Non-802.1q compliant multiple vlan mode – Allied Telesis AT-S62 User Manual
Page 449
AT-S62 User’s Guide
Section V: Virtual LANs
449
This highly segmented configuration is useful in situations where traffic
generated by each end node or network segment connected to a port
on the switch needs to be kept separate from all other network traffic,
while still allowing access to an uplink to a WAN. Unicast traffic received
by the uplink port is effectively directed to the appropriate port and end
node, and is not directed to any other port on the switch.
The 802.1Q Multiple VLAN configuration is appropriate when the device
connected to the uplink port is IEEE 802.1Q compatible, meaning that it
can handle tagged packets.
When you select the 802.1Q-compliant VLAN mode, you are asked to
specify the Uplink VLAN port. You can specify only one uplink port. The
switch automatically configures the ports into the separate VLANs.
Note
The uplink VLAN is the management VLAN. Any remote
management of the switch must be made through the uplink VLAN.
Non-802.1Q
Compliant
Multiple VLAN
Mode
Unlike the 802.1Q-compliant VLAN mode, which isolates port traffic by
placing each port in a separate VLAN, this mode forms one VLAN with a
VID of 1 that encompasses all ports. Traffic isolation is established
through port mapping. The result, however, is the same. Ports are
permitted to forward traffic only to the designated uplink port and to no
other port, even when they receive a broadcast packet.
Client_VLAN_16
16
16
25
Client_VLAN_17
17
17
25
Client_VLAN_18
18
18
25
Client_VLAN_19
19
19
25
Client_VLAN_20
20
20
25
Client_VLAN_21
21
21
25
Client_VLAN_22
22
22
25
Client_VLAN_23
23
23
25
Client_VLAN_24
24
24
25
Uplink_VLAN
25
25
Client_VLAN_26
26
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25
VLAN Name
VID
Untagged Port
Tagged Port