TP-LINK JetStream TL-SG1024DE Data Sheet

 

There are 3 types of VLAN modes supported in the switch: 

1. MTU 

VLAN 

MTU VLAN (Multi-Tenant Unit VLAN) defines an uplink port which will build up several VLANs with 
each of the other ports. Each VLAN contains two ports, the uplink port and one of the other ports in 
the switch, so the uplink port can communicate with any other port but other ports cannot 
communicate with each other. 

2.  Port Based VLAN 

VLANs are divided based on ports. By default, the Port Based VLAN is enabled. 

3. 802.1Q 

VLAN 

The IEEE 802.1Q protocol defines a new format of the frame; it adds a Tag header in the original 
Ethernet frame, as follows: 

 

Figure 5-2 IEEE 802.1Q frame 

VLAN tags in the packets are necessary for the switch to identify packets of different VLANs. The 
switch works at the data link layer in OSI model and it can identify the data link layer encapsulation 
of the packet only, so you can add the VLAN tag field into the data link layer encapsulation for 
identification.  

IEEE 802.1Q Tag VLAN is divided by VLAN ID (VID). On receiving a frame, the switch checks the 
VID in the Tag header of the frame to decide which VLAN it belongs to. If the receiving frame 
doesn’t contain the Tag header, the switch will assign a Tag to the frame, using the PVID of the 
port as its VID. 

In this User Guide, the tagged packet refers to the packet with VLAN tag whereas the untagged 
packet refers to the packet without VLAN tag. 

The VLAN module is mainly for VLAN configuration, including four submenus: MTU VLAN, Port 
Based VLAN, 802.1Q VLAN and 802.1Q PVID Setting. 

On this page you can choose to enable MTU VLAN mode and configure VLANs.   

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