B&B Electronics EIR608-xSFP Network Hardware User Manual


 
Manual Documentation Number: EIR608-xSFP_0708m 73
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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
RSTP state can be modified. After modification, click
Apply
.
¾ RSTP mode: Enable or disable the RSTP.
¾ 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. If the value changes, the switch must be rebooted. The
value must be multiple of 4096.
¾ 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
¾ Hello 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.
¾ Forward 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)