Transition Networks SISGM1040-162D manual Rapid Spanning Tree, RSTP - System Configuration

Transition Networks SISGM1040-162D-LR

Rapid Spanning Tree

The Rapid Spanning Tree Protocol (RSTP) is an evolution of the Spanning Tree Protocol and provides for faster spanning tree convergence after a topology change. The system also supports STP and the system will auto detect the connected device that is running STP or RSTP protocol.

RSTP - System Configuration

￿User can view spanning tree information about the Root Bridge.

￿ User can modify RSTP state. After modification, click Apply button

￿RSTP mode: User must enable or disable RSTP function before configure the related parameters.

￿Priority (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. The value must be a multiple of 4096 according to the protocol standard rule.

￿Max 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.

￿Hello Time (1-10): The time that controls switch sends out the BPDU packet to check RSTP current status. Enter a value between 1 through 10.

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

NoteFollow the 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)

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