Fast Handovers for Proxy Mobile IPv6
RFC 5949
Internet Engineering Task Force (IETF) H. Yokota
Request for Comments: 5949 KDDI Lab
Category: Standards Track K. Chowdhury
ISSN: 2070-1721 R. Koodli
Cisco Systems
B. Patil
Nokia
F. Xia
Huawei USA
September 2010
Fast Handovers for Proxy Mobile IPv6
Abstract
Mobile IPv6 (MIPv6; RFC 3775) provides a mobile node with IP mobility
when it performs a handover from one access router to another, and
fast handovers for Mobile IPv6 (FMIPv6) are specified to enhance the
handover performance in terms of latency and packet loss. While
MIPv6 (and FMIPv6 as well) requires the participation of the mobile
node in the mobility-related signaling, Proxy Mobile IPv6 (PMIPv6;
RFC 5213) provides IP mobility to nodes that either have or do not
have MIPv6 functionality without such involvement. Nevertheless, the
basic performance of PMIPv6 in terms of handover latency and packet
loss is considered no different from that of MIPv6.
When the fast handover is considered in such an environment, several
modifications are needed to FMIPv6 to adapt to the network-based
mobility management. This document specifies the usage of fast
handovers for Mobile IPv6 (FMIPv6; RFC 5568) when Proxy Mobile IPv6
is used as the mobility management protocol. Necessary extensions
are specified for FMIPv6 to support the scenario when the mobile node
does not have IP mobility functionality and hence is not involved
with either MIPv6 or FMIPv6 operations.
Yokota, et al. Standards Track [Page 1]
RFC 5949 Proxy-Based Fast Handover September 2010
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/rfc5949.
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Yokota, et al. Standards Track [Page 2]
RFC 5949 Proxy-Based Fast Handover September 2010
Table of Contents
1. Introduction ....................................................3
2. Requirements Notation ...........................................4
3. Terminology .....................................................4
4. Proxy-Based FMIPv6 Protocol Overview ............................5
4.1. Protocol Operation .........................................7
4.2. Inter-AR Tunneling Operation ..............................14
4.3. IPv4 Support Considerations ...............................16
5. PMIPv6-Related Fast Handover Issues ............................16
5.1. Manageability Considerations ..............................16
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