> -----Original Message-----
> From: Maxime Lemonnier [mailto:maxime.lemonn...@gmail.com]
> Sent: Wednesday, October 03, 2018 7:24 AM
> To: Keller, Jacob E <jacob.e.kel...@intel.com>
> Cc: shouldbe q931 <shouldbeq...@gmail.com>; linuxptp-
> us...@lists.sourceforge.net
> Subject: Re: [Linuxptp-users] ptp forwarding
>
> Interesting,
>
> I just RTFM, and I'm not sure how to use it. Here's my (simplified) use case
>
> TimeServer_PTPMaster_(192.168.0.42)<-------rj45-------->LinuxPC.eth0(192.168.0.1)
>
> LinuxPC.eth1(192.168.1.1)<---------rj45--------->PTPCamera0(192.168.1.2)
>
> LinuxPC.eth2(192.168.2.1)<---------rj45--------->PTPCamera1(192.168.2.2)
>
>
> Do I start 3 ptp4l instances with the boundary_clock_jbod=1 option on each?
> Do I start 1 ptp4l instance with -i eth0 -i eth1 -i eth2? This forces me to
> software
> timestamping?
>
> Do I start 3 ptp4l instances (eth0 slave, eth1 eth2 masters) and sync them
> with 3
> phc2sys instances, e.g.,
> phc2sys -s eth0
> phc2sys -s CLOCK_REALTIME -c eth1
> phc2sys -s CLOCK_REALTIME -c eth2
>
>
If I recall correctly, you need to use boundary_clock_jbod=1 while also setting
all three interfaces, in a single invocation of ptp4l, and ofcourse they all
must report hardware timestamping capability.
I am not sure about phc2sys configuration though.
Thanks,
Jake
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