Spanning Tree Commands
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spanning-tree pathcost method
This command configures the path cost method used for Rapid Spanning Tree and
Multiple Spanning Tree. Use the no form to restore the default.
Syntax
spanning-tree pathcost method {long | short}
no spanning-tree pathcost method
• long - Specifies 32-bit based values that range from 1-200,000,000. This
method is based on the IEEE 802.1w Rapid Spanning Tree Protocol.
• short - Specifies 16-bit based values that range from 1-65535. This method
is based on the IEEE 802.1 Spanning Tree Protocol.
Default Setting
Long method
Command Mode
Global Configuration
Command Usage
The path cost method is used to determine the best path between devices.
Therefore, lower values should be assigned to ports attached to faster media,
and higher values assigned to ports with slower media. Note that path cost
(page 4-180) takes precedence over port priority (page 4-181).
Example
spanning-tree transmission-limit
This command configures the minimum interval between the transmission of
consecutive RSTP/MSTP BPDUs. Use the no form to restore the default.
Syntax
spanning-tree transmission-limit count
no spanning-tree transmission-limit
count - The transmission limit in seconds. (Range: 1-10)
Default Setting
3
Command Mode
Global Configuration
Command Usage
This command limits the maximum transmission rate for BPDUs.
Console(config)#spanning-tree pathcost method long
Console(config)#
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