Quick Reference Guide

320 | Spanning Tree (STP) Commands
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Default cost : auto
external-cost : auto
port-priorty : 128
Format spanning-tree mst <mstid> {{cost <1-200000000> | auto } |
{external-cost <1-200000000> | auto }| port-pri-
ority <0-240>}
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, i.e. 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, i.e. a pathcost value based on the 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, to the default value, i.e. 128.
Format
no spanning-tree mst <mstid> <cost | external-cost
| port-priority>
Mode Interface Config
spanning-tree hello-time
This command sets the Admin Hello Time parameter to a new value for the common and internal
spanning tree. The hellotime <value> is in whole seconds within a range of 1 to 10 with the value being
less than or equal to "(Bridge Max Age / 2) - 1".
Default 2
Format spanning-tree hello-time <1-10>
Mode Interface Config
no spanning-tree hello-time
This command sets the admin Hello Time parameter for the common and internal spanning tree to the
default value, i.e. 2.
Format no spanning-tree hello-time
Mode Interface Config