[Linuxptp-users] Using gPTP profile on multiple devices

2018-07-30 Thread André Sadie
I am currently trying to use ptp4l with a gPTP profile with 3 devices connected to a switch. Step 1) Used default ptp4l profile, all 3 devices worked and I was able to fiddle with master selection and priority levels without any problems. Step 2) Used gPTP profile, devices B and C worked as slaves

Re: [Linuxptp-users] Using gPTP profile on multiple devices

2018-07-30 Thread Richard Cochran
On Mon, Jul 30, 2018 at 04:46:23PM +0200, André Sadie wrote: > I am currently trying to use ptp4l with a gPTP profile with 3 devices > connected to a switch. This won't work. You need to use a time aware bridge instead of a switch. Sorry, Richard

[Linuxptp-users] linuxptp frequency jitter issue

2018-07-30 Thread roger luo
Hi, when i run the OC mode for the SLAVE clock to sync the time from the master clock, at first, the sync works fine, the offset is also fine, but the offset becomes a very large value, i did some debugging and printed the ppb in kernel code api adjfreq, the ppb value is an abnormal value when the

Re: [Linuxptp-users] Using gPTP profile on multiple devices

2018-07-30 Thread André Sadie
Hey Richard, Do you mind elaborating a little more on that? The switch I am using is a time-aware AVB switch that should be able to perform P2P as far as I know. On Tue, Jul 31, 2018 at 5:11 AM, Richard Cochran wrote: > On Mon, Jul 30, 2018 at 04:46:23PM +0200, André Sadie wrote: > > I am curren