User Manual

8-Port or 16-Port Gigabit Smart Managed Pro Switch Model GS418TPP, GS510TLP, and GS510TPP
Configure System Information User Manual56
Configure an SNTP server
SNTP assures accurate network device clock time synchronization up to the millisecond.
Time synchronization is performed by a network SNTP server. The switch operates only as
an SNTP client and cannot provide time services to other systems.
Time sources are established by strata. Strata define the accuracy of the reference clock.
The higher the stratum (where zero is the highest), the more accurate the clock. The device
receives time from Stratum 1 and above since it is itself a Stratum 2 device.
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.
• 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 in the SNTP message.
• Server Kiss Of Death. The SNTP server indicated that no further queries
were to be sent to this server. This is indicated by a stratum field equal to
0 in a message received from a server.
Server IP Address The IP address of the server for the last received valid packet. If no message
was received from any server
, an empty string is shown.
Address T
ype The address type of the SNTP server address for the last received valid
packet.
Server Stratum The claimed stratum of the server for the last received valid packet.
Reference Clock ID The reference clock identifier of the server for the last received valid packet.
Server mode The mode of the server for the last received valid packet.
Unicast Server Max Entries The maximum number of unicast server entries that can be configured on this
client.
Unicast Server Current Entries The number of current valid unicast server entries configured for this client.
Broadcast Count The number of unsolicited broadcast SNTP messages that were received and
processed by the SNTP client since the last reboot.
Table 13. SNTP Global Status information (continued)
Field Description