Subject: [Mobopts] Paris minutes

From: Telemaco Melia <[email-masked]>
Date: Tue, 09 Aug 2005 13:57:39 +0200

Attached.
Let me know if something is missing.

regards,
Telemaco
MOBOPTS Research Group
Thursday, August 4, 2005
1030 - 1230 Morning Session II
Room 351
==============================

Minutes taken by Telemaco Melia, [email-masked]

Agenda
======
1. RG status update, new topics (chair, 5 - 10 minutes)

2. "Link Characteristics Information for Mobile IP", SD Park and
    J. Korhonen, 10 minutes
    draft-daniel-mip-link-characteristic-02.txt

3. "LowPan Mobility Requirements and Goals", S. Chakrabarti
    draft-chakrabarti-mobopts-lowpan-req-00, 15 minutes

4. "Link Triggers and TARZAN implementation update", K. Mitsuya
    10 minutes

5. "An efficient dynamic multicast agent approach for mobile IPv6
   multicast", HK Zhang
   draft-zhang-mipshop-multicast-dma-00.txt, 15 minutes

6. "Seamless Multicast Handover in a Hierarchical
   Mobile IPv6 Environment (M-HMIPv6)", T. Schmidt
   draft-schmidt-waehlisch-mhmipv6-03.txt, 15 minutes

7. "MPA Framework and Implementation Updates", by A. Dutta
   draft-ohba-mobopts-mpa-{framework,implementation}-01.txt,
   15 minutes

8. "Secure Proxy Neighbor Discovery using Multi-key CGAs", J. Kempf
    draft-kempf-mobopts-ringsig-ndproxy-00.txt, 15 minutes

9. "Improvement on Security and Performance of MIP6 Return Routability
    Test", F Zhao
    draft-zhao-mobopts-rr-ext-00, 15 minutes.

RG Update
=========
RG Documents status: 
- RO document: a lot of reviews/comments received on the mailing list
- Handover keys SEND document is already in the hands of the Mipshop WG

J. Korhonen on link layer characteristscs for Mobile IP
=================================================
Q&A

Farooq Bari: TCP can adjust itself with info (UDP as well). Why do you want to do something like this?
J. Korhonen: Current HO from/to WLAN GPRS TCP take long time to adjust to new characteristics. Also other transport layers.

Ajoy Singh: Do you need an explicit signalling? The MN knows hs is going to move. Please take it up on the list

Gabriel Montenegro: Why do you limit the info delivery only during the HO mechanism? The bandwitdh changes dramatically also not in HO case
Jouni Korhonen: From a general perspective makes sense to have it in the roaming signaling.
Rajeev Koodli: We have to use what exists as much as possible

Jari Arkko: You can learn information faster but what do you do with this information? What TCP does with that?
Rajeev Koodli: You have to scope the problem really well. Difference between HA and CN exists.

Christian Vogt: Why not just leave this problem to the transport? Probably this is enough to handle the issue only on the MN side.

Aaron Falk: This work is difficult. Link indication is already existing: plese read the draft
Please also refer to the link indication discusison on the technical plenary.

unknown:
A more General approach would be good

Samita Chakrabarti on Low pan Mobility requirements
===================================================

Rajeev Koodli: good start

Rie Shibui on Unified L2 triggers for L3 handovers
==================================================
Refer to the folowing document:
http://www.ietf.org/internet-drafts/draft-koki-mobopts-l2-abstractions-02.txt

Christian Vogt: FNA from userland seems to be too fast (7 ms)

Farooq Bari: Please be aware 802.21 is working in this similar area.

Zhang on An efficient dynamic multicast agent approach for mobile IPv6 multicast
================================================================================
Rajeev Koodli: Discuss on the mailing list

Thomas Schmidt on Seamless Multicast Handover in a Hierarchical Mobile IPv6 Environment M-HMIPv6
================================================================================================

Rajeev Koodli: tunnel MLD to the MAP? 
Thomas Schmidt: Yes

Rajeev Koodli: Do you have implementation? 
Thomas Schmidt: Only simulation

Christian Vogt: which simulator has been used? 
Thomas Schmidt: Omnet ++

Christian Vogt: Study of prediction: how did you do it?
Thomas Schmidt: Signal degradation and movement: ping pong effects to be taken intco account simulated with an own model
the failure depends on the model implemented

Christian Vogt: Is the code open source?
Thomas Schmidt: Yes can be available

MPA Framework and Implementation Updates
========================================

Telemaco Melia: layer two handoff latency looks really short. How did you get such short latency times?
Subir Das: we used Atheros CARDs 

Ajoy Singh: how do you do the neighborhhod disovery?
Subir Das: Use 802.21 approach for handover capabilities discovery

James kempf on Secure Proxy Neighbor Discovery using Multi-key CGAs
===================================================================

Rajeev Koodli: is there any IPR? 
James kempf: DoCoMo will grant freely the license for interop or standard document

James kempf: IETF acitvity on that? Too premature?
Rajeev Koodli: Brainstorm: more work on the topic
Jari: interesting work, we should go ahead not sure about experimental RFC

Zhao on Improvement on Security and Performance of MIP6 Return Routability Test
===============================================================================

Rajeev koodli: hash keys are generated after RR: if HoA changes the terminal regenerates the keys.
Zhao: yes

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