Debug Spanning-Tree Backbonefast - Cisco Catalyst 3550 Command Reference Manual

Multilayer switch

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debug spanning-tree backbonefast

Use the debug spanning-tree backbonefast privileged EXEC command to enable debugging of

spanning-tree BackboneFast events. Use the no form of this command to disable debugging.

Syntax Description

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Usage Guidelines

The undebug spanning-tree backbonefast command is the same as the no debug spanning-tree

backbonefast command.

Related Commands

show debugging

show spanning-tree

Catalyst 3550 Multilayer Switch Command Reference

debug spanning-tree backbonefast [detail | exceptions]

no debug spanning-tree backbonefast [detail | exceptions]

(Optional) Display detailed BackboneFast debug messages.

(Optional) Display spanning-tree BackboneFast-exception debug messages.

Modification

This command was introduced.

Displays information about the types of debugging that are enabled. For

syntax information, select Cisco IOS Release 12.2 Configuration Guides

and Command References > Cisco IOS Configuration Fundamentals

Configuration Guide, Release 12.2 > System Management >

Troubleshooting and Fault Management.

Displays spanning-tree state information.

Catalyst 3550 Switch Debug Commands

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