Quick Reference Guide

Spanning-Tree Commands 373
DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
Example
The following example configures the Spanning Tree bridge forwarding time to 25 seconds.
spanning-tree hello-time
The spanning-tree hello-time Global Configuration mode command configures the Spanning Tree
bridge hello time, which is how often the device Broadcasts Spanning Tree BPDUs to other
devices. Use the no form of this command to return to the default configuration.
Syntax
•s panning-tree hello-time seconds
• no spanning-tree hello-time
• seconds — Time in seconds. (Range: 1 - 10)
Default Configuration
The default hello time for IEEE Spanning Tree Protocol (STP) is 2 seconds.
Command Mode
Global Configuration mode.
User Guidelines
• When configuring the hello time, the following relationship should be kept:
– Max-Age >= 2*(Hello-Time + 1)
Example
The following example configures Spanning Tree bridge hello time to 5 seconds.
spanning-tree max-age
The spanning-tree max-age Global Configuration mode command configures the Spanning Tree
bridge maximum age. Use the no form of this command to return to the default configuration.
Syntax
• spanning-tree max-age seconds
• no spanning-tree max-age
• seconds — Time in seconds. (Range: 6 - 40)
Console(config)# spanning-tree forward-time 25
Console(config)# spanning-tree hello-time 5