Cisco 4500M

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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 uplinkfast
debug spanning-tree uplinkfast
To enable debugging of spanning tree UplinkFast events, use the debug spanning-tree uplinkfast
command. To disable debugging output, use the no form of this command.
debug spanning-tree uplinkfast [exceptions]
no debug spanning-tree uplinkfast
Syntax Description
Defaults This command has no default settings.
Command Modes Privileged EXEC
Command History
Usage Guidelines This command is supported only by the supervisor engine and can be entered only from the switch
console.
Examples This example shows how to debug spanning tree UplinkFast exceptions:
Switch# debug spanning-tree uplinkfast exceptions
Spanning Tree uplinkfast exceptions debugging is on
Switch#
Related Commands undebug spanning-tree uplinkfast (same as no debug spanning-tree uplinkfast)
exceptions (Optional) Enables debugging of spanning tree UplinkFast exceptions.
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.