clockdiff
.Id $Id: clockdiff.8.in,v ss990107 1999/01/07 15:59:58 ig25 Exp $
Manual Reference Pages - CLOCKDIFF (8)
NAME
clockdiff - Measures clock difference between us and <destination> with 1msec resolution. Without -o option it uses icmp timestamps, with -o it uses icmp echo with timestamp IP option.
CONTENTS
SYNOPSIS
clockdiff [-o|-o1] <destination>
WARNINGS
| * some nodes (f.e. Solaris<2.4) do not support icmp | |
| timestamps. clockdiff -o still works. | |
| * some nodes (Cisco) use non-standard timestamps, | |
| which makes clockdiff useless. | |
| * some nodes use wrong timestamps (Solaris>2.4), if | |
| run xntpd. Seems, it uses different clock source, which is synchronized to time-of-day clock periodically. | |
| * -o1 uses three-node tstamp. What option (-o or -o1) | |
| works better depends on target host. | |
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