Debug Spanning-Tree Uplinkfast - Cisco Catalyst 4500 Series Command Reference Manual

debug spanning-tree uplinkfast

debug spanning-tree uplinkfast
To enable the debugging of the spanning-tree UplinkFast events, use the debug spanning-tree
uplinkfast command. To disable the debugging output, use the no form of this command.
Syntax Description
exceptions
Defaults This command has no default settings.
Command Modes
Privileged EXEC mode
Command History Release
12.1(8a)EW
Usage Guidelines This command is supported only on the supervisor engine and enterable only from the switch console.
Examples
This example shows how to debug the spanning tree UplinkFast exceptions:
Switch# debug spanning-tree uplinkfast exceptions
Spanning Tree uplinkfast exceptions debugging is on
Switch#
Related Commands Command
undebug spanning-tree uplinkfast
(same as no debug spanning-tree
uplinkfast)
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0SG and IOS 15.1(1)SG)
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debug spanning-tree uplinkfast [exceptions]
no debug spanning-tree uplinkfast
(Optional) Enables the debugging of the spanning tree UplinkFast exceptions.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
Description
Disables debugging output.
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