Patton electronic SmartNode 4110 Series manual Recommended public Sntp time servers

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

Recommended public SNTP time servers 290