Default Configuration
Default path cost is determined by 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 Modes
Interface Configuration (Ethernet, port-channel) mode
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the MSTP instance 1 path cost for Ethernet port 1/e9 to 4.
Console(config) # interface ethernet 1/e9
Console(config-if) # spanning-tree mst 1 cost 4
spanning-tree mst configuration
The spanning-tree mst configuration Global Configuration mode command enables
configuring an MST region by entering the Multiple Spanning Tree (MST) mode.
Syntax
spanning-tree mst configuration
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode
User Guidelines
All devices in an MST region must have the same VLAN mapping, configuration revision
number and name.
D E L L C O N F I D E N T I A L – P R E L I M I N A R Y 9 / 1 3 / 0 6 – F O R P R O O F O N LY
Long
Short
20,000
4
20,000
4
200,000
19
2,000,000
100
Spanning-Tree Commands
315