Owner's Manual

394 Spanning-Tree Commands
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no spanning-tree mst instance-id port-priority
• instance-ID— ID of the spanning -tree instance. (Range: 0-15)
•
priority— The port priority. (Range: 0 - 240 in multiples of 16)
Default Configuration
The default port-priority for IEEE MSTP is 128.
Command Modes
Interface Configuration (Ethernet, port-channel) mode
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the port priority of port g1 to 142.
spanning-tree mst cost
The spanning-tree mst cost interface configuration command configures the path cost for multiple
spanning tree (MST) calculations. If a loop occurs, the spanning tree considers path cost when
selecting an interface to put in the forwarding state. To return to the default port path cost, use the
no form of this command.
Syntax
spanning-tree mst instance-id cost cost
no spanning-tree mst instance-id cost
• instance-ID— ID of the spanning -tree instance (Range: 1-15).
•
cost— The port path cost. (Range: 1 - 200,000,000)
Default Configuration
If the pathcost method is short, the default configuration is:
• Ethernet (10 Mbps) - 100
• Fast Ethernet (100 Mbps) - 19
• Gigabit Ethernet (1000 Mbps) - 4
• Port-Channel - 4
Console (config)# interface ethernet g1
Console (config-if)# spanning-tree mst 1 port-priority 142