On Tue, Jan 09, 2018 at 05:21:39PM +0100, Miroslav Lichvar wrote: > > I think I said that this works when N==GM. > > Hm, does that change anything? If the delay of event messages going > from GM/N to S is larger than the delay of messages going from S to > GM/N, the clock of S will be running behind GM. The measurements of S > done by the GM/N will have the opposite error.
Yes, you are right, of course. I wasn't thinking. The Meinberg doc has this statement: One big advantage of this mechanism is, that the communicated offset and delay from the monitored device can be compared to the measured offset and delay values and - assumed that the monitoring system is perfectly synchronized - asymmetries can be detected. So assuming the asymmetry on the monitor's path is known, then you can measure a constant offset on the normal GM path. Thanks, Richard ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
