CCNP TSHOOT 6.0 - The Cisco Learning Network

CCNPv6 TSHOOT
R1#show ntp status
Clock is synchronized, stratum 4, reference is 192.168.2.1
nominal freq is 250.0000 Hz, actual freq is 250.0002 Hz, precision is 2**24
reference time is CED63F93.9C972B04 (17:51:15.611 UTC Fri Dec 18 2009)
clock offset is -0.0003 msec, root delay is 0.01 msec
root dispersion is 0.00 msec, peer dispersion is 0.00 msec
loopfilter state is 'CTRL' (Normal Controlled Loop), drift is -0.000000977 s/s
system poll interval is 64, last update was 20 sec ago.
In the first example above, the R1 clock is unsynchronized, and there is no reference clock. The stratum level
defaults to 16 (the highest) when no NTP server is reachable. The last update occurred before the firewall was
applied and blocked NTP. In the second example, the R1 clock is synchronized, and the reference clock is R2
192.168.2.1. The stratum level is now 4. The last update occurred very recently after the firewall was adjusted to
allow NTP.
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