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6.3.22 Set interface priority for MST instance
[Syntax]
spanning-tree instance instance-id priority priority
no spanning-tree instance instance-id priority
[Parameter]
instance-id : <1-15>
ID of MST instance specified for the applicable interface
priority : <0-240> (multiple of 16)
Priority value
[Initial value]
spanning-tree instance instance-id priority 128
[Input mode]
interface mode
[Description]
Sets the priority for the applicable interface in the MST instance.
If this command is executed with the "no" syntax, the setting returns to the default.
[Note]
This command can be specified only for LAN/SFP+ port and logical interface.
It is not possible to specify this command for a LAN/SFP+ port that is associated to a logical interface.
If a LAN/SFP+ port is associated with a logical interface, the setting of this command for the corresponding LAN/SFP+ port
returns to the default.
[Example]
Set LAN port #1 MST instance #2 to a priority of 16.
SWP2(config)#interface port1.1
SWP2(config-if)#spanning-tree instance 2
SWP2(config-if)#spanning-tree instance 2 priority 16
6.3.23 Set interface path cost for MST instance
[Syntax]
spanning-tree instance instance-id path-cost path-cost
no spanning-tree instance instance-id path-cost
[Parameter]
instance-id : <1-15>
ID of MST instance specified for the applicable interface
path-cost : <1-200000000>
Path cost value
[Initial value]
Use the following values according to the link speed of the interface.
Link speed Path cost value
1000Mbps 20000
100Mbps 200000
10Mbps 2000000
For a logical interface, the path cost value is calculated based on totaling the link speed of each associated LAN/SFP+ port.
[Input mode]
interface mode
202 | Command Reference | Layer 2 functions