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Kenjiro Cho
#07 11/28/2002
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clock uncertainty
clock uncertainty
synchronization
difference of 2 clocks
accuracy
a given clock agrees with UTC
resolution
precision of a given clock
skew
change of accuracy or of synchronization with time
time precision
local clock skew/drift: 0.1-1sec/day
NTP: synchronizes clock within 10-100ms
tcpdump timestamp: 100usec-100msec (usually < 1msec)