B&B Electronics 712FX4-SC_ST - Manual - Manual (Page 148)

(Revised 2010-2-24) Page 148 of 154
Example 3 – Basic understanding of tagged VLANs (Admit – All)
Receiving
Port # Tagged VID
in packet Destination
Address Transmitting
Port #s Notes
TX1 Untagged MAC on port TX2 TX2 Adds VID 2 to packet
TX1 VID 2 MAC on port TX2 TX2 Unicast Traffic
TX1 VID 4 MAC on port TX2 -- Packet Discarded
TX1 VID 2 Unknown MAC TX2 Floods VLAN 2
TX3 Untagged Unknown MAC TX4-TX8 Adds VID 1 to packet & Floods VLAN 1
TX3 VID 1 MAC on port TX6 TX6 Unicast Traffic
TX3 VID 1 Unknown MAC TX4-TX8 Floods VLAN 1
TX3 VID 4 MAC on port TX7 -- Packet Discarded