TP-Link TL-SG3109 Switch User Manual


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Section 9. Conguring the Spanning Tree Protocol
The Spanning Tree Protocol (STP) provides tree topography for any arrangement of bridges. STP also provides a single
path between end stations on a network, eliminating loops. Loops occur when alternate routes exist between hosts. Loops
in an extended network can cause bridges to forward trafc indenitely, resulting in increased trafc and reducing network
efciency.
The TP-Link device supports the following STP versions:
Classic STP — Provides a single path between end stations, avoiding and eliminating loops.
For more information on conguring Classic STP, see Conguring the Classic STP.
Rapid STP — Detects and uses network topologies that provide faster convergence of the spanning tree, without
creating forwarding loops.
For more information on conguring Rapid STP, see Conguring the Rapid STP.
Multiple STP — Provides various load balancing scenarios. For example, if port A is blocked in one STP instance, the
same port can be placed in the Forwarding State in another STP instance.
For more information on conguring Multiple STP, see Conguring the Multiple STP.
This section contains the following topics:
Conguring the Classic STP
Conguring the Rapid STP
Conguring the Multiple STP
9.1 Conguring the Classic STP
This section describes the following topics:
Dening STP Properties
Dening STP Interface Settings
9.1.1 Dening STP Properties
The STP Properties Page contains parameters for enabling STP on the device.
To dene STP properties:
1. Click System > Bridging Info > Spanning Tree > STP
> Properties. The STP Properties Page opens:
Figure 84: STP Properties Page
The STP Properties Page contains the following elds:
Spanning Tree State — Indicates whether STP is
enabled on the device. The possible eld values are:
– Enable — Enables STP on the device.
– Disable — Disables STP on the device.
STP Operation Mode — Species the STP mode that
is enabled on the device. The possible eld values are:
– Classic STP — Enables Classic STP on the device.
This is the default value.
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