North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: NTp sources that work in a datacenter (was Re: Is latency equivalent
> >in every PoP to do measurements. In that case, the difficulty isn't in > >measuring one-way latency, it's in synchronizing the time on all the > >servers. And with fairly cheap GPS and CDMA clocks that is a lot > >easier/cheaper than it once was. a robust mesh of strat-2 chimers gives one more resilence and more accuracy than syncing off a single source. > But what GPS clock can you install in a datacenter? AFAIK, they all > require roof (or at least window) access in order to install the > antenna. (At least, all the GPS based ntp servers I've looked at do). > Is that not true of CDMA servers? some GPS, some PPS, and an atomic source here and there give great diversity and only a few need roof access. > How have others solved this issue? (Short of owning their datacenters.) Use NTP, run most systems as strat-2 --bill
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