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TL-SL3428_V3_User_Guide - TP-Link

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Port Status:LAG:this bridge to the Root Bridge and forwards packets to the root.• Designated Port: Indicates the port that forwards packets to adownstream network segment or switch.• Master Port: Indicates the port that connects a MST region to thecommon root. The path from the master port to the common rootis the shortest path between this MST region and the commonroot.• Alternate Port: Indicates the port that can be a backup port of aroot or master port.• Backup Port: Indicates the port that is the backup port of adesignated port.• Disabled: Indicates the port that is not participating in the S<strong>TP</strong>.Displays the working status of the port.• Forwarding: In this status the port can receive/forward data,receive/send BPDU packets as well as learn MAC address.• Learning: In this status the port can receive/send BPDU packetsand learn MAC address.• Blocking: In this status the port can only receive BPDU packets.• Disconnected: In this status the port is not participating in the S<strong>TP</strong>.Displays the LAG number which the port belongs to.Note:1. Configure the ports connected directly to terminals as edge ports and enable the BPDUprotection function as well. This not only enables these ports to transit to forwarding staterapidly but also secures your network.2. All the links of ports in a LAG can be configured as point-to-point links.3. When the link of a port is configured as a point-to-point link, the spanning tree instancesowning this port are configured as point-to-point links. If the physical link of a port is not apoint-to-point link and you forcibly configure the link as a point-to-point link, temporary loopsmay be incurred.7.3 MS<strong>TP</strong> InstanceMS<strong>TP</strong> combines VLANs and spanning tree together via VLAN-to-instance mapping table(VLAN-to-spanning-tree mapping). By adding MS<strong>TP</strong> instances, it binds several VLANs to aninstance to realize the load balance based on instances.Only when the switches have the same MST region name, MST region revision andVLAN-to-Instance mapping table, the switches can be regarded as in the same MST region.The MS<strong>TP</strong> Instance function can be implemented on Region Config, Instance Config andInstance Port Config pages.7.3.1 Region ConfigOn this page you can configure the name and revision of the MST regionChoose the menu Spanning Tree→MS<strong>TP</strong> Instance→Region Config to load the following page.79

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