Fortinet 5003A Manuale Utente

Use this command to change the spanning tree cost and priority for each FortiSwitch-5003A interface 
in a spanning tree instance. When you add a new spanning tree instance the cost of each interface in 
the spanning tree instance is set to 0 and the priority is set to 128. 

config stp-port

set 

set 

end

This example shows how to add spanning tree instance 10 with priority 4096 and with a VLAN ID 
range that includes 1, 200-210, and 23, 54, and 68. This instance also changes the cost and priority of 
interface slot-13.

config switch fabric-channel stp instance

edit 10

set priority 4096
set vlan-range 1,200-210,23,54,68

config stp-port

edit slot-13

set cost 2000
set priority 16

end

end

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edit <interface_name>

Enter the name of the FortiSwitch-5003A fabric channel 

interface to configure. You cannot edit an interface that has 

been added to a trunk. Edit the interface to change its spanning 

tree cost and priority.

cost <cost_int>

Enter the cost for the FortiSwitch-5003Ainterface in the range 

from 1 to 200000000. Spanning tree selects the interface with 

the lowest cost.
Suggested values for different interface speeds:
• 10 Mbps: 20000000
• 100 Mbps: 200000
• 1 Gbps: 20000
• 10 Gbps: 2000

0

priority <priority_value> The priority value of the FortiSwitch-5003A interface in the 

spanning tree instance. Spanning tree selects the interface with 

the lowest priority.
The <priority_value> range is 0 to 240 in increments of 

16. Valid priority values are 0, 16, 32, 64, 80, 96, 112, 128, 144, 

160, 176, 192, 208, 224, and 240. 

128