Re: [MMUSIC] Draft new version: T140-data-channel -02 - Use direction attributes on dcsa level

Gunnar Hellström <gunnar.hellstrom@omnitor.se> Wed, 04 September 2019 21:23 UTC

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From: Gunnar Hellström <gunnar.hellstrom@omnitor.se>
To: Christer Holmberg <christer.holmberg@ericsson.com>, mmusic@ietf.org
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Date: Wed, 04 Sep 2019 23:23:11 +0200
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Subject: Re: [MMUSIC] Draft new version: T140-data-channel -02 - Use direction attributes on dcsa level
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(sorry, I forgot to change topic)

Den 2019-09-04 kl. 23:20, skrev Gunnar Hellström:
>
> Hi,
>
> This is another topic for discussion:
>
> I think that session level direction attributes should work on T.140 
> data channels where no direction attribute is set on the dcsa(t140) level.
> RFC 4566bis seems to expect that. It is written as if it was defining 
> that session level attributes if specified should govern in the whole 
> session.
>
> And I think that the sdpneg-23 draft tries to say that attributes 
> defined for general session and media level use should be allowed to 
> work on DCSA level for any subprotocol without further specification 
> or registration.
>
> Regards
>
>
> Gunnar
>
>
>
>
> It should be discussed what happens if there is a direction attribute 
> on media level in the media declaration for the SCTP declaration.. 
> Probably a similar statement as for session level is needed.
>
> Den 2019-09-04 kl. 23:03, skrev Gunnar Hellström:
>>
>> Hi,
>>
>> I have created a number of pull requests to the GitHub repository for 
>> draft-holmberg-mmusic-t140-usage-data-channel-02
>>
>> Many are editorial. A few require discussion in the list.
>>
>>
>> Regards
>>
>> Gunnar
>>
>>
>> Den 2019-09-03 kl. 14:10, skrev Christer Holmberg:
>>>
>>> Hi,
>>>
>>> I have mereged the following PR:
>>>
>>> https://github.com/cdh4u/draft-datachannel-t140/pull/6
>>>
>>> …and submitted a new version (-02) of 
>>> draft-holmberg-mmusic-t140-usage-data-channel.
>>>
>>> The main changes are:
>>>
>>>   * IANA registry update for SDP attributes that can be included in
>>>     dcsa attributes
>>>   * Detailed procedures on usage of the direction attributes inside
>>>     dcsa attributes
>>>
>>> Regards,
>>>
>>> Christer
>>>
>>>
>>> _______________________________________________
>>> mmusic mailing list
>>> mmusic@ietf.org
>>> https://www.ietf.org/mailman/listinfo/mmusic
>> -- 
>> -----------------------------------------
>> Gunnar Hellström
>> Omnitor
>> gunnar.hellstrom@omnitor.se
>> +46 708 204 288
>>
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>
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-- 
-----------------------------------------
Gunnar Hellström
Omnitor
gunnar.hellstrom@omnitor.se
+46 708 204 288