on the application of FMIPv6 on two examples link-layers
    for advancement as Informational RFCs:

    * IEEE 802.16e (and WiMax), and
    * 3G CDMA 2K networks

    * Documents: draft-ietf-mipshop-fh80216e-XX.txt,
    draft-ietf-mipshop-3gfh-XX.txt

    4. Produce a document on improving MIPv6 Return Routability via
    both Cryptographically Generated Addresses and Credit-based
    Authorization for advancement as Proposed Standard

    * Documents: draft-ietf-mipshop-cga-cba-XX.txt

    5. Work on areas of mutual interest to IEEE 802.21 and MIPSHOP:

    * Produce the required protocol enhancements or
    specifications for IP-based support of Media-Independent
    Information, Command and Event Services.

    * Documents: draft-ietf-mipshop-mih-info-elements-XX.txt
    (information elements),
    draft-ietf-mipshop-mih-support-XX.txt (transport of 802.21
    services over IP, including security aspects)

    Tackling further work, although possible, requires re-chartering.

    Goals and Milestones:

    Done  Working Group Last Call on draft-ietf-mipshop-hmip-xx.txt
    Done  Working Group Last Call on draft-ietf-mipshop-lmm-requirements-XX.txt
    Done  Working Group Last Call on draft-ietf-mipshop-fmipv6-xx.txt
    Done  Discuss Last Call comments and security analyses at IETF 58
    Done  Submit draft draft-ietf-mipshop-lmm-requirements-XX.txt to IESG for consideration of publication as Informational
    Done  Submit draft-ietf-mipshop-fmipv6-xx.txt to IESG for consideration of publication as Experimental
    Done  Submit draft-ietf-mipshop-hmip-xx.txt to IESG for consideration of publication as Experimental
    Done  Working Group Last Call on draft-ietf-mipshop-80211fh-xx.txt for Informational
    Done  Submit draft-ietf-mipshop-80211fh-xx.txt to IESG for consideration of publication as Informational
    Oct 2006  Working Group Last Call on draft-ietf-mipshop-cga-cba-XX.txt
    Nov 2006  Working Group Last Call on draft-ietf-mipshop-mih-info-elements-XX.txt
    Nov 2006  Working Group Last Call on draft-ietf-mipshop-fmipv6-rfc4068bis-XX.txt
    Dec 2006  Working Group Last Call on draft-ietf-mipshop-3gfh-XX.txt
    Dec 2006  Working Group Last Call on draft-ietf-mipshop-handover-key-send-XX.txt
    Jan 2007  Submit draft-ietf-mipshop-fmipv6-rfc4068bis-XX.txt to IESG for publication as Proposed Standard
    Feb 2007  Working Group Last Call on draft-ietf-mipshop-fh80216e-XX.txt
    Feb 2007  Working Group Last Call on draft-ietf-mipshop-rfc4041bis-XX.txt
    Mar 2007  Working Group Last Call on HMIPv6 Security draft
    Mar 2007  Working Group Last Call on draft-ietf-mipshop-handover-keys-aaa-XX.txt
    Mar 2007  Submit draft-ietf-mipshop-cga-cba-XX.txt to IESG for publication as Proposed Standard
    Mar 2007  Submit draft-ietf-mipshop-3gfh-XX.txt to IESG for publication as Informational RFC
    Apr 2007  Submit draft-ietf-mipshop-handover-key-send-XX.txt to IESG for publication as Proposed Standard
    Jun 2007  Submit draft-ietf-mipshop-fh80216e-XX.txt to IESG for publication as Informational RFC
    Jul 2007  Submit draft-ietf-mipshop-mih-info-elements-XX.txt to IESG for publication as Proposed Standard
    Jul 2007  Submit draft-ietf-mipshop-hmipv6-rev-XX.txt to IESG for publication as Proposed Standard
    Aug 2007  Begin security review of draft-ietf-mipshop-mih-support-XX.txt
    Sep 2007  Working Group Last Call on draft-ietf-mipshop-mih-support-XX.txt
    Nov 2007  Submit draft on HMIPv6 security to IESG for publication as Proposed Standard
    Nov 2007  Submit draft-ietf-mipshop-handover-key-aaa-XX.txt to IESG for publication as Proposed Standard
    Jan 2008  Submit draft-ietf-mipshop-mih-support-XX.txt to IESG for publication as Proposed Standard

    Internet-Drafts:

    Mobile IPv6 Fast Handovers for 3G CDMA Networks (85670 bytes)
    Fast Handovers for Mobile IPv6 (94430 bytes)
    Applying Cryptographically Generated Addresses and Credit-Based Authorization to Mobile IPv6 (110886 bytes)

    Request For Comments:

    Fast Handovers for Mobile IPv6 (RFC 4068) (93591 bytes)
    Hierarchical Mobile IPv6 mobility management (HMIPv6) (RFC 4140) (71503 bytes)
    Mobile IPv6 Fast Handovers for 802.11 Networks (RFC 4260) (35277 bytes)
    IETF Secretariat - Please send questions, comments, and/or suggestions to ietf-web@ietf.org.

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