WF200
802.11g Wireless Router
41
Port-Based VLAN: each physical switch port is configured with an access list specifying membership
in a set of VLANs.
ATM VLAN-using LAN Emulation(LANE) protocol to map Ethernet packets into ATM cells and
deliver then to their destination by converting an Ethernet MAC address into an ATM address.
The key for the IEEE 802.1Q to perform the above functions is in its tags. 802.1Q-compliant switch
ports can be configure to transmit tagged or untagged frames. A tag field containing VLAN (and/or
802.1p priority) information can be inserted into an Ethernet frame. If a port has an 802.1Q-compliant
device attached (such as another switch), these tagged frames can carry VLAN membership
information between switches, thus letting a VLAN span multiple switches. However, it is important to
ensure ports with non-802.1Q-compliant devices attached are configured to transmit untagged frames.
Many NICs for PCs and printers are not 802.1Q-compliant. If they received a tagged frame, they will
not understand the VLAN tab and will drop the frame. Also, the maximum legal Ethernet frame size
for tagged frames was increased in 802.1Q (and its companion, 802.3ac) from 1518 to 1522 bytes. This
could cause network interface cards and older switches to drop tagged frames as “oversized”
Î
Assign VLAN PVID for each interface: You can assign ATM VC, Ethernet (LAN) port, and
Wireless LAN port’s PVID in this section.
Î
Define VLAN Group: Based on each VLAN group, you can configure each group’s VLAN setting.
You can configure up to 8 VLAN settings.