TP-Link T1600G-18TS Configuration Manual page 255

Configuring Spanning Tree
MST-Instance
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0
5
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Switch(config-mst)#end
Switch#copy running-config startup-config
 Configuring the Parameters on Ports in Instance
Follow these steps to configure the priority and path cost of ports in the specified instance:
Step 1 configure
Enter global configuration mode.
Step 2 interface {gigabitEthernet port | range gigabitEthernet port-list ] [port-channel port-channel |
range port-channel port-channel-list }
Enter interface configuration mode.
Step 3 spanning-tree mst instance instance-id {[ port-priority pri ] | [ cost cost ]}
Configure the priority and path cost of ports in the specified instance.
instance-id:
pri:
16, and the default value is 128. The port with the lower value has the higher priority. In the
same condition, the port with the highest priority will be elected as the root port in the desired
instance.
cost:
which means the port calculates the path cost automatically according to the port's link speed.
It is the root path cost from the port to the root bridge in the specified instance. The port with
the lowest path cost will be elected as the root port in the desired instance.
Step 4 show spanning-tree mst { configuration [ digest ] | instance instance-id [ interface [
fastEthernet port | gigabitEthernet port | port-channel lagid ] ] }
(Optional) View the related information of MSTP Instance.
digest:
instance-id:
port:
lagid:
Step 5 end
Return to privileged EXEC mode.
Vlans-Mapped
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1,7-4094
2-6,
Specify the instance ID, the valid values ranges from 1 to 8.
Specify the priority of the port. The valid values are from 0 to 240, which are divisible by
Specify the path cost of the port. The valid values are from 0 to 2000000. By default, it is 0,
Display digest calculated by instance-vlan map.
Specify the Instance ID desired to view, ranging from 1 to 8.
Specify the port number.
Specify the ID of the LAG.
MSTP Configurations
Configuration Guide 232