Subject: [Simple] RE: draft-ietf-simple-winfo-filter-reqs-00

From: [email-masked]
Date: Tue, 13 May 2003 19:29:57 +0300

Hi Sean,

Relevant scenarios could be:
- include only watchers who have been subscribed for less than some duration 
	- ask for the most recent watchers
	- limit how old information is delivered
- include only watchers who have been subscribed for higher than some duration
	- in case of requesting history information of watchers

3.4.x only tries to cover the useful scenarios, if the solution is generic (any kind of expression can be set up), then a generic requirement, like "The client MUST be able to indicate to the server to include in the notifications only those watchers with specific element or attribute values" could also make the job instead of 3.4.x.

Regards,
Krisztian

> -----Original Message-----
> From: ext Sean Olson [mailto:[email-masked]]
> Sent: Monday, May 12, 2003 8:11 PM
> To: Kiss Krisztian (NRC/Tampere); Leppanen Eva-Maria (NET/Tampere);
> Khartabil Hisham (NMP/Helsinki)
> Cc: [email-masked]
> Subject: draft-ietf-simple-winfo-filter-reqs-00
> 
> 
> I question the usefulness of the following
> requirement:
> 
> 3.4.4 Duration of Subscription
> 
>    The client MUST be able to indicate to 
>    the server to include only those watchers
>    in the notifications which are subscribed
>    for a duration higher than (less than) a 
>    specific amount of seconds.
> 
> This seems like a mechanism with a different 
> requirement lurking inside. Are you looking for
> watchers that are near expiration? What is the
> scenario you have in mind?
> 
> /sean
> 
> 
> 
> 
> 
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