Hi-- On Jul 30, 2013, at 7:24 AM, Biswajit Panigrahi <[email protected]> wrote: > Both are communicating properly. I would like to test when the > connectivity between those two goes down, after how much time the > "reach" option in ntpq -p command becomes zero.
The "reach" field is a 1-byte large bitmap which tracks whether the last 8 NTP polls got a reply, so the answer to your question is: 8 * poll interval > The reach option will still keep on increase to 377 then gradually > decreases to zero. The time duration to come to zero is almost 20 > minute. That seems about right if you'd just restarted both ntpds and then stopped the server once the client got to 377, as the client wouldn't have reached default maxpoll = 10 interval of ~17 minutes. If you'd waited longer, it would likely take a bit over two hours to clear the reach field. > Can we reduce the time gap ? Yes, you can reduce maxpoll to have reach field zero out more quickly. There are tradeoffs involved in doing so, however. Regards, -- -Chuck _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
