I have continued to experiment with this and have been unable to figure out how to implement an 802.1AS automotive master and 1588 slave in a single configuration file. Any additional guidance would be appreciated.
On Mon, Aug 14, 2023 at 2:27 PM John Koch <jk...@outrider.ai> wrote: > I apologize for my ignorance but I'm not sure how to implement that all in > a single configuration file. I currently have two very generic > configuration files. The first is used on the primary interface as the 1588 > slave: > > *[global]* > > *slaveOnly 1* > > *time_stamping hardware* > > *step_threshold 1.0* > > *delay_mechanism Auto* > > *network_transport UDPv4* > > > *[enp11s0]* > > The second configuration file is the default automotive-master.cfg > profile: > https://github.com/richardcochran/linuxptp/blob/master/configs/automotive-master.cfg > > I run the primary configuration file like this: ptp4l -f <path_to_file> > For the other interfaces I run: *ptp4l -f /etc/automotive-master.cfg -i > <interface_name>* > I can add --boundary_clock_jbod to my automotive-master.cfg file and add > the automotive interfaces and a boundary clock is properly formed between > them. However, I don't know how to create a configuration file of > dissimilar PTP instances on different interfaces. I will keep investigating > and experimenting while I await a reply. > > On Fri, Aug 11, 2023 at 9:24 PM Richard Cochran <richardcoch...@gmail.com> > wrote: > >> On Fri, Aug 11, 2023 at 12:32:24PM -0600, John Koch via Linuxptp-users >> wrote: >> > I was wondering what the best way to configure ptp4l and phc2sys in the >> > following configuration would be. >> > >> > There is a 1588 IPv4 PTP master present on the network. My computer has >> > several NICs which have PTP hardware support, one of them is plugged >> into >> > the network with the 1588 IPv4 master. I also have multiple devices >> which >> > are 802.1AS automotive slaves that I want to synchronize with the rest >> of >> > the devices on the 1588 network. Currently I have connected each of the >> > 802.1AS automotive slaves to an individual NIC on my computer and run an >> > instance of ptp4l and phc2sys for each slave. >> > >> > Is there a better way of doing this? If so could someone provide some >> > guidance? >> >> You can run: >> >> - one ptp4l instance as a Boundary Clock with 1588 on the slave port >> and gPTP on the master ports (using a configuration file) >> >> - one phc2sys in "automatic" (-a) mode with --boundary_clock_jbod >> >> That will make the gPTP clients synchronize to the 1588 IPv4 master. >> >> HTH, >> Richard >> >>
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