User Manual

24-Port and 48-Port Gigabit Ethernet PoE+ Smart Switches with 4 SFP Ports
Configure System Information User Manual74
address is a DNS host name, then that host name is resolved into an IP address each
time an SNTP request is sent to it.
9. If the UDP port on the SNTP server to which SNTP requests are sent is not the standard
port (123), specify the port number in the Port field.
The valid range is 1 to 65535. The default value is 123.
10. In Priority field, specify the priority order in which the switch must query the servers.
The SNTP client on the device continues sending SNTP requests to different servers until
a successful response is received, or all servers are exhausted.
The priority indicates the
order in which to the switch must query the servers. The request is sent to an SNTP
server with a priority value of 1 first, then to a server with a priority value of 2, and so on.
If any servers are assigned the same priority, the SNTP client contacts the servers in the
order that they appear in the table. The valid range is 1 to 3. The default value is 1.
11. Click the Add button.
The SNTP server entry is added.
12. Repeat the previous steps to add additional SNTP servers.
You can configure up to three SNTP servers.
The SNTP Server Status table displays status information about the SNTP servers
configured on your switch.
The following table describes the SNTP Server Global Status
information.
Table 14. SNTP Server Status information
Field Description
Address All the existing server addresses. If no server configuration exists, a message stating
that no SNTP server exists displays on the page.
Last Update Time The local date and time (UTC) that the response from this server was used to update
the system clock.
Last Attempt Time The local date and time (UTC) that this SNTP server was last queried.
Last Attempt Status The status of the last SNTP request or unsolicited message for both unicast and
broadcast modes. If no message was received from a server
, a status of Other is
displayed. These values are appropriate for all operational modes:
• Other.
The status of the last request is unknown, or no SNTP responses were
received.
• Success. The SNTP operation was successful and the system time was updated.
• Request Timed Out. After an SNTP request was sent to an SNTP server, the
response timer expired before a response from the server was received.
• Bad Date Encoded. The time provided by the SNTP server is not valid.
• Version Not Supported. The SNTP version supported by the server is not
compatible with the version supported by the client.
• Server Unsynchronized. The SNTP server is not synchronized with its peers. This
is indicated by the leap indicator field on the SNTP message.