[ntp:questions] UK report on GPS vulnerabilities seems to overlook NTP

Jan Ceuleers janspam.ceuleers at skynet.be
Tue Mar 8 18:46:42 UTC 2011


On 08/03/11 19:39, unruh wrote:
> And exactly what is that difference? While ntp is perhaps too slow to
> respond to local frequency changes, how do you see the difference
> between keeping a computer's idea of local time accurate from keeping a
> telecom's idea of local time accurate?

GPS is used not only for navigation and time-of-day synchronisation, but 
also as a source of frequency signals for use by synchronous (e.g. SDH) 
or plesiosynchronous (e.g. PDH) networks.

Jan




More information about the questions mailing list