Re: [Enum] Comments on draft-ietf-enum-infrastructure-enum-reqs

Hi Otmar, folks,
Me too. We were talking about ->E2U<- NAPTRs, right?
iENUM or (user) ENUM concentrates on NAPTRs using the
'E2U' DDDS application specified in RFC 3761. In effect,
it returns a universal name, not a routing ID. Routing
can and (IMHO) should be done elsewhere.

D2U/D2T/D2S NAPTR and SRV lookups as per RFC 3263 (almost
certainly in different zones) look like a much better way
to deal with any such source differentiated processing.

all the best,
   Lawrence

On 23 Nov 2006, at 16:56, Otmar Lendl wrote:
> On 2006/11/23 17:11, Dale.Worley@comcast.net wrote:
>>    From: "Pfautz, Penn L, GBLAM" <ppfautz@att.com>
>>
>>    The requirement you propose is actually much different and, while
>>    the initial (e.g., Tier 1) response may not be origin-sensitive,
>>    further processing is likely to be since A carrier may have
>>    different POIs for different interconnection partners.
>>
>> Hmmm... If that's so, you might want to add some explication of that
>> in the requirements. The current definition suggests to the naive  
>> that
>> the mapping from E.164 number to URI is offered to all comers .
>>
>> Indeed, from a technological point of view, it's a fairly complex
>> feature to allow different mappings to be delivered to requests made
>> on behalf of different originating parties.
>
> I agree with Richard here: I-ENUM should return an AoR which act
> as a "name" and does not contain source specific routing information.
>
> It may well be that further processing is done on this AoR that leads
> to different ingress points depending on the source network.
>
> That, though, is out of scope for I-ENUM and thus need not be
> mentioned in this document.
>
> /ol
> -- 
> < Otmar Lendl (lendl@nic.at) | nic.at Systems Engineer >
>
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