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Re: [rtcweb] Sending of zero-length messages over data channels

Justin Uberti <juberti@google.com> Wed, 23 July 2014 13:08 UTC

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From: Justin Uberti <juberti@google.com>
Date: Wed, 23 Jul 2014 09:07:53 -0400
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To: Ted Hardie <ted.ietf@gmail.com>
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Subject: Re: [rtcweb] Sending of zero-length messages over data channels
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Since we have promised drop-in compatibility with WebSockets, I think we
ought to do this, and the resulting text change here should be small enough
that we could update the doc without a long re-review.

It would be unfortunate to have to have an errata section on a draft that
isn't even a RFC yet.


On Wed, Jul 23, 2014 at 8:55 AM, Ted Hardie <ted.ietf@gmail.com> wrote:

> On Tue, Jul 22, 2014 at 11:58 PM, Justin Uberti <juberti@google.com>
> wrote:
>
>> I
>> Since we can't send a zero-length SCTP message, I propose we add a
>> PPID_EMPTY value or something similar to indicate a message with empty
>> content.
>>
>>
> ​Howdy,
>
> The keepalive problem seems to be pretty amenable to any message, whether
> of zero length, single byte or something else.  Is the convergence with
> websockets on zero length important enough to re-open the drafts we just
> sent to the ADs?
>
> Ted
>

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