TP-Link T1600-28TS, Справочное руководство CLI

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Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
Example
Enable the STP function for port 1/0/2:
T1600G-52TS(config)# interface gigabitEthernet 1/0/2
T1600G-52TS(config-if)# spanning-tree
26.4 spanning-tree common-config
Description
The spanning-tree common-config command is used to configure the
parameters of the ports for comparison in the CIST and the common
parameters of all instances. To return to the default configuration, please use
no spanning-tree common-config command. CIST (Common and Internal
Spanning Tree) is the spanning tree in a switched network, connecting all
devices in the network.
Syntax
spanning-tree common-config [ port-priority
pri
] [ ext-cost
ext-cost
]
[ int-cost int-cost ] [ portfast { enable | disable }] [ point-to-point { auto | open
| close }]
no spanning-tree common-config
Parameter
pri
—— Port Priority, which must be multiple of 16 ranging from 0 to 240. By
default, the port priority is 128. Port Priority is an important criterion on
determining if the port connected to this port will be chosen as the root port.
In the same condition, the port with the highest priority will be chosen as the
root port. The lower value has the higher priority.
ext-cost
—— External Path Cost, which is used to choose the path and
calculate the path costs of ports in different MST regions. It is an important
criterion on determining the root port. The lower value has the higher priority.
It ranges from o to 2000000. By default, it is 0 which is mean auto.
int-cost
—— Internal Path Cost, which is used to choose the path and
calculate the path costs of ports in an MST region. It is an important criterion
on determining the root port. The lower value has the higher priority. By