Chapter 3
| Basic Management Tasks
Setting the System Clock
– 83 –
Specifying NTP Time Servers
Use the System > Time (Configure Time Server – Add NTP Server) page to add the IP
address for up to 50 NTP time servers.
Parameters
The following parameters are displayed:
◆ NTP Server IP Address – Adds the IPv4 or IPv6 address for up to 50 time
servers. The switch will poll the specified time servers for updates when the
clock maintenance type is set to NTP on the System > Time (Configure General)
page. It issues time synchronization requests at a fixed interval of 1024 seconds.
The switch will poll all the time servers configured, the responses received are
filtered and compared to determine the most reliable and accurate time update
for the switch.
◆ Version – Specifies the NTP version supported by the server. (Fixed: Version 3)
◆ Authentication Key – Specifies the number of the key in the NTP
Authentication Key List to use for authentication with the configured server.
NTP authentication is optional. If enabled on the System > Time (Configure
General) page, you must also configure at least one key on the System > Time
(Add NTP Authentication Key) page. (Range: 1-65535)
Web Interface
To add an NTP time server to the server list:
1. Click System, then Time.
2. Select Configure Time Server from the Step list.
3. Select Add NTP Server from the Action list.
4. Enter the IP address of an NTP time server, and specify the index of the
authentication key if authentication is required.
5. Click Apply.
Figure 16: Adding an NTP Time Server
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