Chapter 7 Basic Setting

 

Table 9 Basic Setting > General Setup (continued)

 

LABEL

DESCRIPTION

 

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

Daylight saving is a period from late spring to early fall when many countries set

 

Time

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 begin configuring this screen afresh.

 

 

 

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.

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.

 

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ES-2024 Series User’s Guide