B&B Electronics EIR618-2SFP-T manual Rapid Spanning Tree, Rstp System Configuration

Rapid Spanning Tree

The Rapid Spanning Tree Protocol (RSTP) is an evolution of Spanning Tree Protocol (STP). It provides a faster spanning tree convergence after a topology change. The switch will auto detect a device that is running STP or RSTP protocol.

RSTP - System Configuration

„ After modification, click Apply

¾RSTP mode: Enable or disable the RSTP.

¾Priority (0-61440):a value used to identify the root bridge. The bridge with the lowest value has the highest priority and is selected as the root. If the value changes, the switch must be rebooted. The value must be multiple of 4096.

¾Max Age (6-40): The number of seconds a bridge waits without receiving Spanning-tree Protocol configuration messages before attempting a reconfiguration. Enter a value between 6 through 40

¾Hello Time (1-10): The time that controls when, the switch sends out the BPDU packet to check RSTP status. Enter a value between 1 and 10.

¾Forward Delay Time (4-30):the number of seconds a port waits before changing from its Rapid Spanning Tree Protocol learning and listening state to the forwarding state. Enter a value between 4 and 30.

[NOTE] Follow this rule to configure the MAX Age, Hello Time, and Forward Delay Time.

2 x (Forward Delay Time value –1) > = Max Age value >= 2 x (Hello Time value +1)

80	Manual Documentation Number: EIR618-2SFP-T_5107m
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