Allied Telesis AT-S63 User Manual

Chapter 24: Multiple VLAN Modes

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Section VI: Virtual LANs

In this mode, each port is placed into a separate VLAN as an untagged 
port. The VLAN names and VID numbers are based on the port numbers. 
For example, the VLAN for port 4 is named Client_VLAN_4 and is given 
the VID of 4, the VLAN for port 5 is named Client_VLAN_5 and has a VID 
of 5, and so on.

The VLAN configuration is accomplished automatically by the switch. After 
you select the mode and an uplink port, the switch forms the VLANs. It 
also assigns the PVID values as well. For example, the PVID for port 4 is 
assigned as 4, to match the VID of 4.

A user-designated port on the switch functions as an uplink port, which 
can be connected to a shared device such as a router for access to a 
WAN. This port is placed as a tagged port in each VLAN. Thus, while the 
switch ports are separated from each other in their individual VLANs, they 
all have access to the uplink port.

The uplink port also has its own VLAN, where it is an untagged member. 
This VLAN is called Uplink_VLAN.

In 802.1Q Multiple VLAN mode, the device connected to the uplink 
port must be IEEE 802.1Q-compliant.

An example of the 802.1Q-compliant VLAN mode is shown in Table 20. 
The table shows the VLANs on the AT-9400 Switch where port 22 has 
been selected as the uplink port.

Table 20. 802.1Q-Compliant Multiple VLAN Example

Client_VLAN_1

1

1

22

Client_VLAN_2

2

2

22

Client_VLAN_3

3

3

22

Client_VLAN_4

4

4

22

Client_VLAN_5

5

5

22

Client_VLAN_6

6

6

22

Client_VLAN_7

7

7

22

Client_VLAN_8

8

8

22

Client_VLAN_9

9

9

22