Administration
Time Settings
Cisco Small Business SG200 Series 8-port Smart Switch
47
3
•
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
default value is 3. 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.
•
Broadcast Poll Interval
—The relative rate that the switch broadcasts
synchronization messages. This field is editable only when SNTP Broadcast
reception is selected. Enter a value from 3 to16. The default value is 3. 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."
If the switch detects a server, it ignores time broadcasts from other SNTP
servers unless the Broadcast Poll Interval expires three consecutive times
without an update received from the server.
STEP 3
Click
Apply
. Your changes are saved to the Running Configuration.
Adding and Modifying SNTP Servers
The Unicast SNTP Servers Table displays the following information for each SNTP
server that you configure:
•
SNTP Server
—IP address or hostname of the SNTP server.
•
Authentication Key ID
—Encryption key required to communicate with the
SNTP server.
•
Last Attempt Time
—The time of the most recent attempt by the switch to
synchronize with an SNTP unicast server.
•
Status
—Operating status of the SNTP server. Possible values are:
-
Success
—Client could get the time from this server.
-
Request timed-out
—Client request timed out.
-
Bad Date Encoded
—A bad date format was received from server.
-
Version Not Supported
—Server does not support the SNTP version
configured on the switch.
-
Server Unsynchronized
—Switch time is not synchronized with the
server.
