Re: [rtcweb] Meaning of SHOULD support/use interleaving

[Christer Holmberg <[e-mail]>]

Hi,

>> Within the CLUE WG, we had a discussion regarding the following statement in section 6.1 of draft-ietf-rtcweb-data-channel-12.txt:
>>  
>> "The support for message interleaving as defined in
>>                 [I-D.ietf-tsvwg-sctp-ndata] SHOULD be used."
>>  
>> First, it is a little unclear what "the support SHOULD be used" means.
>
> My understanding is that SCTP implementations supporting the extension will use it.
> This is negotiated during the setup of the SCTP association.

If it's done on SCTP level, why do we need to talk about it in the data channel draft? 

Is there a reason why it is important to use it for data channels? If so, does it apply to data channels in general? 

Regards,

Christer



Whether messages are interleaved or not depends on the stream scheduler. This is a sender side only decision. The receiver has to deal with it.
It is not a MUST, since there are implementations now in use which don't support the extension.

Best regards
Michael
>  
> Second, does it mean that any data channel protocol (e.g CLUE) SHOULD use interleaving, even if the characteristics of the protocol wouldn't require it?
>  
> Regards,
>  
> Christer
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