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RE: Comments on the draft-ietf-radext-filter-04 or.. -05
> -----Original Message-----
> From: Bernard Aboba [mailto:email@example.com]
> Sent: 6. marraskuuta 2006 22:39
> To: Korhonen, Jouni /TeliaSonera Finland Oyj; firstname.lastname@example.org
> Subject: RE: Comments on the draft-ietf-radext-filter-04 or.. -05
> >Just a small note/question regarding the text stating Filter-ID and
> >NAS-Filter-Rule must not appear in the same message. I don't
> see this
> >kind of "must" restriction on Diameter side (RFC4005) so why should
> >RADIUS have it?
> Right. Diameter allows both Filter-ID and NAS-Filter-Rule
> AVPs, so adding a usage restriction within RADIUS might
> result in a Diameter -> RADIUS translation issue.
> >So e.g. in section 2 would
> >"..attributes, and SHOULD NOT appear in the same RADIUS
> packet." be better?
> There might be a case where Filter-Id and NAS-Filter-Rule
> might be included in the same packet, but then the document
> would need to explain what happens when that occurs.
> I don't think there would ever be a reason to include both
> NAS-Traffic-Rule and NAS-Filter-Rule in the same packet.
Right. I was actually only referring to Filter-ID and
> >Also it is not entirely clear to me why e.g. Filter-Id and
> >NAS-Filter-Rule must be mutually exclusive?
> The question was what the resulting filter rule set would be.
> Is the result consistent or unpredictable? If it is
> predictable, how does it work?
I didn't find anything on e.g. preferred order of applying
filters in RFC4005. I guess it makes this somewhat more complicated.
> >This was questioned by some organizations that intend to use
> >NAS-Filter-Rule. I guess defining rule applying order would also be
> Do you have an opinion on how this should be handled?
> For example, you could say that Filter-ID would be applied
> first, then NAS-Filter-Rule.
Something like the above. We could state that Filter-ID must be applied
first and then NAS-Filter-Rule. However, I'm not sure whether this kind
of recommendation should also be reflected in Diameter as well?
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