"Marcelo Pimenta" <marcelopiment...@gmail.com> wrote in message news:aanlktilaoduniqjgpigohpzvjcv_zmsw_tr7naj6b...@mail.gmail.com...
> [...] accuracy of 1ms. On a local network 100usec?? Even if we use > only switches(no routers), how is that possible if I have 4 types of > Latency increasing about 80us? The latency is corrected for. A query-response cycle is a back-and-forth exchange. The assumption is that the latency for the response (going forth) is equal to the latency for the response (going back), and both are half of the total latency, which you do know. So you estimate that the response was sent half the total latency time before the moment you received it. This often works well, and sometimes not so well. Domestic ADSL with a saturated upstream and downstream capacity left is one common case where it works not so well. [...] > I need accurancy at least of 1ms in 100% of time. That's a *very* tall order. Groetjes, Maarten Wiltink _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
