User manual

4 Configuration DES-1210 Metro Ethernet Managed Switch User Manual
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Clock Source: Specify the clock source by which the system time is set. The possible options are:
Local - Indicates that the system time is set locally by the device.
SNTP - Indicates that the system time is retrieved from a SNTP server.
Current Time: Displays the current date and time for the switch.
If choosing SNTP for the clock source, then the following parameters will be available:
SNTP First Server: Select IPv4 or IPv6 and specify the IP address of the primary SNTP server from which
the system time is retrieved.
SNTP Second Server: Select IPv4 or IPv6 and specify the IP address of the secondary SNTP server from
which the system time is retrieved.
SNTP Poll Interval in Seconds (30-99999): Defines the interval (in seconds) at which the SNTP server is
polled for Unicast information. The Poll Interval default is 30 seconds.
Click Apply to implement changes made.
When selecting Local for the clock source, users can select from one of two options:
Manually set current time: Users input the system time manually.
Set time from PC: The system time will be synchronized from the local computer.
Configuration > SNTP Settings > TimeZone Settings
The TimeZone Setting Page is used to configure time zones and Daylight Savings time settings for SNTP.
Figure 4.76 – Configuration > SNTP > TimeZone Settings
Daylight Saving Time State: Enable or disable the DST Settings.
Daylight Saving Time Offset: Use this drop-down menu to specify the amount of time that will constitute
your local DST offset - 30, 60, 90, or 120 minutes.
Time Zone Offset GMT +/- HH:MM: Use these drop-down menus to specify your local time zone's offset
from Greenwich Mean Time (GMT.)
Daylight Saving Time Settings:
From: Month / Day: Enter the month DST and date DST will start on, each year.
From: HH:MM: Enter the time of day that DST will start on, each year.
To: Month / Day: Enter the month DST and date DST will end on, each year.
To: HH:MM: Enter the time of day that DST will end on, each year.
Click Apply to implement changes made.
Configuration > DHCP/BOOTP Relay > DHCP/BOOTP Relay Global Settings
User can enable and configure DHCP/BOOTP Relay Global Settings on the Switch.