Manual
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174 
no spanning-tree mode 
Port Mode 
spanning-tree mcheck 
Force port migrate to run under MSTP. 
2.  Configure instance parameters 
Command 
Explanation 
Global Mode 
spanning-tree mst <instance-id> priority 
<bridge-priority> 
no spanning-tree mst <instance-id> 
priority 
Set bridge priority for specified instance. 
spanning-tree priority <bridge-priority> 
no spanning-tree priority 
Configure  the  spanning-tree  priority  of  the 
switch. 
Port Mode 
spanning-tree mst <instance-id> cost 
<cost> 
no spanning-tree mst <instance-id> cost 
Set port path cost for specified instance. 
spanning-tree mst <instance-id> port-
priority <port-priority> 
no spanning-tree mst <instance-id> port-
priority 
Set port priority for specified instance. 
spanning-tree mst <instance-id> 
rootguard 
no spanning-tree mst <instance-id> 
rootguard 
Configure  currently  port  whether  running 
rootguard  in  specified  instance,  configure  the 
rootguard port can’t turn to root port. 
spanning-tree rootguard 
no spanning-tree rootguard 
Configure  currently  port  whether  running 
rootguard  in  instance  0,  configure  the 
rootguard port can’t turn to root port. 
spanning-tree [mst <instance-id>] 
loopguard 
no spanning-tree [mst <instance-id>] 
loopguard 
Enable  loopguard  function  on  specified 
instance,  the  no  command  disables  this 
function. 
3.  Configure MSTP region parameters  
Command 
Explanation 
Global Mode 
spanning-tree mst configuration 
Enter  MSTP  region  mode.  The  no 










