On Mon, Aug 01, 2022 at 07:03:31PM +0900, Minseok Choi wrote:
> Hello,
> 
> My system configuration has 7 computers and the NIC installed on each 
> computer supports IEEE-1588.
> And each computer is connected by an general  unmanaged 10GbE L2 switch.
> I want to use one computer as master and the others as slaves.
> I wouldl like to know if I can use ptp4l with a option of '-2'(IEEE 802.3 
> network transport) under my environment.      Or, is it better to use a 
> option '-4'( UDP transport) because my switch doesn't support 1588?          
> Here is the configuration of the options I think.           ptp4l -A -4 -i 
> eth0           ptp4l -A -2 -i eth0
> 
> Is there anything I should consider?

There should be no difference between -2 and -4 in your setup.
I would just use the default of -4.

HTH,
Richard


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