Allied Telesis AT-S60 - Manual (Page 278)

AT-S60 Management Software User’s Guide
Section II: Local and Telnet Management 277
Note
In 802.1Q Multiple VLAN mode, the device connected to the uplink
port must be 802.1Q-compliant and must be able to handle tagged
packets.
Non-802.1Q
Compliant
Multiple VLANs
The Non-802.1Q Multiple VLAN mode is appropriate when the device
connected to the uplink port is non-802.1Q compatible, meaning that
the device cannot handle tagged packets.
When the Non-802.1Q Multiple VLAN mode is selected, each port is
placed as an untagged port in a separate Client VLAN. One port, selected
as the uplink port, is also added to each VLAN, also as an untagged port.
The fact that the uplink port is untagged and that it is placed in more
than one VLAN is why this mode is referred to as non-802.1Q compliant.
Untagged ports are suppose to belong to only one VLAN at a time. Only
tagged ports can belong to multiple VLANs.
When you select the Non-802.1Q Multiple VLAN mode, you are asked to
specify the uplink port. After you specify the port, the switch
automatically creates the VLANs.
Table 9 illustrates this VLAN mode on an AT-8400 Series switch. It lists a
few of the ports on the switch and shows how each port has been added
as an untagged port to its own separate VLAN. Port 2.2 was selected as
the uplink port. It was added as an untagged port to each VLAN.
Client_7 7 1.7 2.2
Client_8 8 1.8 2.2
Client_9 9 2.1 2.2
Client_10 10 2.2
Client_11 11 2.3 2.2
Table 8 802.1Q-Compliant Multiple VLAN Example
VLAN Name VID Untagged Port Tagged Port
Table 9 Non-802.1Q Compliant Multiple VLAN Example
VLAN Name VID Untagged Port Tagged Port
Client_1 1 1.1, 2.2
Client_2 2 1.2, 2.2
Client_3 3 1.3, 2.2