22
8. VLAN Setting
A Virtual LAN (VLAN) is a logical network grouping that limits the broadcast domain, which
would allow you to isolate network traffic, so only the members of the same VLAN will receive
traffic from the ones of the same VLAN. Basically, creating a VLAN from a switch is logically
equivalent of reconnecting a group of network devices to another Layer 2 switch. However, all
the network devices are still plugged into the same switch physically.
VLAN Mode
You may select the VLAN Mode of the switch.
Port-based VLAN
is for separating traffic only on this single switch. There is no handover of
network traffic within VLAN groups to other switches. For the handover to other switches use
Tag Based VLAN
. In VLAN Mode you can switch from Tag to Port Based VLAN. Port Based
VLAN is the default mode.
Figure 8-1
After having switched to Tag Based VLAN Mode, the screen changes. On this screen you can
now define and configure your Up- and Downlink ports. These are important since here the
handover between the switches of your network takes place.
Tag Based VLAN Mode
Figure
8-2
