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(Revised 2010-11-15) Page 147 of 156
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