TP-Link TL-SL2218WEB User Guide - Page 26
VLAN Mode
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TL-SG2109WEB/TL-SL2210WEB/TL-SL2218WEB/TL-SL2428WEB/TL-SL2452WEB Web Smart Gigabit Switch Family User's Guide traffic is generated. 4.4.1 VLAN Mode There are 3 types of VLAN mode support in the switch: 1) Port VLAN VLANs are divided basic on ports. 2) IEEE802.1Q Tag VLAN The IEEE802.1Q protocol define a new format of the frame, it add a tag header in the original Ethernet frame, as follow: Figure 4-1. IEEE802.1Q frame IEEE802.1Q Tag VLAN is divided by VLAN ID (VID). On receiving a frame, switch check 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, 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 19