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270 Spanning Tree (STP) Commands
no spanning-tree mst
If the “cost” token is specified, this command sets the path cost for this port within a multiple
spanning tree instance or the common and internal spanning tree instance, depending on the
mstid parameter. The pathcost can be specified as a number in the range of 1 to 200000000 or
auto. If "auto" is specified, the pathcost value will be set based on Link Speed.
If the “external-cost” token is specified, this command sets the external-path cost for MST
instance “0” in other words, CIST instance. The external pathcost can be specified as a
number in the range of 1 to 200000000 or auto. If "auto" is specified, the external pathcost
value will be set based on Link Speed.
If the “port-priority” token is specified, this command sets the priority for this port within a
specific multiple spanning tree instance or the common and internal spanning tree instance,
depending on the
mstid parameter. The port-priority value is a number in the range of 0 to
240 in increments of 16.
Syntax
spanning-tree mst mstid {{cost 1-200000000 | auto} | port-priority 0-240}
no spanning-tree mst
Default
cost: auto; external-cost: auto; port-priorty: 128
Mode
Interface Config
no spanning-tree mst
This command sets the Path Cost or Port Priority for this port within the multiple spanning
tree instance or in the common and internal spanning tree to the respective default values. If
the
mstid parameter corresponds to an existing multiple spanning tree instance, then the
configurations are done for that multiple spanning tree instance. If however 0 (defined as the
default CIST ID) is passed as the
mstid, then the configurations are performed for the
common and internal spanning tree instance.
If the “cost” token is specified, this command sets the path cost for this port within a multiple
spanning tree instance or the common and internal spanning tree instance, depending on the
mstid parameter, to the default value, in other words, a pathcost value based on the Link
Speed.
If the “external-cost” token is specified, this command sets the external path cost for this port
for mst “0” instance, to the default value, in other words, a pathcost value based on the Link
Speed.
Related
Commands
interface Identifies an interface and enters the Interface Config mode.
interface range Defines an interface range and accesses the Interface Range mode