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Administration
Time Settings
STEP 1
STEP 2
STEP 3
Cisco Small Business SG200 Series 8-port Smart Switches Administration Guide
Configuring the SNTP Setting
Ensure that the Use SNTP Server option is selected on the System Time page and
that the Unicast or Broadcast mode is selected as required.
On the SNTP Setting page, configure the following:
•
Client Port—The logical port number to use for the SNTP client on the
switch. The default is the well-known IANA port number for this service, 123.
•
Unicast Poll Interval—The relative rate at which the switch sends
synchronization messages to the SNTP server. This field is editable only
when SNTP Unicast reception is selected. Enter a value from 3 to 16. The
actual interval, in seconds, is the specified value to the power of 2; for
example, if you enter 4, the poll interval is 16 seconds.
Click Apply. Your changes are saved to the Running Configuration.
Viewing Active Server Properties and Global Parameters
The SNTP Setting page displays the following properties for the SNTP server, if
any, from which the switch most recently acquired its time settings. This page also
displays global (nonconfigurable) parameters.
Active Server:
•
Server Host Address—IP address of the SNTP server.
•
Server Type—IP protocol version the server uses (IPv4 or IPv6).
•
Server Stratum—Hierarchical level of the SNTP server that identifies its
distance from a reference clock.
•
Server Reference Id—32-bit code that identifies the reference clock that
this server uses.
•
Server Mode—Mode in which the server is operating:
-
Unicast—The SNTP server listens to unicast requests from SNTP
clients.
-
Broadcast—The SNTP server sends broadcast messages periodically
to SNTP clients.
-
Reserved—No reply has been received from an SNTP Server. When a
response is received from a server, it is overwritten with one of the valid
states (Broadcast or Unicast)
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