556 Spanning Tree Commands
•
cost —
The port path cost. (Range: 0–200,000,000)
Default Configuration
The default value is 0, which signifies that the cost will be automatically
calculated based on port speed.
The default configuration is:
• Ethernet (10 Mbps)
—
2,000,000
• Fast Ethernet (100 Mbps)
—
200,000
• Gigabit Ethernet (1000 Mbps)
—
20,000
•Port-Channel
—
20,000
Command Mode
Interface Configuration (Ethernet, Port-Channel) mode
User Guidelines
This command has no user guidelines.
Example
The following example configures the MSTP instance 1 path cost for
interface 1/g9 to 4.
console(config)#interface ethernet 1/g9
console(config-if-1/g9)#spanning-tree mst 1 cost 4
spanning-tree mst port-priority
Use the spanning-tree mst port-priority command in Interface Configuration
mode to configure port priority. To return to the default port priority, use the
no form of this command.
Syntax
spanning-tree mst
instance-id
port-priority
priority
no spanning-tree mst
instance-id
port-priority
•
instance-ID —
ID of the spanning-tree instance. (Range: 1-15)
