TP-Link TL-SG2224WEB, TL-SG2216WEB manual MTU Vlan

TL-SG2216WEB/TL-SG2224WEB Web Smart Gigabit Switch Family User's Guide

1) Port VLAN

VLANs are divided basic on ports.

2) IEEE802.1Q Tag VLAN

The IEEE802.1Q protocol defines a new format of the frame; it adds a tag header in the original Ethernet frame, as follows:

Figure 4-1. IEEE802.1Q frame

IEEE802.1Q 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.

3) MTU VLAN

MTU VLAN (Multi-Tenant Unit VLAN) define an uplink port, the uplink port will buildup 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 ports but other ports can’t communicate with each other.

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