Spanning-Tree Mst Cost - Cisco 300 Series Cli Manual
Small business 300 series managed switches
command line interface guide release 1.3
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31.21 spanning-tree mst cost
Use the spanning-tree mst cost Interface Configuration (Ethernet, Port-channel)
mode command to configure the path cost for MST calculations. If a loop occurs,
the spanning tree considers path cost when selecting an interface to put in the
Forwarding state. Use the no form of this command to restore the default
configuration.
Syntax
instance-id
spanning-tree mst
no spanning-tree mst
Default Configuration
N/A
Parameters
•
instance-id—Specifies the spanning-tree instance ID. (Range: 1–15)
•
cost—Specifies the port path cost. (Range: 1–200000000)
Default Configuration
Default path cost is determined by the port speed and path cost method (long or
short) as shown below:
Interface
Port-channel
Gigabit Ethernet (1000 Mbps)
Ethernet (10 Mbps)
Command Mode
Interface Configuration (Ethernet, port-channel) mode
Example
The following example configures the MSTP instance 1 path cost for
gigabitethernet port 9 to 4.
switchxxxxxx(config)#
cost
cost
instance-id
cost
Long
20,000
20,000
2,000,000
interface gi9
78-21075-01 Command Line Interface Reference Guide
Spanning-Tree Commands
Short
4
4
100
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