[Standards] XEP-0047 (Flow rate control for IBB)

Peter Saint-Andre stpeter at jabber.org
Thu Jul 19 14:58:23 UTC 2007


William Voorsluys wrote:
> Hello,
> 
>> > But, according to the XEP, it is not allowed to include any inner XML
>> > stanza on the <iq> of type RESULT used as ACK:
>> >
>> > <iq from='juliet at capulet.com/balcony' to='romeo at montague.net/orchard'
>> > type='result' id='ibb1'/>
>>
>> That's just an example.
>> The RFC allows zero or one child element in IQ result stanzas.
>> This would work:
>>
>> <iq from='juliet at capulet.com/balcony' to='romeo at montague.net/orchard'
>>     type='result' id='ibb1'>
>>   <data xmlns='http://jabber.org/protocol/ibb' sid='mySID' seq='0'>
>> </iq>
> 
> Well, I don't think that XEP-0047 would allow such a response. It is
> not clear in the XEP that a client should reply including a <data>
> element preserving 'sid' and 'seq'. So, most clients wouldn't do that,
> preventing our implementation to interoperate.
> Am I right?

AFAIK, few clients have implemented IBB. We could definitely update the
spec to reflect this kind of acking, which makes a lot of sense IMHO.

Justin, what say you?

/psa

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