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Re: [rtcweb] RTCWEB Data Channel: Usage of PPID for protocol multiplexing

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 06 February 2014 20:35 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Michael Tuexen <Michael.Tuexen@lurchi.franken.de>
Thread-Topic: [rtcweb] RTCWEB Data Channel: Usage of PPID for protocol multiplexing
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Date: Thu, 06 Feb 2014 20:35:13 +0000
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] RTCWEB Data Channel: Usage of PPID for protocol multiplexing
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Hi,

>>>> I hope that if values are retained simply for backward compatibility they are explicitly marked as deprecated.
>>> My plan was just not to defined what they are used for...
>>
>> I would like to have some explanation text. Having registered values without any kind of explanation is not a good approach, in my opinion.
> The reason why I registered them is that they are used by Firefox and there was
> the possibility that the PPID based fragmentation and reassembly got
> standardised. I wanted to avoid the case that Firefox uses some values
> and other protocols register these values. That would have been pretty
> bad. Since they are a very cheap resource, I just went ahead and "saved"
> the values.

That is a all good. But, when people wonder 5 years from now, I don't want them to have to look for this e-mail in oder to get an explanation :)

Regards,

Christer

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