Mobility for IP: Performance, Signaling and Handoff Optimization (mipshop) -------------------------------------------------------------------------- Charter Last Modified: 2008-11-11 Current Status: Active Working Group Chair(s): Stefano Faccin Vijay Devarapalli Internet Area Director(s): Jari Arkko Mark Townsley Internet Area Advisor: Jari Arkko 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 a session using a given "home address" in spite of changes in its point of attachment to the network. These changes may cause delay, packet loss, and also represent signaling overhead traffic on the network. The MIPSHOP WG has so far worked on two technologies to address these issues. Hierarchical Mobile IPv6 (HMIPv6) reduces the amount and latency of signaling between a MN, its Home Agent and one or more correspondent nodes. Mobile IPv6 Fast Handovers (FMIPv6) reduces packet loss by providing fast IP connectivity as soon as the mobile node establishes a new point of attachment at a new link. The MIPSHOP WG will continue to work on HMIPv6 and FMIPv6, and the necessary extensions to improve these protocols. The MIPSHOP WG will also identify missing components that are required for deploying these protocols and standardize the necessary extensions. The WG will also address using these protocols to provide fast handovers for network-based mobility management protocols like Proxy Mobile IPv6. The IEEE 802.21 Media Independent Handover (MIH) working group aims at providing services to assist with handoffs between heterogeneous link-layer technologies, and across IP subnet boundaries. 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. A L3 based mechanism to identify a valid information server is also required. The MIPSHOP will work on developing a protocol for transport of MIH services information and mechanisms for discovering the MIH server. Security for the transport of MIH information will also be addressed. The MOBOPTS Research Group in the IRTF is chartered to work on optimizations related to Mobile IPv6 and IP handoffs among other things. The MIPSHOP WG will take mature proposals from the MOBOPTS group and standardize them in the IETF on a case-by-case basis. The MIPSHOP WG will also consider and standardize optimizations for the Mobile IPv6 protocol and IP mobility in general. Scope of MIPSHOP: The working group will work on: 1. FMIPv6 Mobile Node - Access Router security using the AAA infrastructure Currently MIPSHOP has produced a standards track protocol for setting up security between the mobile node and access router for security FMIPv6 signaling messages. However, the protocol depends on SeND (Secure Neighbor Discovery) to be available on the mobile node and the access router. An alternate mechanism that leverages the AAA infrastructure would be useful. Many target systems where FMIPv6 is likely to be used use a AAA infrastructure to authenticate and authorize network access. The working group will work on a Informational document describing how the AAA infrastructure could be used for setting up security associations between the mobile node and the access router. 2. Prefix Management for point-to-point links with FMIPv6 Using FMIPv6 over point-to-points like requires some additional considerations with respect to managing and allocating prefixes for the mobile node on these point-to-point links. Therefore the WG will work on an Informational document to address the issues. 3. Handover optimizations when Proxy Mobile IPv6 is used for handovers Proxy Mobile IPv6 (PMIPv6) is a network-based mobility management protocol where a node in the access network, called the Mobile Access Gateway (MAG) handles mobility on behalf of the mobile node. It has been proposed to use FMIPv6 to optimize the handover in terms of reducing the packet loss and transferring relevant context from the old MAG to the new MAG. The workgin group will also work on other optimizations like the use of a transient binding cache entry for improving a PMIPv6-based handover. 4. Work on protocols and extensions for transporting information related to IEEE 802.21: The work includes the layer 3 protocol for transporting MIH related information and DHCP and DNS extensions for discovering the information servers. 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 Done Working Group Last Call on draft-ietf-mipshop-cga-cba-XX.txt Done Working Group Last Call on draft-ietf-mipshop-mis-ps Done Submit draft-ietf-mipshop-cga-cba to IESG for publication as Proposed Standard Done Working Group Last Call on draft-ietf-mipshop-fmipv6-rfc4068bis Done Working Group Last Call on draft-ietf-mipshop-handover-key-send Done Submit draft-ietf-mipshop-mis-ps to IESG for publication as Informational RFC Done Working Group Last Call on draft-ietf-mipshop-rfc4041bis Done Working Group Last Call on draft-ietf-mipshop-3gfh Done Working Group Last Call on draft-ietf-mipshop-fh80216e Done Submit draft-ietf-mipshop-fmipv6-rfc4068bis to IESG for publication as Proposed Standard Done Submit draft-ietf-mipshop-handover-key-send to IESG for publication as Proposed Standard Done Submit draft-ietf-mipshop-3gfh to IESG for publication as Informational RFC Dec 2007 Submit draft-ietf-mipshop-4140bis to IESG for publication as Proposed Standard Done Submit draft-ietf-mipshop-fh80216e to IESG for publication as Informational RFC Done Working Group Last Call on draft-ietf-mipshop-mih-support Done Submit draft-ietf-mipshop-mih-support to IESG for publication as Proposed Standard Oct 2008 Submit draft-ietf-mipshop-mos-dns-discovery to the IESG for publication as Proposed Standard Nov 2008 Working Group Last Call on draft-ietf-mipshop-mos-dns-discovery Nov 2008 Working Group Last Call on draft-ietf-mipshop-mos-dhcp-options Nov 2008 Submit draft-ietf-mipshop-mos-dhcp-options to the IESG for publication as Proposed Standard Internet-Drafts: Posted Revised I-D Title ------ ------- -------------------------------------------- Dec 2007 Nov 2008 IEEE 802.21 Mobility Services Framework Design (MSFD) Apr 2008 Oct 2008 Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Options for Mobility Server (MoS) discovery Apr 2008 Oct 2008 Locating IEEE 802.21 Mobility Servers using DNS Oct 2008 Oct 2008 Fast Handovers for Proxy Mobile IPv6 Oct 2008 Oct 2008 Transient Binding for Proxy Mobile IPv6 Request For Comments: RFC Stat Published Title ------- -- ----------- ------------------------------------ RFC4068 E Jul 2005 Fast Handovers for Mobile IPv6 RFC4140 E Aug 2005 Hierarchical Mobile IPv6 mobility management (HMIPv6) RFC4260 I Jan 2006 Mobile IPv6 Fast Handovers for 802.11 Networks RFC4866 PS May 2007 Enhanced Route Optimization for Mobile IPv6 RFC5164 I Mar 2008 Mobility Services Transport: Problem Statement RFC5270 I Jun 2008 Mobile IPv6 Fast Handovers over IEEE 802.16e Networks RFC5271 I Jun 2008 Mobile IPv6 Fast Handovers for 3G CDMA Networks RFC5269 PS Jun 2008 Distributing a Symmetric Fast Mobile IPv6 (FMIPv6) Handover Key Using SEcure Neighbor Discovery (SEND) RFC5268 PS Jun 2008 Mobile IPv6 Fast Handovers RFC5380 PS Oct 2008 Hierarchical Mobile IPv6 Mobility Management