[time-nuts] Low-long-term-drift clock for board levelintegration?
albertson.chris at gmail.com
Wed Feb 22 00:15:08 UTC 2012
On Tue, Feb 21, 2012 at 10:47 AM, Attila Kinali <attila at kinali.ch> wrote:
> If you read carefully what the OP wrote, you'll see that he
> wants to measure one way trips.
Yes, just like the swim coach who wants to measure the swimmer doing
one length of the pool. He uses a stop watch, Not two wrist
So in this case you computers yells "test" to the other computer which
responds with "I got it". You measure the round trip with a stop
watch. Then the other computer says test and you reply. You can
detect asymmetry by using long test messages and short replies and
sending them from both ends
Next you send a real data packet and wait for a reply then subtract
the time it takes for replies.
Redondo Beach, California
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