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Allied Telesis AT-S60 User Manual

Page 251

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Chapter 13: Virtual LANs

Section II: Local and Telnet Management

250

The table below lists the port assignments for the Sales and Production
VLANs on the switches:

As mentioned earlier, a VLAN that spans more than one switch requires a
data link(s) to connect its different parts together. In our example, both
VLANs span multiple switches. So both VLANs need to have a separate
link.

For the Sales VLAN, that link is provided by Port 5 on the AT-8411 TX line
card in Slot 1 in the AT-8400 Series switch and by Port 7 in the AT-8024
switch. The connection between the two ports allows the two parts of
the Sales VLAN to function as one logical VLAN.

For the Production VLAN, the connection is supplied by Port 4 on the
AT-8411 TX line card in Slot 4 of the AT-8400 Series switch and by Port 17
in the AT-8024 switch.

The two VLANs also need to be connected to the router so they can
exchange packets and access the WAN. The Sales VLAN is connected to
the router with Port 5 on the AT-8411 TX line card in Slot 2 of the
AT-8400 Series switch. The Production VLAN is connected to the router
with Port 4 on the line card in Slot 5.

Sales VLAN
(VID 2)

Production VLAN
(VID 3)

AT-8400 Series switch

Slot 1
Ports: 1-5 (PVID= 2)

Slot 2
Ports: 1-2, 5 (PVID= 2)

Slot 4
Ports: 1, 4 (PVID= 3)

Slot 5
Ports: 4 (PVID= 3)

AT-8024 Switch

Ports 1-7 (PVID=2)

Ports 17-21 (PVID= 3)