Yamaha 10G SWR2310-28GT/18GT/10G Command Reference - Page 43
Synchronize time from NTP server one-shot update, 6.6 Synchronize time from NTP server update
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Command Reference | Maintenance and operation functions | 43 If time synchronization is performed with two NTP servers specified, they are queried in the order of NTP server 1 and NTP server 2 as shown by the show ntpdate command. The query to NTP server 2 is performed only if synchronization with NTP server 1 fails. [Example] Specify 192.168.1.1 as the NTP server. SWR2310(config)#ntpdate server ipv4 192.168.1.1 Specify fe80::2a0:deff:fe11:2233%vlan1 as the NTP server. SWR2310(config)#ntpdate server ipv6 fe80::2a0:deff:fe11:2233%vlan1 Specify ntp.example.com as the NTP server. SWR2310(config)#ntpdate server name ntp.example.com 4.6.5 Synchronize time from NTP server (one-shot update) [Syntax] ntpdate oneshot [Input mode] privileged EXEC mode [Description] Attempts to obtain time information from the registered NTP server. This is performed only once when this command is executed. [Example] Obtain time information from the NTP server. SWR2310#ntpdate oneshot 4.6.6 Synchronize time from NTP server (update interval) [Syntax] ntpdate interval interval-time no ntpdate interval [Parameter] interval-time : Interval (hours) for time synchronization. If this is set to 0 hours, periodic synchronization will not occur. [Initial value] ntpdate interval 1 [Input mode] global configuration mode [Description] Specifies the interval (in one-hour units) at which time information is periodically obtained from the registered NTP server. If this command is executed with the "no" syntax, the setting returns to the default. When this command is executed, the time is updated immediately, and is subsequently updated at the specified interval. [Example] Request the time every two hours. SWR2310(config)#ntpdate interval 2 Disable periodic time synchronization. SWR2310(config)#ntpdate interval 0