#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# NEMO WG WEDNESDAY 9, NOVEMBER 2005 13:00-15:00
# 64th IETF Meeting Vancouver
# http://www.ietf.org/html.charters/nemo-charter.html
#
# MEETING MINUTES
#
# All NEMO WG related documents available on
# http://www.mobilenetworks.org/nemo
# Slides will be posted in http://www.mobilenetworks.org/nemo/ietf64/
# and are available in the IETF proceedings.
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 Welcoming, Agenda Bashing, TAHI announcement and WG doc status ................ 05mins
Chairs
2. WG Documents Status & Last Calls
- Would like some working group input on MIB and Prefix Delegation drafts. Not having a
discussion on them today, but feel free to discuss on the mailing list.
2a WG Last Call: NEMO Terminology ................................................. 10mins
Thierry Ernst
http://www.ietf.org/internet-drafts/draft-ietf-nemo-terminology-04.txt
Issues: http://www.sfc.wide.ad.jp/~ernst/nemo/
- Last call was on October 26; no comments.
- Thierry went through the list of open issues.
- Issue 15: there were comments that the i-face and e-face may not be helpful in clearing
up potential confusion, as was previously discussed. Decided to eliminate them from the
document.
- Question: how is NEMO-link different than a normal link?
- Goal is to put this through; it can be updated later to contain necessary terms (i.e. RO
or MH)
2b NEMO Requirement ............................................................... 05mins
Thierry Ernst
http://www.ietf.org/internet-drafts/draft-ietf-nemo-requirements-05.txt
Issues: http://www.sfc.wide.ad.jp/~ernst/nemo/
- Issues discussed; this document will also move forward to IESG with Terminology.
2c NEMO Home Network Models ....................................................... 10mins
Vijay Devarapalli
http://www.ietf.org/internet-drafts/draft-ietf-nemo-home-network-models-05.txt
Issues:
http://www.mobilenetworks.org/~pthubert/draft-ietf-nemo-home-network-models-issues.html
- Describes different ways of configuring home network (4 ways).
- Went through a couple of reviews.
- MR configuring home address from MNP; text added to clarify.
- Emulate returning to virtual home link: too complicated; text removed from appendix.
- Submitted to the IESG.
3 Analysis of Multihoming in Network Mobility Support ............................ 15mins
ChanWah Ng
http://www.ietf.org/internet-drafts/draft-ietf-nemo-multihoming-issues-04.txt
Issue List:
http://www.mobilenetworks.org/nemo/draft-ietf-nemo-multihoming-issues/
- Changes from last version. Scenarios updated. Modification to section 4.
- New issue for preference settings. MNN may need to specify preferences to MR.
- Section 5 modified to identify important issues and make recommendations.
- Chan-wah went over the various issues in more detail, as on the slides.
- Attempted to take a poll whether various issues are relevant to the working group. But
there was some confusion and inability to ask all of these various questions.
- Many questions regarding where specific items should be worked on came up. There was a
heated discussion on the matrix contained in the document, and whether the work should be
assumed to happen / assigned to other working groups.
- The intent was cleared up, that it was simply an attempt to figure out what issues are
most important to solve in NEMO, and not to assign work to anyone else. However, it is
appropriate to communicate important issues for NEMO to other groups so they are aware
of what might be relevant to work on.
- Choosing default routers - shouldn't this be solved? IPv6 would be the best group, but
it is closing down.
Purpose: Get WG consensus on the recommendations regarding issues
to be solved in which respective WG.
4 NEMO Routing Optimization
4a Status of the NEMO RO Problem Statement draft .................................. 10mins
Masafumi Watari
http://www.ietf.org/internet-drafts/draft-ietf-nemo-ro-problem-statement-01.txt
- Several reviews received
- Text added to clarify sub-optimal routing effects on TCP
- "Deadlock" changed to "stalemate", and questions about "sub-optimal", "mult-angular",
"pinball" routing, etc.
- Questions about what are problems, vs. efficiency issues
- Next version will be published with the latest suggestions, and WG last call will happen.
4b 1st Presentation of the NEMO RO Solution Space Analysis draft .................. 20mins
ChanWah Ng
http://www.ietf.org/internet-drafts/draft-ietf-nemo-ro-space-analysis-01.txt
- Chan-wah went over the scenarios, as shown in the slides.
- RO requires changes in the CN (at least in MIP). Consider coordinating new work on RO
to support MIP and NEMO. Only one set of changes in CN would be required.
- Agreement that the draft meets the expectation of the working group.
- Comment that things are getting too complicated in describing a big problem -- keep it
smaller to be more solvable. Would be nice to have a set of requirements in the draft.
- Might want to add route optimization that deals with firewalls and proxy servers, as in
corporate networks.
5 NEMO v4 and NEMO v6
5a Status of the Mip6trans DT (presentation in the MIP6 WG) ....................... 05mins
Vijay Deverapalli
http://www.ietf.org/internet-drafts/draft-ietf-mip6-nemo-v4traversal-00.txt
- Update / FYI on design team work. The technical update in more detail happened in the
MIP6 working group, the following day.
- Q: anything to force NAT traversal? A: We are still discussing that.
5b IPv4 Mobile Host/Network support for NEMO Basic Support Protocol ............... 10mins
Keiichi Shima
http://www.ietf.org/internet-drafts/draft-shima-nemo-v4prefix-01
Purpose: about some detailed procedures of supporting IPv4 host/net
which is not currently dealt with in
draft-ietf-mip6-nemo-v4traversal
- Described the shortcomings of the current v4traversal draft, and how his contribution
will fill in these missing pieces.
- WG polled on whether to merge this work with design team's work; answer was yes.
5c NEMO Basic Support and IPv4 .................................................... 10mins
Alex Petrescu & Kent Leung
http://www.ietf.org/internet-drafts/draft-leung-nemov4-base-00.txt
- Alexandru presented details on the draft that has been submitted. This draft is based on
the protocol Cisco developed and has been using, with some new features added.
It is for IPv4-only networks
- Discussion on how this should be handled by the NEMO working group
- Decided to allow it to proceed as informational WG document, and not spend time on getting
it through the standards-track process.
- Distinction was presented, where items (5a) and (5b) above are for networks that want to
transport v4 traffic over v6 networks, or v6 traffic in v4 networks. (5c) is for networks
that are v4-only, and don't have any plans to upgrade to v6, so they need Mobile IPv4-
based Network Mobility support.
6 NEMO WG Status and Charter ..................................................... 15mins
Chairs
- Most of the existing charter items are done or almost done.
- Question as to where the working group should head next?
- Presentation of some possible topics
- Key is to focus on issues that are actually relevant to deployment, and solve an immediate
problem. Some of the multihoming and route optimization topics don't meet this criterion.
- Operational issues, combined with finishing technical work leading from current tasks,
will be key to producing useable documents.
- Home Agent distribution important to AKEA (?) Aeronautical group, which had a meeting
yesterday in Montreal.
- Comment from AD: There are additional filters that should be used before chartering:
- Are the items well-defined?
- Are there existing proposals in this area that could be a basis of work?
- Are people willing to work on them?
It would be really interesting if people have thoughts on how these things should be
prioritized. We're not going to charter 2-3 years out.
7 Conclusion / Wrap Up ........................................................... 05mins
Chairs
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