470 Spanning-Tree Commands
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\CLI Folders\Dell Contax
CLI\files\Spanning-Tree.fm
DELL CONFIDENTIAL – PRELIMINARY 5/15/12 - FOR PROOF ONLY
Command Mode
Interface Configuration (Ethernet, port-channel) mode
User Guidelines
The priority value must be a multiple of 16.
Example
The following example configures the port priority of port gi1/0/1 to 144.
Console(config)#
interface
gigabitethernet 1/0/1
Console(config-if)#
spanning-tree mst
1
port-priority
144
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
cost
cost
no spanning-tree mst
instance-id
cost
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 Long Short
Port-channel 20,000 4
Gigabit Ethernet (1000 Mbps) 20,000 4
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