ZyXEL Communications ES-2108, User Manual, Page: 75 / 284

Chapter 7 Basic Setting
ES-2108 Series User’s Guide
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7.4 Introduction to VLANs
A VLAN (Virtual Local Area Network) allows a physical network to be partitioned into
multiple logical networks. Devices on a logical network belong to one group. A device can
belong to more than one group. With VLAN, a device cannot directly talk to or hear from
devices that are not in the same group(s); the traffic must first go through a router.
Current Date This field displays the date you open this menu.
New Date (yyyy-
mm-dd) Enter the new date in year, month and day format. The new date then appears in
the
Current Date field after you click Apply .
Time Zone Select the time difference between UTC (Universal Time Coordinated, formerly
known as GMT, Greenwich Mean Time) and your time zone from the drop-down list
box.
Daylight Saving
Time Daylight saving is a period from late spring to early fall when many countries set
their clocks ahead of normal local time by one hour to give more daytime light in the
evening.
Select this option if you use Daylight Saving Time.
Start Date Configure the day and time when Daylight Saving Time starts if you selected
Daylight Saving Time . The time is displayed in the 24 hour format. Here are a
couple of examples:
Daylight Saving Time starts in most parts of the United States on the second
Sunday of March. Each time zone in the United States starts using Daylight Saving
Time at 2 A.M. local time. So in the United States you would select
Second ,
Sunday , March and 2:00 .
Daylight Saving Time starts in the European Union on the last Sunday of March. All
of the time zones in the European Union start using Daylight Saving Time at the
same moment (1 A.M. GMT or UTC). So in the European Union you would select
Last , Sunday , March and the last field depends on your time zone. In Germany for
instance, you would select 2:00 because Germany's time zone is one hour ahead
of GMT or UTC (GMT+1).
End Date Configure the day and time when Daylight Saving Time ends if you selected
Daylight Saving Time . The time field uses the 24 hour format. Here are a couple
of examples:
Daylight Saving Time ends in the United States on the first Sunday of November.
Each time zone in the United States stops using Daylight Saving Time at 2 A.M.
local time. So in the United States you would select
First , Sunday , November and
2:00 .
Daylight Saving Time ends in the European Union on the last Sunday of October.
All of the time zones in the European Union stop using Daylight Saving Time at the
same moment (1 A.M. GMT or UTC). So in the European Union you would select
Last , Sunday , October and the last field depends on your time zone. In Germany
for instance, you would select 2:00 because Germany's time zone is one hour
ahead of GMT or UTC (GMT+1).
Apply Click Apply to save your changes to the Switch’s run-time memory. The Switch
loses these changes if it is turned off or loses power, so use the Save link on the
top navigation panel to save your changes to the non-volatile memory when you
are done configuring.
Cancel Click Cancel to reset the fields to your previous configuration.
Table 10 Basic Setting > General Setup (continued)
LABEL DESCRIPTION