Accton Technology ES4626 - Manual (Page 350)

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All ES4624-SFP/ES4626-SFP switch in the autonomous zone are required to perform
time synchronization, which is done through two redundant SNTP/NTP servers. For time
to be synchronized, the network must be properly configured. There should be reachable
route between any ES4624-SFP/ES4626-SFP switch and the two SNTP/NTP servers.
Example: Assume the IP addresses of the SNTP/NTP servers are 10.1.1.1 and 20.1.1.1,
respectively, and SNTP/NTP server function (such as NTP master) is enabled, then
configurations for any ES4624-SFP/ES4626-SFP switch should like the following:
Switch#config
Switch(Config)#sntp server 10.1.1.1
Switch(Config)#sntp server 20.1.1.1
From now on, SNTP would perform time synchronization to the server according to the
default setting (polltime 64s, version 1).
11.4 Web Management
Click “SNTP configuration” to open the switch SNTP configuration management list.
Users may then make configuration to switch’s SNTP settings.
11.4.1 SNMP/NTP server configuration
Click “SNTP configuration”, “SNTP/NTP server configuration” to configure SNTP/NTP
server address and server version.
Example: Configure Server address as 10.1.1.1, configure version as 4, and then, Click
Apply button to apply the configuration to switch.
11.4.2 Request interval configuration
Click “SNTP configuration”, “Request interval configuration” to configure the sending
request time interval from SNTP client to NTP/SNTP server.
Example: Configure Interval as 128 minutes, Click Apply to set the configuration in the
switch.
11.4.3 Time difference