recharter_old.txt   recharter_new_jari2.txt 
Network-Based Mobility Extensions (netext) Mobility Extensions (netext)
Last Modified: 2009-06-18 Last Modified: 2010-01-19
Additional information is available at tools.ietf.org/wg/netext Additional information is available at tools.ietf.org/wg/netext
Chair(s): Chair(s):
* Rajeev Koodli <rkoodli@starentnetworks.com> * Rajeev Koodli <rkoodli@starentnetworks.com>
* Basavaraj Patil <basavaraj.patil@nokia.com> * Basavaraj Patil <basavaraj.patil@nokia.com>
Internet Area Director(s): Internet Area Director(s):
skipping to change at line 62 skipping to change at line 62
LMA Redirection: a specification for allowing an LMA to redirect a MAG LMA Redirection: a specification for allowing an LMA to redirect a MAG
to another LMA. This is primarily needed as a way to perform load to another LMA. This is primarily needed as a way to perform load
balancing. This functionality is complementary to implementation balancing. This functionality is complementary to implementation
techniques that allow distributed MAG implementations to move tasks techniques that allow distributed MAG implementations to move tasks
around without a visible impact at the protocol level, and the around without a visible impact at the protocol level, and the
initial LMA discovery work in the NETLMM WG. An applicability statement initial LMA discovery work in the NETLMM WG. An applicability statement
describing the situations where the new functionality is or is not describing the situations where the new functionality is or is not
applicable has to be included in the specification. applicable has to be included in the specification.
Hiding access technology changes from host IP layer: Proxy mobility is
based on the assumption that changes in host IP stacks are
undesirable. However, link layer implementations can hide the
actually used physical interfaces from the IP stack. For instance, a
single interface might transmit packets over different media, as is
common practice in certain radio networks. This can be used to achieve
inter-access handovers or flow mobility, i.e., the movement of
selected flows from one access technology to another. The
specification of any actual link layer mechanisms is outside the scope
of the working group, but the group works on the following:
- Informational applicability statement that analyzes the issues
involved with this approach and characterizes the contexts in which
such use is or is not appropriate.
- The working group will determine if protocol extensions are required
between the Proxy Mobile IPv6 network nodes (MAGs and LMAs) to
support the ability for a single host interface to transmit packets
over different media and the ability to distribute specific traffic
flows on different media components of that single interface. The
relevant protocol extensions will be developed as necessary. The WG
will assume that there the host has an interface that is capable of
employing multiple media.
Radius Extensions to PMIP6: In order to enable network based
mobility using PMIP6, the policy profile needs to signal a set of
attributes and policies to the MAG and LMA. New Radius attributes
need to be specified that are relevant to PMIP6 based
mobility. This work item will specify Radius extensions and
attributes specific to PMIP6.
The work in this charter is entirely internal to the network and does The work in this charter is entirely internal to the network and does
not affect hosts in any way (except perhaps through impacting packet not affect host IP stack operation in any way (except perhaps through
forwarding capacity visible to the hosts). impacting packet forwarding capacity visible to the hosts). The working
group is not allowed to specify new IP layer protocol mechanisms to signal
mobility related events between the host and the network.
The proposed activity will be complementary to the existing IETF Working The proposed activity will be complementary to the existing IETF Working
Groups, notably the NETLMM and MEXT WGs. The NETEXT working group will Groups, notably the NETLMM and MEXT WGs. The NETEXT working group will
also act as the primary forum where new extensions on top of the Proxy also act as the primary forum where new extensions on top of the Proxy
Mobile IPv6 protocol can be developed. The addition of such new Mobile IPv6 protocol can be developed. The addition of such new
extensions to the working group involves addition of the extension to extensions to the working group involves addition of the extension to
this charter through the normal rechartering process. this charter through the normal rechartering process.
This initial charter excludes a number of possible work items that were
discussed in the March 2009 BOF. The working group should continue the
discussion about a possible update of its charter and principles under
which the new work items must operate under. The completion of the work
items in the initial charter is not a requirement for the rechartering
to become possible.
Goals and Milestones: Goals and Milestones:
May 2009 WG chartered May 2009 WG chartered
Jul 2009 Initial WG draft on Bulk Refresh Jul 2009 Initial WG draft on Bulk Refresh
Jul 2009 Decision on the inclusion of possible additional work items Jul 2009 Decision on the inclusion of possible additional work items
Sep 2009 Initial WG draft on LMA Redirection Sep 2009 Initial WG draft on LMA Redirection
Nov 2009 Initial WG draft on Route Optimization Sep 2009 Initial WG draft on Localized Routing
Dec 2009 Submit Bulk Refresh to IESG for publication as a Proposed Standard RFC Dec 2009 Submit Bulk Refresh to IESG for publication as a Proposed Standard RFC
Jan 2010 Submit LMA Redirection to IESG for publication as a Proposed Standard RFC Jan 2010 Submit LMA Redirection to IESG for publication as a Proposed Standard RFC
Apr 2010 Submit Route Optimization to IESG for publication as a Proposed Standard RFC Mar 2010 Initial WG document on RADIUS extensions to PMIP6
Apr 2010 Submit Localized Routing to IESG for publication as a Proposed Standard RFC
May 2010 Initial WG document on Applicability Statement on Multiple Media on One Interface
Jun 2010 WG decision on what Proxy Mobile IPv6 support is needed to support multiple media on one interface
Sep 2010 Initial WG document(s) on Proxy Mobile IPv6 Extensions to Support Multiple Media on One Interface
Oct 2010 Submit RADIUS extensions to PMIP6 to IESG for publication as a Proposed Standard
Dec 2010 Submit Applicability Statement on Multiple Media on One Interface to IESG for publication as Informational RFC
Feb 2011 Submit Proxy Mobile IPv6 Extensions to Support Multiple Media on One Interface for publication as Proposed Standard RFC(s)
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