Moxa Technologies EtherDevice Manuel d'utilisateur télécharger pdf (Page 51)

EDS-508 Series User’s Manual Featured Functions

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Using Virtual LAN

Setting up Virtual LANs (VLANs) on your EDS increases the efficiency of your network by

dividing the LAN into logical segments, as opposed to physical segments. In general, VLANs are

easier to manage.

The Concept of Virtual LAN (VLAN)

What is a VLAN?

A VLAN is a group of devices that can be located anywhere on a network, but which

communicate as if they are on the same physical segment. With VLANs, you can segment your

network without being restricted by physical connections—a limitation of traditional network

design. As an example, with VLANs you can segment 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 e-mail users, and another for

multimedia users.

Benefits of VLANs

The main benefit of VLANs is that they provide a network segmentation system that is far more

flexible than traditional networks. Using VLANs also provides you with three other benefits:

# VLANs ease the relocation of devices on networks: With traditional networks, network

administrators spend much of their time dealing with moves and changes. If users move to a

different subnetwork, the addresses of each end-station must be updated manually. With a

VLAN setup, if an end-station on VLAN Marketing for example is moved to a port in

another part of the network, and retains its original subnet membership, you only need to

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Switch

Switch B

Backbone connects multiple switches

Department 1

VLAN 1

Department 2

VLAN 2

Department 3

VLAN 3

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Moxa Technologies EtherDevice Manuel d'utilisateur Page 51

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