[Linuxptp-users] gPTP, pDelayResp and pDelayRespFollowUp correction fields

[Kat Y <aps...@gm...>]

 Hello,

I'm using linuxptp with gPTP profile and 2 step mode. I have a transparent
switch between master and slave.
Switch adds corrections to 2S flagged messages - it adds correction to SYNC
and not FUP which is fine since corrections get summed.

I can see that both pDelayResp and pDelayRespFollowUp get corrected though.
I think that linuxptp is adding correction to pDelayRespFollowUp message
not the switch.
Is this wrong, is it expected of linuxptp? Summed up correction will be
doubled. Should I zero one of the correction fields or divide summed up
correction by 2?

Also, can someone recommend a document (or shortly explain if it's not a
problem) on nrate and nrate calculations because I cannot seem to find
anything online?
Thank you!