Allied-telesis AT-S21 Manual do Utilizador descarregar pdf (Página 50)

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3-18

The number of configurable VLANs depends on the switch’s port

count, including the RS232 management port and any optional

uplink ports. The AT-8118 and AT-8118XL each have 16 base ports,

with none, one, or two optional uplink ports, for a total count of 16,

17, or 18 ports. The AT-8124XL has 24 ports. The AT-8126XL has 24

base ports wih none, one, or two optional uplink ports, for a total

count of 24, 25, or 26 ports.

Advantages of Using VLANs

❑

You have the flexibility of grouping workstations logically or

functionally, regardless of their physical location on the

network.

❑

You can change VLAN memberships anytime by software

configuration without moving the workstations physically, or

change group memberships by simply moving a cable from

one port to another.

The examples used in the procedures that follow will illustrate a

simple yet practical way of “splitting” a 24-port switch into two

virtual switches by configuring two VLANs.

In these procedures, you will:

❑

Configure a 24-port switch into two VLANs,

East

and

West.

❑

Assign ports 1-12 to

East

and ports 13-25 to

West

. The RS232

management port is Port 25.

To view the ports’ default VLAN configuration, select Virtual

LANs>Port to VLAN configuration. The screen shows all

ports belonging to

Default VLAN

. See Figure 3-7 for an example of

the list (partially shown).

Figure 3-7

Switch Ports’ Default VLAN Configuration

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 89 90

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