How to configure 802.1Q tag VLAN on TL-SG3109

A Virtual Local Area Network (VLAN) is a network topology configured according to a logical scheme rather than the physical layout. Hosts in the same VLAN communicate with each other as if they are in a LAN. However, hosts in different VLANs cannot communicate with each other directly.

Now let´s learn how to configure the tag VLAN on L2 managed Switches by the following example:

Network Topology:

Here we take TL-SG3109 which has 8 ports as an example.

TL-SG3109 connects to Internet via TL-R480T+ in port 1. The computers of Group3 connect to port2&3 of TL-SG3109, computers of Group4 connect to port 4&5 of it.

Purpose：

1 The computers from Group3 can communicate with each other.

2 The computers from Group4 can communicate with each other.

3 The computers of Group3 and Group4 can’t communicate with each other.

4 Both the Group3 and Group4 can go to Internet through TL-R480T+.

VLAN Configuration parameters:

To achieve the purpose, we configure 3 VLANs:VLAN3,VLAN4,VLAN5

-To achieve Purpose 1, we create the VLAN3 (VLAN ID=3):

Port: port1,2,3.

Port VLAN Mode: General

Port Membership: Untagged.

- To achieve Purpose 2, we create the VLAN4(VLAN ID=4):

Port: port1,4,5.

Port VLAN Mode: General

Port Membership: Untagged

In fact, we have already achieved the Purpose 3 by setting VLAN3 and VLAN4.

- To achieve Purpose 4, we create the VLAN5(VLAN ID=5):

Port: port1,2,3,4,5,

Port VLAN Mode: General

Port Membership: Untagged

-Setting PVID for each port.

Port	PVID
Port1	5
Port2	3
Port3	3
Port4	4
Port5	4

The frames forwarding by port 2&3 will be tagged based on PVID 3, so it will only accepted by ports belongs to VLAN 3.We can get the other PVIDs in a similar way.

Now ,let’s start to configure the switch：

Part I:Setting Port VLAN Mode

Step 1:Please login the configuration page of the TL-SG3109 and go to:

Bridging Config->VLAN->Membership->Interface Settings- Port VLAN Mode:

Step2:Please adjust the mode from Access to General