I-novative 2-Port OABR Multi-Media-Switch User Manual page 12

Configuration-Exemple 1: Two Port Groups
In the above example, the OABR-Media-Switch is turned into two independent media converters
by assigning two port groups - one containing USB and OABR1 and the other containing 100BTX
and OABR2.
Configuration-Exemple 2: Uni-Directional Traffic
The above example shows the setup of a uni-directional connection. Frames can be forwarded
from the 100BTX port to the USB port but not vice versa. Practically this will only work with a static
ARP table setup since ARP replies from USB to 100BTX are not forwarded. If there is a mirror port
used only for sniffing transmission from this port can be deactivated effectively setting up a stealth
sniffer. It is also possible to exclude a port completely from forwarding. Port Based VLANs are not
IEEE 802.1q compliant. VLAN tags have no influence of the port group assignment.
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