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This command sets the Path Cost, Port Priority or External Path Cost for this port within the multiple
spanning tree instance or in the common and internal spanning tree. If the <0-4094> 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 <0-4094>,
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 <0-4094> 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.
Syntax
spanning-tree mst <0-4094> cost {<1-200000000> | auto}
no spanning-tree mst <0-4094> cost
<0-4094> - multiple spanning tree instance ID.
no - This command sets the Path Cost for this port within the multiple spanning tree instance or in the
common and internal spanning tree to the respective default values. If the <0-4094> 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
<0-4094>, 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 <0-4094>
parameter, to the default value, that is, a pathcost value based on the Link Speed.
Default Setting
Cost : auto
Command Mode
Interface Config
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