Most of the good data centers I’ve used either offer a connection to a stratum 1 server or are more than happy to put a antenna on the roof. Many offer microwave as a third redundant circuit path, which requires an antenna. All for a price, of course.
When I worked for an ILEC, many moons ago, we had two and a half floors at 60 Hudson St. Our stratum 1 antenna was literally glued to a window. Next to a 10GHz dish. :) My hotel in Toronto two weeks ago overlooked a building that was clearly someone’s data center, based on the 6 generators, massive AC, numerous microwave links, and yes, GPS bullet antennas, covering the roof. Bob > On Jun 21, 2019, at 22:01, Sanjeev Gupta <[email protected]> wrote: > > Bob, > > The hardware is cheap. The software is free. The skills to deploy are > widely available. But... > > A cable run from your rack in the middle of the datacenter, through to the > roof, is either impossible or thousands of dollars and weeks of planning. > > Data centers can run wires within the building for exorbitant costs, asking > them to run one to the exterior is, well, impossible. > > -- > Sanjeev Gupta > +65 98551208 http://www.linkedin.com/in/ghane > > >> On Sat, Jun 22, 2019 at 6:06 AM Bob kb8tq <[email protected]> wrote: >> >> Hi >> >> Given the relatively low cost of a GPS based “Stratum 1” NTP, it’s not >> real clear >> why (at the end of the paper) they go off and “exchange emails >> individually with the >> organizations that run stratum 1 servers, as well as negotiate permission >> to use them.” >> to source the root time for the system. I would have thought that some >> sort of combo >> of on site and off site sources would be at the “top of the tree”. >> >> Bob >> >>> On Jun 21, 2019, at 2:20 PM, Marco Davids via time-nuts < >> [email protected]> wrote: >>> >>> Opinions, anyone? >>> >>> https://blog.cloudflare.com/secure-time/amp/ >>> >>> ("Introducing time.cloudflare.com") >>> >>> -- >>> Marco >>> >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
