Adam,

Thanks for this initiative. One comment on the discussion below. 

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
> On Behalf Of Adam Roach
> Sent: 21 November 2008 04:12
> To: Theo Zourzouvillys
> Cc: [email protected]
> Subject: Re: [BLISS] [Fwd: I-D 
> Action:draft-roach-sip-http-subscribe-00.txt]
> 
> Thanks for your comments! A few responses inline.
> 
> On 11/20/08 7:03 PM, Theo Zourzouvillys wrote:
> >
> > It would be good to explicitly mention that you could also 
> use a <link
> > rel="monitor"/> element within <head> of an (X)HTML document, and
> > <atom:link rel="monitor"/> within an atom entry element, too.
> >   
> 
> Very interesting proposals. Admittedly, for the use cases SIP is most 
> interested in, the results are not typically HTML, but the idea of 
> communicating these in the body may have merit. I'm curious 
> about which 
> use cases you have in mind -- do you imagine that there will be 
> circumstances under which the HTTP server will have the ability to 
> notify other nodes of changes, but not have the ability to include a 
> Link: header?
> 
> I certainly want to accommodate all reasonable use cases; however, 
> unless it enables use cases that would otherwise be impossible, I'm a 
> bit concerned that having more than one way to get this 
> information will 
> lead to either increased implementation complexity (client 
> will have to 
> check both the headers and the body), or decreased interoperability 
> (clients checking only the headers and not the body will fail 
> to locate 
> body-contained URIs).
> 
> > One thing i have been thinking about is monitoring multiple HTTP
> > resources on the same (logical) server.  In a number of places this
> > mechanism is useful, a number of subscriptions to the same server
> > would be common.  It would be nice if there was a way of 
> being able to
> > collect a number of HTTP URI's and monitoring them all in one
> > subscribe, assuming they are all on the same server (Which could be
> > calculated somehow).  My initial thoughts were along the line of
> > separating the SIP URI for monitoring and a document 
> identifier - then
> > allowing the SUBSCRIBE to contain the list of document identifiers
> > that you want monitoring (perhaps via an XML body).
> >   
> 
> I think you achieve approximately the same effect by applying 
> RFC 5367 
> to the event package described in the draft. There is a minor bit of 
> bootstrapping regarding the URI to send the RFC 5367 request 
> to, and the 
> draft should probably address this.
[JRE] RFC 5367 presumably has the advantage that the client doesn't need
to know whether the different resources are indeed on the same (logical
or physical) server.

John


_______________________________________________
BLISS mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/bliss

Reply via email to