17 April Mobility Conf call notes

Roy, Radhika R, ALARC rrroy at ATT.COM
Tue Apr 18 13:03:45 EDT 2000


Hi, Ed and All:

In fact, I have the same idea like Ed when I explained yesterday that "home"
administrative domain does not mean much unless home/visiting/target/visited
GK/zone/network address (network point of attachment) information is there.

I guess that, like AT&T, Motorola has also contributions in supporting this
concept.

I also sent email yesterday in response to Steve's email explaining the
benefits. I also sent email to Jaakko explaining the things again in
response.

I hope that these terms will be accepted and will be shown as Paul Guram
explained in his mail by the editor.

Best regards,
Radhika R. Roy
AT&T

> -----Original Message-----
> From: Edgar Martinez [1] [SMTP:martinze at CIG.MOT.COM]
> Sent: Tuesday, April 18, 2000 11:39 AM
> To:   ITU-SG16 at MAILBAG.INTEL.COM
> Subject:      Re: 17 April Mobility Conf call notes
>
> Hi All,
>
> Administrative Domain I think is a Service provider's
> system. The word HOME should be left out because
> the Administrative Domain can apply anywhere. Therefore,
> one could say the "Administrative Domain" of  the Serving (network or zone
> or
> GK),
> or  the "Administrative Domain" of the Visited (network or zone or GK), or
> the "Administrative Domain" of the Transit (network or zone or GK), etc,.
> The Administrative Domain has no functions it can apply for fixed
> or mobile networks, nor does it need any protocol to support it.
>
> On the other Hand!!!
>
> As Paul pointed out the VLF,HLF and AuF are boxes
> with specific functions. In this case we can define
> the Home functions, Authorization functions
> Visited functions for each box. We can also
> have Home or Visited GK boxes with specific
> functions.
>
> From Paul's meeting notes:
>
> "The editor, will also consider to add some text to explain
> the boxes VLF,HLF and AuF, if these are also included
> in the new version of Annex H."
>
>
>
> Jaakko Sundquist wrote:
>
> > Hi Radhika & Laurent,
> >
> > See my comments embedded...
> >
> > >
> > > The contributions and explanations have been provided why
> > > "Home" is needed
> > > in the same context of "Home" domain.
> >
> > The Home Administrative Domain came about because it seemed a good idea
> to
> > bind the subscription of a User to some administrative entity (such as
> an
> > operator). At the same time we have defined the HLF as the only place in
> > which location information about the user can always be found (albeit
> > clearer definitions about this information are still needed). Thus the
> > domain containing the HLF of the user was in effect defined as the Home
> > Administrative Domain of the user.
> >
> > >
> > > If we do not accept the "home" for GK, zone and home network
> > > address, we
> > > have serious problems to accept the word "home" in any place
> > > of mobility
> > > whether it is "home" Adm domain.
> >
> > I do not follow your reasoning above at all. Concidering a home GK or
> zone,
> > I can understand that they may be needed if the service execution is
> done in
> > the "home" of the user, i.e. all calls for a user would be controlled by
> the
> > same GK, namely the home GK of the user. For service execution in the
> > Visited Administrative Domain, I do not see any reason, why the concept
> of a
> > home GK would be needed. Furthermore, if a concept is not definitely
> needed,
> > I will not want to define it. I also feel we need to examine and define
> the
> > "service execution in the home environment" or "virtual home
> environment"
> > model better, so that everyone understands, what it is all about.
> > As for the need for a home Network Point of Attachment, I am waiting for
> > your contribution that clarifies, why we would need it.
> >
> > >
> > > I have very a serious objection with your idea that the word
> > > home should not
> > > be used. If it is so, let us NOT use "home" anywhere in the document.
> >
> > The point is that so far, if I understand Laurent correctly, neither he
> or I
> > have accepted the concepts of home GK or home Network Point of
> Attachment.
> > Those are the terms that we would not like to see in the picture.
> >
> > >
> > > It is an OPTION to use "home". If anyone does NOT like it,
> > > they may NOT use
> > > it. Time and again, it has been shown why it is needed.
> > >
> > > It will be very difficult to make any meaningful progress
> > > unless we are in
> > > consistent in defining term terms.
> > >
> > > I like to see contributions explaining why "Home" should NOT be used.
> > >
> >
> > I do not want to see contributions telling what terms SHOULD NOT be
> defined,
> > I want to see contributions telling why some terms SHOULD be defined. So
> far
> > I haven't seen such contributions on home NPoA and I'm still not sure
> about
> > the home GK either.
> >
> > -Jaakko
>
> --
> Edgar Martinez - Principal Staff Engineer
> Email mailto:martinze at cig.mot.com
> FAX 1-847-632-3145 - - Voice 1-847-632-5278
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