DG-FS4526 User Manual
3-33
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Setting the System Clock
Simple Network Time Protocol (SNTP) allows the switch to set its internal clock
based on periodic updates from a time server (SNTP or NTP). Maintaining an
accurate time on the switch enables the system log to record meaningful dates and
times for event entries. You can also set the clock manually (see “Setting the Time
Manually” on page 3-34). If the clock is not set, the switch will only record the time
from the factory default set at the last bootup.
When the SNTP client is enabled, the switch periodically sends a request for a time
update to a configured time server. You can configure up to three time server IP
addresses. The switch will attempt to poll each server in the configured sequence.
Configuring SNTP
You can configure the switch to send time synchronization requests to time servers.
Command Attributes
• SNTP Client – Configures the switch to operate as an SNTP client. This requires
at least one time server to be specified in the SNTP Server field. (Default: Disabled)
• SNTP Poll Interval – Sets the interval between sending requests for a time update
from a time server. (Range: 16-16384 seconds; Default: 16 seconds)
• SNTP Server – Sets the IP address for up to three time servers. The switch
attempts to update the time from the first server, if this fails it attempts an update
from the next server in the sequence.
Web – Select SNTP, Configuration. Modify any of the required parameters, and click
Apply.
Figure 3-21 SNTP Configuration
CLI – This example configures the switch to operate as an SNTP unicast client and
then displays the current time and settings.
Console(config)#sntp server 10.1.0.19 137.82.140.80 128.250.36.2 4-63
Console(config)#sntp poll 60 4-64
Console(config)#sntp client 4-62
Console(config)#exit
Console#show sntp
Current time: Jan 6 14:56:05 2004
Poll interval: 60
Current mode: unicast
SNTP status : Enabled
SNTP server 10.1.0.19 137.82.140.80 128.250.36.2
Current server: 128.250.36.2
Console#
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