On Tue, Mar 08, 2022 at 04:17:29PM +0100, Martin Pecka wrote:
> Or is there another way (except watching the master offset via pmc and
> trying to re-do the same algorithm that manages the servo state inside
> ptp4l?).
Use the NSM for more accurate monitoring:
NAME
nsm - NetSync Monitor client
SYNOPSIS
nsm [ -f config ] [ -i interface ] [ long-options ] [ command ] ...
DESCRIPTION
nsm is a program which implements a NetSync Monitor (NSM) client. NSM
is an extension to the Precision Time Protocol (PTP), which enables a
client to measure the offset of its clock against any PTP clock in the
network which supports NSM. It uses unicast messages, but unlike PTP in
the unicast mode it does not require the server to keep any state spe‐
cific to the client. It is particularly useful for monitoring.
Thanks,
Richard
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