RE: [Geopriv] Message Flow

Why?

I would just create 2 contexts, one snapshot, one not. Mark the snapshot
one as the one used-for-routing, and include the second URI for updates.

I am remain unconvinced however that it actually matters if the PSAP
gets a slightly different location. Can you indicate what the
significant impact is?

Cheers
James 

> -----Original Message-----
> From: Brian Rosen [mailto:br@brianrosen.net]
> Sent: Sunday, 25 November 2007 2:00 PM
> To: Winterbottom, James; 'Hannes Tschofenig'
> Cc: geopriv@ietf.org
> Subject: RE: [Geopriv] Message Flow
> 
> But that wouldn't let the recipient get updated location, right?  So
it
> wouldn't generally be useful.  To be useful, it would have to have
both a
> snapshot and a "regular" reference, send both and mark them
appropriately.
> 
> The context draft doesn't match the syntax of -conveyance, which means
we
> have information loss from the proxy to the recipient.  That means
"mark
> them appropriately" is hard.
> 
> Brian
> 
> > -----Original Message-----
> > From: Winterbottom, James [mailto:James.Winterbottom@andrew.com]
> > Sent: Friday, November 23, 2007 11:38 PM
> > To: Brian Rosen; Hannes Tschofenig
> > Cc: geopriv@ietf.org
> > Subject: RE: [Geopriv] Message Flow
> >
> > Brian,
> >
> > Inline.
> >
> > > -----Original Message-----
> > > From: Brian Rosen [mailto:br@brianrosen.net]
> > > Sent: Saturday, 24 November 2007 11:18 AM
> > > To: 'Hannes Tschofenig'
> > > Cc: geopriv@ietf.org
> > > Subject: RE: [Geopriv] Message Flow
> > >
> > > > >> There is obviously a difference between the end host doing
the
> > job
> > > and
> > > > >> the proxy doing it. There is no difference between the two
> > > approaches.
> > > > >>
> > > > > I'm pointing out a difference between them.  In the endpoint
> > route,
> > > the
> > > > PSAP
> > > > > knows the location used for routing.  In the proxy case, it
> > doesn't.
> > > > >
> > > >
> > > > Well. That's not entirely correct if you consider the context
draft
> > in
> > > > addition. It allows you to indicate to what the reference
points.
> > > >
http://tools.ietf.org/wg/geopriv/draft-winterbottom-geopriv-held-
> > > context-
> > > > 01.txt
> > > No, that is not sufficient.  The PSAP (or any location recipient)
> > can't do
> > > anything that would get it the location the proxy got.
> > >
> > [AJW] This is not true. The proxy can request a snapshot location
which
> > means that the reference will always point to the same location.
> >
> > >
> >
> >
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> > [mf2]
> 

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