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ntptrace4(1M)		System Administration Commands		 ntptrace4(1M)

NAME
       ntptrace4 - trace a chain of NTP hosts back to their master time source

SYNOPSIS
       /usr/sbin/ntptrace4 [-n] [-m maxhosts] [server]

DESCRIPTION
       ntptrace4  determines  from  where  a given Network Time Protocol (NTP)
       server gets its time, and follows the chain of	NTP  servers  back  to
       their master time source. If given no arguments, it starts with	local‐
       host.

OPTIONS
       The following options are supported:

       -n	     Turns off the printing of host names;  instead,  host  IP
		     addresses are given.

       -m maxhosts   Sets  the maximum number of levels up the chain that will
		     be followed.

EXAMPLES
       Example 1 Sample Output From the ntptrace4 Command

       The following example shows the output from the ntptrace4 command:

	 % ntptrace4

	  localhost: stratum 4, offset 0.0019529, synch distance 0.144135
	  server2.bozo.com: stratum 2, offset 0.0124263, synch distance 0.115784
	  usndh.edu: stratum 1, offset 0.0019298, synch distance 0.011993, refid 'WWVB'

       On each line, the fields are (left to right):

	   o	  The server's host name

	   o	  The server's stratum

	   o	  The time offset between that server and the local  host  (as
		  measured by ntptrace4; this is why it is not always zero for
		  localhost)

	   o	  The host's synchronization distance

	   o	  The reference clock ID (only for stratum-1 servers)

       All times are given in seconds. Synchronization distance is  a  measure
       of the goodness of the clock's time.

NOTES
       Source for ntptrace4 is available in the SUNWntp4S package.

       The package name that delivers this program will be changed in the next
       release and should not be relied on. The name of this program will also
       change at that time, and should not be relied on.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Availability		     │SUNWntp4u			   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Interface Stability	     │Volatile Obsolete		   │
       └─────────────────────────────┴─────────────────────────────┘
SEE ALSO
       ntpq4(1M), ntpd(1M), ntpdc(1M), attributes(5))

								 ntptrace4(1M)

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