Further examples of NTP
This example demonstrates the use of ntpq
and xntpdc to list the
servers that chicago.mynet.com is currently polling.
The server marked with an asterisk (*) is the one
that chicago is currently synchronizing with.
chicago
is also listening for broadcast packets on the subnet with IP
address 132.147.246,
but no packets are currently being broadcast there.
Note the difference
in the units used by
ntpq and
xntpdc to display delay, offset, and dispersion.
The former uses milliseconds, whereas the latter uses seconds.
chicago# ntpq ntpq> peerremote refid st when poll reach delay offset disp ========================================================================== 132.147.246.255 0.0.0.0 16 never 64 0 0.0 0.00 64000 *acapulco.mynet.com clepsydra.dec 2 53 64 376 81.1 -1.00 12.4 +moscow.mynet.com norad.arc.nas 2 11 64 37 41.2 30.00 7504.3
chicago# xntpd xntpd> peer
remote local st poll reach delay offset disp =========================================================================== *acapulco.mynet.com 132.147.246.16 2 64 376 0.0811 -0.001003 0.0124 -moscow.mynet.com 132.147.246.7 2 64 37 0.0412 0.030001 7.5043 ^132.147.246.255 0.0.0.0 16 64 0 0.0000 0.000000 64.000
This information tells us, among other things, that: