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Using virtual lans, The virtual lan (vlan) concept, Using virtual lans -40 – Moxa Technologies Moxa EtherDevice Switch EDS-405A User Manual

Page 55: The virtual lan (vlan) concept -40

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EDS-408A/405A Series User’s Manual

Featured Functions

3-40

TOS/DiffServ Mapping

Setting

Description

Factory Default

Low/Normal/
Medium/High

Set the mapping table of different TOS values to 4
different egress queues.

1 to 16: Low
17 to 32: Normal
33 to 48: Medium
49 to 64: High

Using Virtual LANs

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 Virtual LAN (VLAN) Concept

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:

y Departmental groups—You could have one VLAN for the Marketing department, another

for the Finance department, and another for the Development department.

y Hierarchical groups—You could have one VLAN for directors, another for managers, and

another for general staff.

y Usage groups—You could have one VLAN for e-mail users, and another for multimedia

users.

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