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Re: CAP: Definition of CAR-MIN
Doug Royer wrote:
> Bernard Desruisseaux wrote:
> > Then, it's my turn to ask:
> > Explain how a CUA can know if a CS can only handle
> > the CAP predefined VCARs?
> (1) The CS advertises CAR-MIN which tells the CUA that
> the CS can not parse VCARs.
This is not true. Else, why would CU waste their valuable
time modifying the VCARs with predefined CARID?
> (2) The CUA looks at 'DEFAULT-VCARS' to determine what
> VCARs the CS knows, which is going to be at least
> the predefined CAP VCARs.
DEFAULT-VCARS is not meant to advertize the VCARs the
CS knows, but the VCAR that MUST be copied in newly
created VAGENDA. That's different.
> (3) The predefined VCARs can only be queried by CARID.
a) Again, this was never mentioned on the list.
b) This is of no help. The question was: "how a CUA can know
if a CS can only handle the CAP predefined VCARs?"
c) Why shouldn't I be able to query the predefined
VCARs by other properties? There is no such
restriction for other components, and there
are no reasons to handle VCAR differently.
> > > > If the CS wants/needs to support more than the four (4)
> > > > VCARs with predefined CARIDs it simply has to advertize
> > > > itself as a CAR-FULL-1 CS.
> > >
> > > No. Not if the CS can't parse VCARS.
> > Irrelevant. A CAR-FULL-1 CS could hard code all
> > its VCARs and tag them as "decreed", as long as
> > one of the VCAR denies all users to write, modify
> > and delete VCARs.
> Any CS that can not PARSE VCARs better advertise CAR-MIN.
> And it better place the VCARs that it knows in DEFAULT-VCARS.
Not necessarily (see above).
> And it better reply to the predefined VCARs by CARID when queried.
Yes. But not only "by CARID".
> If a CS can PARSE VCARs it can advertise CAR-FULL-1, and
> it is still free to mark them read only (decreed).
Yes, it CAN (i.e., this is not a MUST).
Bernard Desruisseaux mailto:bernard@xxxxxxxxxxx
Research & Development Tel. : +1 514 733-8500 x4213
Steltor Fax : +1 514 733-8878