NTP Parameters

node1:/var/log # ntpdc -p (uses sec instead of ms).

     remote           local      st poll reach  delay   offset    disp
=======================================================================
=LOCAL(0)        127.0.0.1       10   64  377 0.00000  0.000000 0.03053
*circle.net          16.88.11.29   2  512  377 0.06363 -0.017075 0.11371
=netservice       16.88.11.29  16 1024    0 0.00000  0.000000 3.99217
=ntp1.iso           16.88.11.29   3  512  377 0.11404 -0.010279 0.10500
node1:/var/log #

“+” – Good and a preferred remote peer or server (included by the combine algorithm)

“*” – The remote peer or server presently used as the primary reference;

poll : NTP polls each peer every “poll” seconds.

when : is relative time of last poll.

reach : track of last successful polls, 377 is best.

Delay : is network delay, this is fine

offset : offset between local and peer clock (ms) and it should be low.

jitter : Mean deviation (jitter) in the time reported for that remote peer or server.