3Com PathBuilder S200 Series Owner's Manual page 64

Bridge Filtering
MAC Filtering
Process
60
Figure 30 shows the MAC Filtering process.
Link Record or Entry
NONE
Filtering Action
Pass frame
without
filtering
Check MAC Address
Filter Table for match
of frame MAC Address
YES
Address in MAC
Apply Table Filter:
PASS or
BLOCK
Filtering Action
PASS
Figure 30. MAC Address Filtering Action
Check Bridge
MAC Address
Setting?
PASS or BLOCK
Frame MAC
Address Filter
Table?
NO
Check Bridge
Link Table
MAC Address BLOCK
Setting?
Block the
frame
Pass the
frame
Bridging