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You can configure MSTP parameters, then click Apply button to set the values. Such as following screen.
You can select STP state item to enable MSTP. If you want to disable MSTP, please cancel the item. Default value of STP sate is
disabled.
You can select STP Debug item to output MSTP debug information. If you want to disable the debug, please cancel the item.
Default value of STP Debug is disabled.
STP protocol version item has two values for you to choose. If you want the protocol version to be STP, you can choose STP. If
you want the protocol version to be MSTP, you can choose MSTP. Default value of STP protocol version is MSTP.
Parameter
Description
Priority
You can change priority value, A value used to identify the root bridge. The bridge
with lowest value has the highest priority and is selected as the root. Value range <0‐
61440>, the value must be in steps of 4096. Default value is 32768.
Max Age
You can change Max Age value. The maximum age of received protocol information
before it is discarded. Value range <6‐40>. Default value is 20.
Hello Time
You can change Hello time value. The time interval between the transmission of
Configuration BPDUs by a Bridge that is attempting to become the Root or is the
Root. Value range <1‐10>. Default value is 2.
Forward Delay
You can change forward delay time. The time spent by a Port in the Listening State
time
and the Learning State before moving to the Learning or Forwarding State,
respectively. It is also the value used for the ageing time of dynamic entries in the
Filtering Database, while received BPDU indicate a topology change. Value range <4‐
30>. Default value is 15.
NOTE: The above parameters must enforce the following relationships:
2*(hello‐time + 1) <= maximum‐age <= 2*(forward‐delay ‐ 1)
The following parameters can be configured on each CIST port, click Apply button to set the values.
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