Adding An Sntp Server - Cisco 200 Series Administration Manual

System Time

Adding an SNTP Server

STEP
Adding an SNTP Server
NOTE
STEP 1
Cisco Small Business 200 Series Smart Switch Administration Guide
Time—The time at which DST ends every year.
Click Apply. The system time values are defined, and the switch is updated.
3
The time settings are displayed in the Actual Time Details block.
A switch can be configured to synchronize its system clock with an SNTP server
SNTP Settings Page
by using the
If specifying an SNTP server by name, this feature requires that the DNS servers be
configured on the switch (see the
The switch supports the following modes:
• Broadcast—The SNTP server broadcasts the time, and the switch listens to
these broadcasts. When the switch is in this mode, there is no need to
define a Unicast SNTP server.
• Unicast SNTP Server Mode—The switch sends Unicast queries to the list of
manually-configured SNTP servers, and waits for a response.
The switch supports having both modes active at the same time, choosing the
best source of the parameters according to the closest stratum (distance from the
reference clock.).
To add an SNTP server:
Click Administration > Time Settings > SNTP Settings. The
opens.
This page displays the following information for each Unicast SNTP server:
• SNTP Server—SNTP server IP address. Up to eight SNTP servers can be
defined. The preferred server, or hostname, is chosen according to its
stratum level.
• Poll Interval—Interval (in seconds) at which the SNTP server is polled for
system time information. The poll interval is 1024 seconds.
• Authentication Key ID—Key Identification used to communicate between
the SNTP server and switch.
.
Defining DNS Servers
5
section) to work properly.
SNTP Settings Page
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