[Linuxptp-users] Received packets without timestamp

[Tino Mettler]

Hi,

I get the following messages a few times per day:

port 1: received DELAY_REQ without timestamp
port 1: received SYNC without timestamp

According to the source, this means that the kernel driver did not
supply a timestamp from the PHC for that packets. The NIC is an Intel
I219-LM. I did not find anything useful in Google regarding this. Is
there anything I can do to avoid this?

Regards,
Tino

[Keller, Jacob E]

-----Original Message-----
Sent: Tuesday, March 07, 2017 1:24 AM
Subject: [Linuxptp-users] Received packets without timestamp
Hi,
port 1: received DELAY_REQ without timestamp
port 1: received SYNC without timestamp
According to the source, this means that the kernel driver did not
supply a timestamp from the PHC for that packets. The NIC is an Intel
I219-LM. I did not find anything useful in Google regarding this. Is
there anything I can do to avoid this?
Regards,
Tino

I'm not sure. I've seen this message a few times and haven't been able to reproduce it reliably enough. It shouldn't impact the functionality, and as long as its only intermittent drops it's not a big deal.

Thanks,
Jake

[Richard Cochran]

Post by Keller, Jacob E
I'm not sure. I've seen this message a few times and haven't been able to reproduce it reliably enough. It shouldn't impact the functionality, and as long as its only intermittent drops it's not a big deal.

I have also seen this occasionally on the i210. I *think* the i210
should never drop a time stamp, in theory, but there obviously is some
issue. It is rare, and so it hasn't bothered me. Other HW drop time
stamps by design!

Thanks,
Richard