Planet Technology SGSW-2402 - Manual (Page 18)

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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.