!Configure the priority of network bridge in instance 2 is 4096
QTECH(config)#spanning-tree mst instance 2 priority 4096
7.2.6 spanning-tree mst external cost
Use spanning-tree mst external cost command to configure external cost of port.
spanning-tree mst external cost external-cost
no spanning-tree mst external cost
【Parameter】
external-cost:external cost of port which is in the range of 1-200000000.
【Default】
The external cost of port is 200000.
【Command configuration mode】
Interface configuration mode
【Example】
!Configure the external cost of port 2 to be 200
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