User`s manual

PT-G7509 User’s Manual Featured Functions
3-53
The PT-G7509 supports two types of VLAN port settings:
y Access Port: The port connects to a single device that is not tagged. The user must define the
default port PVID that assigns which VLAN the device belongs to. Once the ingress packet of
this Access Port egresses to another Trunk Port (the port nePT all packets to carry tag
information), the PT-G7509 will insert this PVID into this packet to help the next 802.1Q
VLAN switch recognize it.
y Trunk Port: The port connects to a LAN that consists of untagged devices/tagged devices
and/or switches and hubs. In general, the traffic of the Trunk Port must have a Tag. Users can
also assign PVID to a Trunk Port. The untagged packet on the Trunk Port will be assigned the
port default PVID as its VID.
The following section illustrates how to use these ports to set up different applications.
Sample Applications of VLANs Using the PT-G7509
Switch A
Device A
Device B
HUB
Device C
Device D
Device E
Device F
Device G
Device H
Device I
Switch B
VLAN 5 Untagged Device
VLAN 2 Untagged Device
VLAN 2 Untagged Device
VLAN 3 Tagged Device VID 3
VLAN 4 Tagged Device VID 4
VLAN 2 Untagged Device
VLAN 5 Untagged Device
VLAN 4 Untagged Device
VLAN 3 Untagged Device
Port 1: Access
Port PVID 5
Port 4: Access
Port PVID 2
Port 3: Trunk Port,
PVID 1
Port 2: Trunk Port PVID 2,
Fixed VLAN Tagged=3, 4
Port 6: Access
Port PVID 5
Port 7: Access
Port PVID 4
Port 5: Access
Port PVID 3
STAT
FAULT
PWR1
MASTER
PWR2
COUPLER
LNK/ACT SPEED FDX/HDX
RING PORT
COMUPLER 
PORT
MODE
1 2 3 4 5 6 7 8 9
STAT
FAULT
PWR1
MASTER
PWR2
COUPLER
LNK/ACT SPEED FDX/HDX
RING PORT
COMUPLER 
PORT
MODE
1 2 3 4 5 6 7 8 9
In this application,
y Port 1 connects a single untagged device and assigns it to VLAN 5; it should be configured as
Access Port with PVID 5.
y Port 2 connects a LAN with two untagged devices belonging to VLAN 2. One tagged device
with VID 3 and one tagged device with VID 4. It should be configured as Trunk Port with
PVID 2 for untagged device and Fixed VLAN (Tagged) with 3 and 4 for tagged device. Since
each port can only have one unique PVID, all untagged devices on the same port can only
belong to the same VLAN.
y Port 3 connects with another switch. It should be configured as Trunk Port GVRP protocol
will be used through the Trunk Port.
y Port 4 connects a single untagged device and assigns it to VLAN 2; it should be configured as
Access Port with PVID 2.
y Port 5 connects a single untagged device and assigns it to VLAN 3; it should be configured as
Access Port with PVID 3.
y Port 6 connect a single untagged device and assigns it to VLAN 5; it should be configured as
Access Port with PVID 5.
y Port 7 connects a single untagged device and assigns it to VLAN 4; it should be configured as
Access Port with PVID 4.