Spanning-Tree Mst Cost - Cisco Small Business 300 1.1 Series Administration Manual

Spanning-Tree Commands
78-20269-01 Command Line Interface Reference Guide
Example
The following example configures the port priority of port gi1 to 144.
Console(config)# interface gi1
Console(config-if)#

29.20 spanning-tree mst cost

Use the spanning-tree mst cost Interface Configuration (Ethernet, Port-channel)
mode command to configure 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. Use the no form of this
command to restore the default configuration.
Syntax
spanning-tree mst instance-id
no spanning-tree mst
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)
Fast Ethernet (100 Mbps)
Ethernet (10 Mbps)
Command Mode
Interface Configuration (Ethernet, port-channel) mode
spanning-tree mst 1 port-priority 144
cost cost
instance-id
cost
Long
20,000
20,000
200,000
2,000,000
Short
4
4
19
100
29
379