Figure 7-16. STP Global Settings

Spanning Tree State — Enables or disables Spanning Tree on the device. The possible field values are:

Enable — Enables Spanning Tree

Disable — Disables Spanning Tree

STP Operation Mode — The STP mode by which STP is enabled on the device. The possible field values are:

Classic STP — Enables Classic STP on the device. This is the default value.

Rapid STP — Enables Rapid STP on the device.

BPDU Handling — Determines how BPDU packets are managed when STP is disabled on the port/ device. BPDUs are used to transmit spanning tree information. The possible field values are:

Filtering — Filters BPDU packets when spanning tree is disabled on an interface.

Flooding — Floods BPDU packets when spanning tree is disabled on an interface. This is the default value.

Port Cost Default Values — Determines the Spanning Tree default path cost method. The possible field values are:

Short — Specifies 1 through 65535 range for port path costs. This is the default value.

Long — Specifies 1 through 200000000 range for port path costs.

Dell PowerConnect 28xx Systems User Guide

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Dell 28XX manual 115, STP Global Settings