Behcet, and all,

Maybe I can't attend next webex meeting tomorrow. So let me try to make
clear what I am thinking. Please correct me if I'm wrong to understand the
notion of the next DMM charter.

1. Forwarding path and signaling
 In fact, my proposal, stateless-uplan for vEPC (aka vEPC), to dmm is that
wherever mobility management located, existing user-plane control protocol
works fine for forwarding path management with some already proposed
extensions. The important thing is, BGP itself is not mobility management
protocol in the vEPC. The reason for this is because it enables stable
operation, maintained continuously for many advanced use cases, and most
scalable since it supports global Internet routing. But I think that BGP
does not suitable for mobility management. I understand that other people
may have their own choice, of course.

2. Enhanced mobility anchoring
 As you may know the vEPC has anycast discovery for EPC-E. It is not a
discovery mechanism actually. As the anycast address is assumed to be
informed from control-plane, which address should be chosen is a matter of
anchor selection policy or algorithm in the mobility management. So I know
that more intelligent anchor selection in the mobility management should be
considered to optimize the path. Anycast would be an operational choice
whether the informed address is assigned to single or multiple routers.

3. Mobility state exposure
Some people asked me to what entity discloses mobility info mapped into
routes. Yes, vEPC need that entity to achieve the architecture model. Now
that the draft has stated that it is a further study item. We have to study
common way to disclose mobility information regardless the type of mobility
management, which are MIP/PMIP or GTP-C whatever. It may need mobility
state exposure for not only mobile node, but also network node that the
charter has already mentioned.

I support these work items to moving forward. I've found some solutions in
the forwarding path and signaling. But AFAIK, couldn't see the solutions to
apply other two items, but it might be already there. I would like to see
solutions which are clarified into three work items and fill them. I would
be happy to contribute to make things progress.

Cheers,
--satoru

On Sat, Sep 27, 2014 at 12:14 AM, Behcet Sarikaya <sarikaya2...@gmail.com>
wrote:

> Hi Jouni,
>
> I don't see anything in the charter regarding the design teams or
> "working teams". I also mentioned this in the list and there was no
> objection.
>
> On what basis you are forming the working teams?
>
> We currently have many solution drafts and I can not see any of them
> dividing the solution as exposing mobility state, enhanced mobility
> anchoring or forwarding path and signaling.
>
> These three items were mentioned by certain people which I believe do
> not constitute the consensus in DMM. Yes the charter had those but my
> interpretation was it was for the purpose of abstracting the solution
> into some pieces. I have never interpreted them to be the requirements
> to divide the final DMM protocol like this.
>
> My question is we do that three four solution drafts and some of them
> implemented.
> What do we do with them?
>
> My advice to those colleagues wishing to lead the design teams is to
> please come up with your own solution and get into the race with
> others.
> How come they can get the hat of DT lead and produce something and get
> priority over others who worked so hard?
>
> Regards,
>
> Behcet
>
> On Fri, Sep 26, 2014 at 12:51 AM, Jouni Korhonen <jouni.nos...@gmail.com>
> wrote:
> > Folks,
> >
> > In the interim call #2 we agreed to form "working teams". We got three
> > volunteers to run up those:
> >
> > o Alper will take care of coordinating "exposing mobility state.."
> > o Anthony will take care of coordinating "enhanced mobility anchoring.."
> > o Marco will take care of coordinating "forwarding path and signaling.."
> >
> > The above gentlement will arrange calls for brainstorming that are open
> for
> > everyone to participate. The process is open - about equivalent to a
> design
> > team, you just don't need to signup for one. Just keep in mind that it is
> > good to concentrate on a limited amount of work items.
> >
> > The working teams, if they so manage, will produce the solution I-D(s).
> > These documents will be equivalent to any individual produced I-D,
> though.
> >
> > - Jouni & Dapeng
> >
> > _______________________________________________
> > dmm mailing list
> > dmm@ietf.org
> > https://www.ietf.org/mailman/listinfo/dmm
>
> _______________________________________________
> dmm mailing list
> dmm@ietf.org
> https://www.ietf.org/mailman/listinfo/dmm
>
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