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LGB5128A User Manual
9
2-2.2 NTP
NTP is Network Time Protocol and is used to sync the network time based on Greenwich
Mean Time (GMT). If you use the NTP mode and select a built-in NTP time server or
manually specify an user-defined NTP server as well as Time Zone, the switch will sync the
time in shortly after pressing <Apply> button. Though it synchronizes the time automatically,
NTP does not update the time periodically without user’s processing.
Time Zone is an offset time off GMT. You have to select the time zone first and then perform
time sync via NTP, because the switch will combine this time zone offset and updated NTP
time to result in the local time; otherwise, you will not able to get the correct time. The switch
supports configurable time zone from –12 to +13 step 1 hour.
Default Time zone: +8 Hrs.
Web Interface
To configure Time in the Web interface:
1. Click SYSTEM, NTP.
2. Type in the Time parameter.
3. Click Save.
Figure 2-2.2: The NTP configuration
Parameter description:
Server 1 to 5 :
Provide the NTP IPv4 or IPv6 address of this switch. The IPv6 address is a
128-bit value composed of eight fields of up to four hexadecimal digits with a
colon separating each field (:). For example, ‘fe80::215:c5ff:fe03:4dc7'. The
symbol '::' is a special syntax used as a shorthand way of representing multiple
16-bit groups of contiguous zeros; but it can only appear once. It can also
represent a legally valid IPv4 address.For example, '::192.1.2.34'.
Buttons
These buttons are displayed on the NTP page:
Save—Click to save changes.
Reset—Click to undo any changes made locally and revert to previously saved
values.