Re: AVB Backend and MIDI question

ps:
a different clock domain requires a dedicated GM. 1588 and 802.1AS are seperate clock domains.

Am 24. Juni 2019 16:13:05 MESZ schrieb Chris Caudle <[email protected]>:
>On Mon, June 24, 2019 6:46 am, Christoph Kuhr wrote:
>> What is the need for a specific GM if you AVB switch is down?
>> Thus, one of the AVB switches involved should be the GM. The
>"core-most"
>> switch in particular.
>>
>> Or  can someone think of a scenario, where this does not make sense?
>
>If you have a higher quality device (for example a network master clock
>connected to GPS disciplined oscillator for high stability).  In that
>case
>the device should advertise a higher quality and should be selected as
>master clock in any case.
>One other case which comes to mind is if you want a multi-protocol
>device
>to be master for a mixed system, so a single device providing
>synchronized
>802.1AS for AVB devices, and layer 3 1588 messages for layer 3 devices.
>Definitely starts getting into specialized cases, and you should be
>able
>to set the clock quality field on a specialized clock source like that
>so
>that it always wins the best master clock vote.
>
>-- 
>Chris Caudle
>
>
>
>
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