Quick Reference Guide

Spanning-Tree Commands 357
Default Setting
Default path cost is determined by port speed and path cost method (long or short) as shown below:
Command Modes
Interface Configuration (Ethernet, port-channel) mode.
Default Configuration
There is no default configuration for this command.
Example
The following example configures the MSTP instance 1 path cost for Ethernet port g9 to 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 Setting
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.
Interface Long Short
Port-channel 20,000 4
Gigabit Ethernet (1000 Mbps) 20,000 4
Fast Ethernet (100 Mbps) 200,000 19
Ethernet (10 Mbps) 2,000,000 100
Console(config) # interface ethernet 1/g9
Console(config-if) # spanning-tree mst 1 cost 4
5400_CLI.book Page 357 Wednesday, December 17, 2008 4:33 PM