Re: [rtcweb] Amount of streams supported for data channels

Michael Tuexen <michael.tuexen@lurchi.franken.de> Wed, 11 April 2018 19:26 UTC

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From: Michael Tuexen <michael.tuexen@lurchi.franken.de>
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Date: Wed, 11 Apr 2018 21:26:20 +0200
Cc: Lennart Grahl <lennart.grahl@gmail.com>, RTCWeb IETF <rtcweb@ietf.org>
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To: Taylor Brandstetter <deadbeef=40google.com@dmarc.ietf.org>
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Subject: Re: [rtcweb] Amount of streams supported for data channels
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> On 11. Apr 2018, at 20:50, Taylor Brandstetter <deadbeef=40google.com@dmarc.ietf.org> wrote:
> 
> The conclusion when this was discussed at IETF 88 was "Set it to maximum and be done with it." Which sounds like MUST to me....
I think the reason for the SHOULD was that it would allow implementations with limited resources and
knowing that they don't need that number of parallel data channels can use a lower number.

Best regards
Michael
> 
> On Wed, Apr 11, 2018 at 5:08 AM, Lennart Grahl <lennart.grahl@gmail.com> wrote:
> Hi,
> 
> there's an ongoing W3C spec discussion regarding the minimum amount of
> streams that need to be supported by a WebRTC data channel
> implementation, see: https://github.com/w3c/webrtc-pc/issues/1829
> 
> draft-ietf-rtcweb-data-channel-13, section-6.2 states:
> 
>    The number of streams negotiated during SCTP association setup SHOULD
>    be 65535, which is the maximum number of streams that can be
>    negotiated during the association setup.
> 
> Is there any reason why it needs to be a SHOULD? Could we make this a MUST?
> 
> Cheers
> Lennart
> 
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