Re: [MMUSIC] Partial Offer/Partial Answer draft - MIME type value

[Emil Ivov <[e-mail]>]

One more thought:

Please understand that trickle ICE is NOT a session modification. Please
try to isolate the SDP syntax that it uses from general O/A. It is not part
of it.

Think of it as JSON if that would make thinks easier.

Emil

--sent from my mobile
On 20 Oct 2013 22:18, "Emil Ivov" <[e-mail]> wrote:

> Christer, "I tried to explain" to you that what you are saying has been
> addressed and cannot happen. If you believe that there is a specific
> situation that is still possible and is a problem, then please describe
> that rather than continuing to suggest that things don't work without any
> valid arguments whatsoever.
>
> --sent from my mobile
> On 20 Oct 2013 21:50, "Christer Holmberg" <[e-mail]>
> wrote:
>
>>
>> Hi,
>>
>> >> Example:
>> >>
>> >> 1. Alice sends an SDP Offer to Bob.
>> >>
>> >> 2. Bob sends the SDP Answer to Alice, with candidates A, B and C.
>> >>
>> >> 3. After that, Bob sends, using trickle ICE, candidates D and E to
>> Alice.
>> >>
>> >> If Alice receives the SDP Answer first, and then the trickle ICE
>> request, she will assume that Bob first provided candidates A, B and C (in
>> the SDP Answer), and then added D and E (in the trickle ICE request).
>> >>
>> >> If Alice receives the trickle ICE request first, and then the SDP
>> Answer
>> >
>> > Don't do that then.
>> >
>> > It's been pretty clear from the start that any session *modification*
>> mechanism that does not also contain the full session state completely
>> falls apart in the face of unordered delivery. This is a fundamental
>> information problem, and you aren't going to write rules that somehow cause
>> it not to be true.
>> >
>> > We haven't yet tackled how to send trickle ICE in SIP, much less
>> partial offers and partial answers. When we do, the only way it's going to
>> have any chance of working at all is by requiring ordered delivery.
>>
>> I totally agree, and my opinion (which I tried to explain to Emil) is
>> that it applies also to candidates.
>>
>> Regards,
>>
>> Christer
>>
>