Cisco 4500M Command Reference

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Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
78-16201-01
Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches
debug spanning-tree backbonefast
debug spanning-tree backbonefast
To enable debugging of spanning tree BackboneFast events, use the debug spanning-tree backbonefast
command. To disable debugging output, use the no form of this command.
debug spanning-tree backbonefast [detail | exceptions]
no debug spanning-tree backbonefast
Syntax Description
Defaults This command has no default settings.
Command Modes Privileged EXEC
Command History
Usage Guidelines This command is supported by the supervisor engine only and can be entered only from the switch
console.
Examples This example shows how to enable debugging and to display detailed spanning tree BackboneFast
debugging information:
Switch# debug spanning-tree backbonefast detail
Spanning Tree backbonefast detail debugging is on
Switch#
Related Commands undebug spanning-tree backbonefast (same as no debug spanning-tree backbonefast)
detail (Optional) Displays detailed BackboneFast debugging messages.
exceptions (Optional) Enables debugging of spanning tree BackboneFast exceptions.
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.

Cisco 4500M Specifications

General

Brand	Cisco
Model	4500M
Category	Network Router
Language	English