Quick Reference Guide

Spanning-Tree Commands 381
DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
Command Mode
Global Configuration mode.
User Guidelines
• The device with the lowest priority is selected as the root of the Spanning Tree.
Example
The following example configures the Spanning Tree priority of instance 1 to 4096.
spanning-tree mst max-hops
The spanning-tree mst max-hops Global Configuration mode command configures the number of
hops in an MST region before the BDPU is discarded and the port information is aged out. Use the
no form of this command to return to the default configuration.
Syntax
• spanning-tree mst max-hops hop-count
• no spanning-tree mst max-hops
• hop-count — Number of hops in an MST region before the BDPU is discarded .
(Range: 1 - 40)
Default Configuration
The default number of hops is 20.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the maximum number of hops that a packet travels in an MST
region before it is discarded to 10.
Console(config)# spanning-tree mst 1 priority 4096
Console (config) # spanning-tree mst max-hops 10