ZyXEL Communications MES3500-24F 用户手册
Chapter 8 Basic Setting
MES3500-24/24F User’s Guide
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8.4 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.
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.
In MTU (Multi-Tenant Unit) applications, VLAN is vital in providing isolation and security among the
subscribers. When properly configured, VLAN prevents one subscriber from accessing the network
resources of another on the same LAN, thus a user will not see the printers and hard disks of
another user in the same building.
subscribers. When properly configured, VLAN prevents one subscriber from accessing the network
resources of another on the same LAN, thus a user will not see the printers and hard disks of
another user in the same building.
New Time
(hh:min:ss)
(hh:min:ss)
Enter the new time in hour, minute and second format. The new time then appears in the
Current Time field after you click Apply.
Current Time field after you click Apply.
Current Date
This field displays the date you open this menu.
New Date (yyyy-
mm-dd)
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.
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.
GMT, Greenwich Mean Time) and your time zone from the drop-down list box.
Daylight Saving
Time
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.
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:
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.
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).
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:
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.
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).
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.
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 begin configuring this screen afresh.
Table 10
Basic Setting > General Setup (continued)
LABEL
DESCRIPTION