N-Tron 708M12 user manual Example 3 Basic understanding of tagged VLANs Admit All

Example 3 – Basic understanding of tagged VLANs (Admit – All)

Receiving	Tagged VID	Destination	Transmitting	Notes
Port #	in packet	Address	Port #s
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

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