Re: [MMUSIC] Bundle offer with different ports - where to expect media?

Emil Ivov <emcho@jitsi.org> Thu, 23 May 2013 10:38 UTC

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Message-ID: <519DF0F8.1070407@jitsi.org>
Date: Thu, 23 May 2013 13:35:36 +0300
From: Emil Ivov <emcho@jitsi.org>
Organization: Jitsi
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To: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Cc: mmusic <mmusic@ietf.org>, Christer Holmberg <christer.holmberg@ericsson.com>
Subject: Re: [MMUSIC] Bundle offer with different ports - where to expect media?
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Hey all, Paul,

One more thought on the use of the port in the first accepted line
rather than the first offered.

As is often the case, the discussion on the list is delightfully
confusing so apologies if this was already mentioned and I missed it:

On 21.05.13, 20:57, Paul Kyzivat wrote:
>> > Still, I think being consistent about the ports where one could get
>> > multiplexed data is a good thing, and it could help (humans) when
>> > analysing traffic and debugging network issues.
> Consistency is good. But isn't it just as consistent to say that the 
> first *accepted* m-line defines the bundle addr/port as it is to say 
> that the first offered m-line?

In case a bundle offer gets forked and various answers accept the bundle
but reject different m= lines, then we could end up with receiving
bundled traffic on any port. In this case consistently using the first
offered port as the one for the bundle would give us use of a single port.

I agree this is not necessarily a big deal but I thought I'd mention it
just the same.

Cheers,
Emil


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