16
2
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2.2 NTP
Parameter
Description
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 a user
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defined NTP server and Time Zone, the
switch will sync the time in a short period 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 of 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 come out the local time. Otherwise, you will not able to get the
correct time. The switch supports configurable time zone from –12 to +13 in 1 hour
steps.
Default Time Zone: +8 Hrs.
Web Interface
To configure Time in the web interface:
1.
Click SYSTEM, NTP.
2.
Specify the Time parameter in manual parameters.
3.
Click “Apply”.
Figure 2-2.2: The NTP Configuration
Server 1 to 5:
Provides the NTP IPv4 or IPv6 address of this switch. IPv6 address is in
128
-
bit records represented as 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 that can be used as a shorthand way of representing multiple
16
-
bit groups of contiguous zero’s. However, 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:
Apply
– Click “Apply” to save changes.
Reset
– Click “Reset” to undo any changes made locally and reverts to
previously saved values.
