3.7.2 STP Bridge

This page lets you to have a clearer view in Spanning Tree parameters for whole switch.

Figure 3-6 The Spanning Tree Screen

Description of Parameters

STP State

When STP is enabled, it will dynamically detect network looping owing to mis-configuration of the network topology. The redundant connectors will be disabled to avoid looping of packets. Looping would often result in flooding of broadcast packets, halting the normal traffic.

Root Priority

Device priority is used in selecting the root device, root port, and designated port. The device with the highest priority becomes the STA root device. However, if all devices have the same priority, the device with the lowest MAC address will then become the root device.

Hello Time

The Hello time of the Spanning Tree field shows the number of seconds between the transmissions of Spanning Tree protocol configuration messages.

Forward Delay

The Forward Delay field shows the number of seconds a port waits before changing from its Spanning Tree Protocol learning and listening states to the forwarding state. This waiting is necessary so that other switches on the network ensure no loop is formed before they allow other port to forward packets.

Max Age

The maximum age time of the Spanning Tree shows the number of seconds the bridge waits without receiving Spanning Tree Protocol configuration message before attempting a reconfiguration.

Setup Procedures

Step 1: Select Spanning Tree state option, either to enable or disable it.

Step 2: Set Root Priority from 0 s – 65535 s, and Hello Time from 1 s – 10 s.

Step 3: Key in the Forward Delay Time, Maximum Age and Hello Time.

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