Hello,
My network is a LS1021ATSN platform with 2 boards. 802.1AS (gPTP) is the
standard used.
When I run the ptp4l instruction in both the LS1021ATSN platform and the
boards...
ptp4l -i eth0 -f gPTP.cfg --tx_timestamp_timeout 20 (for example)
My questions are:
Does gPTP.cfg overwrite the configuration of linuxptp.cfg (for
LS1021ATSN) or default.cfg (for linuxptp of the boards)? Or parameters
of gPTP are taken into account regardless linuxptp.cfg (for LS1021ATSN)
or default.cfg (for linuxptp of the boards)?
I ask this because I noticed that linuxptp.cfg (for LS1021ATSN) and
default.cfg (for linuxptp of the boards) and event
linuxptp-system-clock.cfg (for LS1021ATSN) contain two parameters called
"step_threshold" and "first_step_threshold". Correct me if I am wrong,
but these parameters allow jumps in the clock if it is over its value.
What I want is no jumps. Just that the frequency of the clock changes.
I think that the best configuration for that is "step_threshold" by
default (0.0), always changing the frequency, and the
"first_step_threshold" by default, just jump over 20us on the first
update. Correct me if I am wrong.
Anyway, do you recommend me to change those parameters or there are more
parameters under consideration?
Remember, I do not want strange jumps in the middle of the synchronization.
Kind regards,
Diego
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