PLANET ISW-1022MPT - Manual (Page 97)

User’s Manual of ISW-1022M Series and ISW-1033MT
97
Priority (0-61440):
The switch with the lowest value has the highest priority and is selected as the
root. If the value is changed, the user must reboot the switch.
The value must be a multiple of 4096 according to the protocol standard rule.
Max Age (6-40):
The number of seconds a switch 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 the switch to send 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 states to the forwarding state.
Enter a value between 4 through 30.
Follow the rule as below 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)