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Recommended public SNTP time servers 290
SmartWare Software Configuration Guide 26 • SNTP client configuration
Example: Enable the SNTP debug monitor
The following example shows how to enable the SNTP debug monitor and some typical debug information.
node(cfg)#debug sntp client
node(cfg)#14:44:21 SNTP > SNTP message sent with Timestamp: 2001-10-26T14:44:21
14:44:21 SNTP > SNTP message received:
------------------------------------------------
Server: 172.16.1.10:123 v4
Stratum: 2
Time: 2001-10-26T12:44:21
InternetTime: 20010926@530
------------------------------------------------
14:44:21 SNTP > Set the system time to 2001-10-26T14:44:21
14:44:51 SNTP > SNTP message sent with Timestamp: 2001-10-26T14:44:51
14:45:21 SNTP > SNTP message sent with Timestamp: 2001-10-26T14:45:21
14:45:51 SNTP > SNTP message sent with Timestamp: 2001-10-26T14:45:51
14:46:21 SNTP > SNTP message sent with Timestamp: 2001-10-26T14:46:21
14:46:51 SNTP > SNTP message sent with Timestamp: 2001-10-26T14:46:51
Example: Disable the SNTP debug monitor
The following example shows how to disable the SNTP debug monitor and end any debug information.
node(cfg)#no debug sntp client
Recommended public SNTP time servers
NIST Internet time service
The National Institute of Standards and Technology (NIST) Internet Time Service allows users to synchronize
computer clocks via the Internet. The time information provided by the service is directly traceable to UTC.
Table 13 contains information about all of the time servers operated by NIST. Please note that while NIST
makes every effort to ensure that the names of the servers are correct, NIST only controls the names of the
nist.gov severs.
Table 13. Time servers operated by NIST
Server Name IP Address Location
nist1.aol-va.truetime.com 205.188.185.33 DC/Virginia
utcnist.colorado.edu 128.138.140.44 Colorado
nist1.aol-ca.truetime.com 207.200.81.113 California
nist1-dc.glassey.com 216.200.93.8 DC/Virginia
nist1.datum.com 63.149.208.50 California
nist1-ny.glassey.com 208.184.49.9 New York City
nist1-sj.glassey.com 207.126.103.204 California
time-a.timefreq.bldrdoc.gov 132.163.4.101 Colorado
time-b.timefreq.bldrdoc.gov 132.163.4.102 Colorado
time-c.timefreq.bldrdoc.gov 132.163.4.103 Colorado