Hi Richard,
Master Server, coreOS (Linux version 4.9.24):
Intel 82579LM running the e1000e driver version 3.2.6-k (coreOS
Slave Servers:
Fedora (Linux version 4.2.6)
Intel i217-LM (rev 04) running the e1000e driver version 3.4.0.2 (latest)
Ubuntu (Linux version 4.13.0)
Intel i218-LM (rev 05) running the e1000e driver version 3.2.6-k and later
version 3.4.0.2 (latest)
When using the Ubuntu machine as te master server, the exact same thing happens
with roughly exactly the same output values ending up at around 70.000+ seconds
offset. The exact same thing happens when using the Fedora machine as the
master server.
The Ubuntu machine had been used before in a network where it acted as the PTP
Grandmaster for three months without any problem. I’ve done a clean install and
adopted the machine into this new network as a slave server and it continuously
gets the 70.000+ second offset. I can not find where the problem could be..
Jord
On 8 Jun 2018, at 16:32, Richard Cochran
<richardcoch...@gmail.com<mailto:richardcoch...@gmail.com>> wrote:
On Fri, Jun 08, 2018 at 02:16:42PM +0000, Jord Pool wrote:
Hi Richard,
The grandmaster server is using a Intel 82579LM Gigabit Network Connection
interface. The command for running the grandmaster is ptp4l -i enp0s25 -m -q -4
-H while it’s phc2sys command is phc2sys -s enp0s25 -c CLOCK_REALTIME -m -q -w.
The slave server(s) are both using Intel’s I217-LM (rev 04) Ethernet
Connections. Both slave severs behave the same in the sense of having a very
large offset. The ptp4l command is ptp4l -i eno1 -q -m -4 -H while it’s phc2sys
command is phc2sys -s eno1 -c CLOCK_REALTIME -m -q -w.
I have already tried a scenario in which I completely shut down the master node
and let one of the other two slave servers be the master server, even then the
slave server behaves the same regarding to the extremely high offset values.
Sounds like a HW problem.
Please resend this message, keeping the mailing list on CC. That way,
the Intel people will see it.
Also, include the kernel, driver, and distro versions. IIRC, the i217
has some known issues.
Thanks,
Richard
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