Spanning Tree Protocol (STP) Commands
8039_en_01
PHOENIX CONTACT
2-11
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. If you specify an
<mstid>
parameter
that corresponds to an existing multiple spanning tree instance, the configurations are done
for that multiple spanning tree instance. If you specify 0 (defined as the default CIST ID) as
the
<mstid>
, the configurations are done for the common and internal spanning tree
instance.
If you specify the
cost
option, the 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. You can set the path cost as a number in the range of 1 to 200000000
or
auto
. If you select
auto
the path cost value is set based on Link Speed.
If you specify the
external-cost
option, this command sets the external-path cost for MST
instance ‘0’ i.e. CIST instance. You can set the external cost as a number in the range of 1 to
200000000 or
auto
. If you specify auto, the external path cost value is set based on Link
Speed.
If you specify the
port-priority
option, 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.
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 you
specify an
<mstid>
parameter that corresponds to an existing multiple spanning tree
instance, you are configuring that multiple spanning tree instance. If you specify 0 (defined as
the default CIST ID) as the
<mstid>
, you are configuring the common and internal spanning
tree instance.
If the you specify
cost
, 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 path cost value based on the Link Speed.
If you specify
external-cost
, this command sets the external path cost for this port for mst ‘0’
instance, to the default value, i.e. a path cost value based on the Link Speed.
Default
•
cost—auto
•
external-cost—auto
•
port-priority—128
Format
spanning-tree mst
<
mstid> {{cost <1-200000000> | auto} | {external-cost <1-
200000000> | auto} | port-priority <0-240>}
Mode
Interface Config
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