The algorithm is not all that trivial. Look for "propagation delay" and "roundtrip delay" in:
http://www.eecis.udel.edu/~mills/database/reports/ntp4/ntp4.pdf At 09:40 AM 5/19/2007, Eric Bielefeld wrote: >I have a question that I've never seen answered. With all the >discussions of sysplex timers and now SNTP lately, I don't understand >one thing about SNTP. When you go out on the internet to a trusted >time source, how do you account for the time between the time source >getting the request, and the correct time coming back to your machine? >I know there is latency there. Depending on traffic, the time over >the network can vary. How is that accounted for in setting the exact >time? ================================================== Art Celestini Celestini Development Services Phone: 201-670-1674 Wyckoff, NJ ============= http://celestini.com ============= Mail sent to the "From" address used in this post will be rejected by our server. Please send off- list email to: ibmmain<at-sign>celestini<dot>com. ================================================== ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
