Command Line Interface Guide

758 Spanning Tree Commands
User Guidelines
When configuring the Forward-Time the following relationship should be
satisfied:
2*(Forward-Time - 1) >= Max-Age.
Example
The following example configures spanning-tree bridge forward time to 25
seconds.
console(config)#spanning-tree forward-time 25
spanning-tree guard
The spanning-tree guard command selects whether loop guard or root guard
is enabled on an interface. If neither is enabled, the port operates in
accordance with the multiple spanning tree protocol. Use the “no” form of
this command to disable loop guard or root guard on the interface.
Syntax
spanning-tree guard {root | loop | none}
• root — Enables root guard.
•
loop — Enables loop guard
•
none — Disables root and loop guard.
Default Configuration
Neither root nor loop guard is enabled.
Command Mode
Interface Configuration (Ethernet, Port Channel) mode.
User Guidelines
There are no user guidelines for this command.
2CSPC4.X8100-SWUM100.book Page 758 Wednesday, August 29, 2012 6:23 PM