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6/28/2007 page 139 of 145
VLAN Configuration Examples
Example 1 – Basic understanding of port based 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 -- 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 Unknown MAC Port P2 Floods VLAN 2
Port P1 VID 4 MAC on port P2 Port P2 Strips VID off packet
Port P3 Untagged MAC on port P5 Port P5 Unicast Traffic
Port P3 Untagged Unknown MAC Port P4-P12 Floods VLAN 1
Port P3 VID 4 MAC on port P6 Port P6 Strips VID off packet
Example 2 – Basic understanding of tagged VLANs (Admit – Tagged Only)
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 Tagged Only
0
2 VLAN -2 -- P1-P2 YES Tagged Only
0
Receiving
Port #
Tagged VID
in packet
Destination
Address
Transmitting
Port #s
Notes
Port P1 Untagged MAC on port P2 -- Packet Discarded
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 MAC on port P5 Port P2 Floods VLAN 2
Port P3 Untagged MAC on port P1 -- Packet Discarded
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 P8 -- Packet Discarded
Port
No
Port
Name
PVID
1 P1 2
2 P2 2
3 P3 1
... … …
11 P11 1
12 P12 1
Port
No
Port
Name
PVID
1 P1 **
2 P2 **
3 P3 **
... … …
11 P11 **
12 P12 **