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VIRTUAL LANS

This chapter provides information on Virtual Local

Area Networks (VLANs). Deﬁnitions, beneﬁts, sample

conﬁgurations and concepts of VLANs are described

here, including:

■ What are VLANs?

■ Beneﬁts of VLANs

■ VLANs and the Switch 2000 TR

Setting up Virtual Local Area Networks (VLANs) on

the Switch 2000 TR provides you with less time-con-

suming network administration and more efﬁcient

network operation.

The following sections explain more about the con-

cept of VLANs and explain how they can be imple-

mented on the Switch 2000 TR.

What are VLANs?

A VLAN is deﬁned as a group of location- and topol-

ogy- independent devices that communicate as

though they were on the same physical LAN. This

means that LAN segments are not restricted by the

hardware that physically connects them; the seg-

ments are deﬁned by ﬂexible user groups that you

create using software.

With VLANs, you can deﬁne your network according

to:

■ Departmental Groups—For example, you can have

one VLAN for the Marketing department, another

for the Finance department, and another for the

Development department.

■ Hierarchical Groups—For example, you can have

one VLAN for Directors, another for Managers,

and another for general staff.

■ Usage Groups—For example, you can have one

VLAN for users of email, and another for users of

multimedia.

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3com TR User Manual Page 99