VS-2400S 24 Ports VDSL2 Managed IP DSLAM with POTS splitter USER
’S MANUAL Ver.A3
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Port-based VLANs
are VLANs where the packet forwarding decision is made based on the destination MAC address and its
associated port. You must define the outgoing ports allowed for each port when you use port-based VLANs. In port-based VLANs,
the packets received from one port can only be sent to the ports which are configured to the same VLAN. As shown in the
following figure, the switch administrator configured port 1~2 as VLAN 1 and port 3~4 as VLAN 2. The packets received from
port 1 can only be forwarded to port 2. The packets received from port 2 can only be forwarded to port 1. That means the
computer A can send packets to computer B, and vice versa. The same situation also occurred in VLAN 2. The computer C and D
can communicate with each other. However, the computers in VLAN 1 can not see the computers in VLAN 2 since they belonged
to different VLANs.
IEEE 802.1Q (tag) -based VLANs
enable the Ethernet functionality to propagate tagged packets across the bridges and provides
