Introduction To Vlans; Switch Setup - ZyXEL Communications XS3800-28 User Manual

Table 16 Basic Setting > General Setup (continued)
L ABEL
End Date
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8.4 Intro duc tio n to VL ANs
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 groups;
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.
VLAN also increases network performance by limiting broadcasts to a smaller and more manageable
logical broadcast domain. In traditional switched environments, all broadcast packets go to each and
every individual port. With VLAN, all broadcasts are confined to a specific broadcast domain.
Note: VLAN is unidirectional; it only governs outgoing traffic.
8.5 Switc h Se tup
Click
Ba sic Se tting
setup screens change depending on whether you choose
this screen (in Standalone mode).
Chapter 8 Basic Setting
DESC RIPT IO N
Configure the day and time when Daylight Saving Time ends if you selected
. The time field uses the 24 hour format. Here are a couple of examples:
T im e
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
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
depends on your time zone. In Germany for instance, you would select
Germany's time zone is one hour ahead of GMT or UTC (GMT+1).
Click to save your changes to the Switch's run-time memory. The Switch loses these
Apply
changes if it is turned off or loses power, so use the
save your changes to the non-volatile memory when you are done configuring.
Click to begin configuring this screen afresh.
C a nc e l
> in the navigation panel to display the screen as shown. The VLAN
Switc h Se tup
XS3800-28 User's Guide
, , and
Sunda y No ve m b e r 2:00
L a st
Sa ve
or
802.1Q
94
Da ylig ht Sa ving
.
, , and the last field
Sunda y O c to b e r
because
2:00
link on the top navigation panel to
in the
Po rt Ba se d VL AN T ype
field in