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Re: [MMUSIC] actpass redux

Eric Rescorla <ekr@rtfm.com> Sat, 10 June 2017 09:35 UTC

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From: Eric Rescorla <ekr@rtfm.com>
Date: Sat, 10 Jun 2017 10:34:34 +0100
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To: Roman Shpount <roman@telurix.com>
Cc: Paul Kyzivat <paul.kyzivat@comcast.net>, "mmusic@ietf.org" <mmusic@ietf.org>
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Subject: Re: [MMUSIC] actpass redux
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On Fri, Jun 9, 2017 at 7:23 PM, Roman Shpount <roman@telurix.com> wrote:

> On Fri, Jun 9, 2017 at 2:00 PM, Paul Kyzivat <paul.kyzivat@comcast.net>
> wrote:
>
>> On 6/9/17 9:17 AM, Cullen Jennings wrote:
>>
>>>
>>> On Jun 8, 2017, at 6:49 PM, Roman Shpount <roman@telurix.com> wrote:
>>>>
>>>>   Because of this, I think for the best interop, offerer MUST specify
>>>> actpass for both initial and subsequent offers but answerer MUST be able to
>>>> handle active and passive setup roles as well.
>>>>
>>>
>>> that works for me
>>>
>>
>> I don't understand what this accomplishes. If you must be able to accept
>> anything in a received offer, then what is gained by restricting what can
>> be used in an offer?
>>
>
> This is all because of legacy interop. There are legacy end points that
> send non-actpass, so end point MUST be able to accept active and passive to
> interop with such legacy devices.
>

Those legacy endpoints are clearly noncomformant, so I'm not sure I care
about breaking them,



> There are also legacy end points that only expect actass so end point MUST
> only send actpass to interop with such devices.
>

These legacy endpoints are conformant, which is why it's important to
accommodate them

-Ekr


> _____________
> Roman Shpount
>
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