> There's no requirement for a grandmaster to be hooked up to GPS. It may just > as well work > off its own oscillator. A grandmaster is the ultimate source of time in a PTP > network. It is > not relevant what its time source is.
That is correct. It can use any kind of reference clock. GPS is the reference most of use would use but some people might have IRIG or some other source. The OP's question was "how do I get grand master data" and the answer should have beed stated as "From a computer you own that runs PTPd and has a reference clock of some kind." Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.