Kontron AT890X Full-Size CLI - Manual (Page 44)

Switching Commands AT8901/2/3
AT8901/2/3 CLI Reference Manual Page 2 - 10
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.
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
2.2.11.1 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.
If you specify port-priority, 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.
Format
no spanning-tree mst <mstid> <cost | external-cost | port-
priority>
Mode Interface Config
2.2.12 spanning-tree mst instance
This command adds a multiple spanning tree instance to the switch. The parameter
<mstid> is a number within a range of 1 to 4094, that corresponds to the new instance
ID to be added. The maximum number of multiple instances supported by the switch is
4.
Default none
Format spanning-tree mst instance <mstid>