xStack
® 
DGS-3120 Series Managed Switch CLI Reference Guide 
500 
 
Chapter 50  Multiple Spanning Tree 
Protocol (MSTP) Command 
List 
 
config stp {maxage <value 6-40> | maxhops <value 6-40> | hellotime <value 1-2> | forwarddelay 
<value 4-30> | txholdcount <value 1-10> | fbpdu [enable | disable] | nni_bpdu_addr [dot1d | 
create stp instance_id <value 1-15> 
config stp instance_id <value 1-15> [add_vlan | remove_vlan] <vidlist> 
delete stp instance_id <value 1-15> 
config stp mst_config_id {revision_level <int 0-65535> | name <string>} 
config stp mst_ports <portlist> instance_id <value 0-15> {internalCost [auto | <value 1-
200000000>] | priority <value 0-240>} 
config stp ports <portlist> {externalCost [auto | <value 1-200000000>] | hellotime <value 1-2> | 
migrate [yes | no] |edge [true | false | auto] | p2p [true | false | auto] | state [enable | disable] | 
restricted_role [true | false] | restricted_tcn [true | false] | fbpdu [enable | disable]} 
show stp ports {<portlist>} 
config stp priority <value 0-61440> instance_id <value 0-15> 
config stp trap {topo_change [disable | enable] | new_root [enable | disable]}(1) 
config stp version [mstp | rstp | stp] 
show stp instance {<value 0-15>} 
 
50-1  enable stp 
Description 
This command is used to enable STP globally. 
 
Format 
enable stp 
 
Parameters 
None. 
 
Restrictions 
Only Administrator, Operator and Power-User level users can issue this command. 
 
Example 
To enable STP: