Re: Last Call comment on dmm requirements

Hello Behcet, All,

I think that almost all current DMM approaches that are based on MIPv6 or PMIPv6 require a new source address selection (SAS) mechanism, even the PMIPv6-based ones.

Yes, in part of them, the MN is not required to participate in the mobility-related signaling... and those could be categorized network-based.

Well, "MN MUST not be modified. No changes on the MN behavior can be allowed" is a very strict constraint that, as I believe, blocks all current DMM proposals.

Best regards,
Hassan


From: [email protected] [mailto:[email protected]] On Behalf Of Behcet Sarikaya
Sent: Monday, July 01, 2013 6:49 PM
To: Peter McCann
Cc: [email protected]
Subject: Re: [DMM] Last Call comment on dmm requirements


On Mon, Jul 1, 2013 at 11:02 AM, Peter McCann <[email protected]<mailto:[email protected]>> wrote:
This is not the netlmm working group.  Client modifications are very
much in scope.

Who said so?

The chair is not saying it.

I would stay away from making big statements.

I think that mobile nodes will at least need to be enhanced with more
flexibility about the way they handle assigned addresses.  The scope
of mobility for a given address may be limited or it may cost resources
to extend the scope too far with network-based means.  The MN must be
allowed to monitor its applications' use of IP addresses and release
those addresses that are no longer used, and get a new IP address for
new application connections.  This does not necessarily involve a new
protocol for the MN but is a modification of its usual behavior.


Then let's not call such a protocol network-based :-).


-Pete


Behcet Sarikaya wrote:
> Hi Danny,
>
>
>
> On Sun, Jun 30, 2013 at 4:22 AM, Moses, Danny <[email protected]<mailto:[email protected]>>
> wrote:
>
>
>       Hi,
>
>
>
>       I am sorry by this requirement sounds to me too generic and limiting.
> What functionality must not be modified? Why?
>
>       I am assuming that the motivation might be related to backwards
> compatibility.
>
>
> No. It is related to the protocol being network based. It does not
> make sense to get MN's help in such a protocol, because otherwise it
> is no longer network based.
>
> Network based protocols with MN modification blur the difference
> between client based and network based protocols.
>
> So everything becomes client based.
>
>
>
>       If this is the case, it is already addressed. Furthermore, I do not
> see a reason why not to enable modifications that may enhance
> performance or improve user experience as long as they are optional
> (hence do not violate the backwards compatibility requirement).
>
>
>
>       Regards,
>
>                       /Danny
>
>
>
>       From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of
> Behcet Sarikaya
>       Sent: Saturday, June 29, 2013 00:35
>       To: [email protected]<mailto:[email protected]>
>       Subject: [DMM] Last Call comment on dmm requirements
>
>
>
>       Add this requirement:
>
>       R. XX. In network based dmm solutions, the mobile node MUST not be
> modified. No changes on the mobile node behavior can be allowed.
>
>
>       Regards,
>
>       Behcet
>
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