Re: [Linuxptp-users] Observing below issue with ptp4l running in BC mode

[ramesh t <ram...@ya...>]

hi Richard,

Using option -a will automatically time sync all the PHC devices in the system.
Is there a way to sync only those interface which are part of BC configuration (port connected to Testing Unit)??

Using -a option, will it help to solve this issue seen? Because ptp4l is going into PS_FAULTY?
Please suggest. 

regards,
Ramesh


On Thursday, January 6, 2022, 01:33:54 AM GMT+5:30, Richard Cochran <ric...@gm...> wrote: 





On Wed, Jan 05, 2022 at 07:34:07PM +0000, ramesh t wrote:

> hi,
> 
> Running ptp4l in BC mode, with clock_type set to BC and boundary_clock_jbod set to 1. Have connected one NIC port to BC/GM and another NIC port to testing unit (TU). Following is the ptp4l command.
> 
> ./ptp4l -2 -A -w -i <port connected to BC/GM> -i <port connected to TU> -f /etc/ptp4l_bc.c
> 
> In BC mode, ptp4l getting clock from BC/GM and is providing clock to testing unit.
> 
> Also running below phc2sys command:
> phc2sys -s <port to connected to BC/GM> -c CLOCK_REALTIME -w -r -n 24
> phc2sys -s <port to connected to BC/GM> -c <port connected to TU> -r -w -n 24


You should use the phc2sys automatic mode (-a) when using boundary_clock_jbod.

Thanks,
Richard