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6/28/2007 page 140 of 145
Example 3 – Basic understanding of tagged VLANs (Admit – All)
VLAN Configuration View Ports Configuration View
VLAN Status : Enable
VLAN ID
VLAN Name
Untagged Port(s)
Tagged Port(s)
Mgmt Port
Admit
Mirror Port
1
Default VLAN
-- P3-P12 YES All 0
2 VLAN -2 -- P1-P2 YES All 0
Receiving
Port #
Tagged VID
in packet
Destination
Address
Transmitting
Port #s
Notes
Port P1 Untagged MAC on port P2 Port P2 Adds VID 2 to packet
Port P1 VID 2 MAC on port P2 Port P2 Unicast Traffic
Port P1 VID 4 MAC on port P2 -- Packet Discarded
Port P1 VID 2 Unknown MAC Port P2 Floods VLAN 2
Port P3 Untagged Unknown MAC Port P4-P12 Adds VID 1 to packet & Floods VLAN 1
Port P3 VID 1 MAC on port P6 Port P6 Unicast Traffic
Port P3 VID 1 Unknown MAC Port P4-P12 Floods VLAN 1
Port P3 VID 4 MAC on port B2 -- Packet Discarded
Example 4 – Basic understanding of Hybrid VLANs
VLAN Configuration View Ports Configuration View
VLAN Status : Enable
VLAN ID
VLAN Name
Untagged Port(s)
Tagged Port(s)
Mgmt Port
Admit
Mirror Port
1
Default VLAN
P3-P12 -- YES All 0
2 VLAN -2 P1-P2 P3-P4 YES All 0
Receiving
Port #
Tagged VID
in packet
Destination
Address
Transmitting
Port #s
Notes
Port P1 Untagged MAC on port P2 Port P2 Unicast Traffic
Port P1 Untagged MAC on port P3 Port P3 Adds VID 2 in the packet
Port P1 VID 4 MAC on port P2 -- Packet Discarded
Port P1 VID 4 MAC on port P3 -- Packet Discarded
Port P1 VID 2 MAC on port P2 Port P2 Strips VID off packet
Port P3 Untagged MAC on port P6 Port P6 Unicast Traffic
Port P3 Untagged Unknown MAC Port P4-P12 Floods VLAN 1
Port P3 VID 4 MAC on port P5 -- Packet Discarded
Port P3 VID 4 MAC on port P4 -- Packet Discarded
Port P3 VID 2 MAC on port P4 Port P4 Strips VID off packet
Port P3 VID 2 MAC on port P1 Port P1 Strips VID off packet
Port
No
Port
Name
PVID
1 P1 **
2 P2 **
3 P3 **
... … …
11 P11 **
12 P12 **
Port
No
Port
Name
PVID
1 P1 2
2 P2 2
3 P3 1
… … …
11 P11 1
12 P12 1