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Configuring vlans – Allied Telesis AT-S83 User Manual

Page 371

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AT-S83 Management Software Command Line Interface User’s Guide

371

Configuring VLANs

A Virtual Local Area Network (VLAN) is a network topology that is
configured according to a logical scheme rather than the physical layout.
VLANs can be used to combine any collection of LAN segments into an
autonomous user group that appears as a single LAN. In addition, VLANs
logically segment the network into different broadcast domains so that
packets are forwarded only between interfaces within the VLAN. In
general, a VLAN corresponds to a particular subnet.

To configure a VLAN, you create a VLAN in the configuration VLAN mode.
Then enter the Interface mode which allows you to assign a VLAN to a
interface. There are two VLAN modes:

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Access mode - permits you to assign one VLAN to one interface

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Trunk mode - permits you to assign multiple VLANs to one interface

The default VLAN, which is also the native VLAN, is VLAN 1. In the
following configuration example, Use the sample VLAN configuration to:

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Access the VLAN mode

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Create VLANs 2 through 4

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Assign a name to a VLAN

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Assign an interface to a VLAN

1. Enter the Configuration Terminal mode:

switch# configure terminal

2. Enter the VLAN mode:

switch(config)#vlan database

3. Create VLAN 2:

switch(config-vlan)#vlan 2

By default, VLAN 2 is enabled.

4. Assign VLAN 2 the name “stre:”

switch(config-vlan)#vlan 2 name stre