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286 Configuring Switch Information
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Path Cost (1-200000000)
— Amount the LAG contributes to the root path cost. The path cost is
adjusted to a higher or lower value, and is used to forward traffic when a path is being rerouted.
The path cost has a value of 1 to 200000000.
Default Path Cost
— Indicates if the default path cost is used. The possible LAG path cost
default
values are:
Long Method for LAG
—
20,000
Short Method for LAG
—
4
Priority (0-240, in steps of 16)
— Priority value of the LAG. The priority value influences the LAG
choice when a bridge has looped ports. The priority value is between 0-240, in steps of 16.
Designated Bridge ID
— The priority and the MAC Address of the designated bridge.
Designated Port ID
— The ID of the selected interface.
Designated Cost
— Cost of the port participating in the STP topology. Ports with a lower cost are
less likely to be blocked if STP detects loops.
Forward Transitions
— Number of times the
LAG State
has changed from the
Forwarding
state to
a
Blocking state
.
Modifying the LAG STP Parameters
1
Open the
Spanning Tree LAG Settings
page.
2
Select a LAG from the
Select a LAG
drop-down menu.
3
Modify the fields as desired.
4
Click
Apply Changes
.
The STP LAG parameters are modified, and the device is updated.
Defining STP LAG Settings Using CLI Commands
The following table contains the CLI commands for defining STP LAG settings.
Table 7-76. STP LAG Settings CLI Commands
CLI Command Description
spanning-tree
Enables spanning tree.
spanning-tree disable
Disables spanning tree on a specific
LAG.
spanning-tree cost
cost
Configures the spanning tree cost
contribution of a LAG.
spanning-tree port-priority
priority
Configures port priority.