Cisco Catalyst 4500 Series Configuration Manual page 221
Ios software configuration guide isco ios xe 3.9.0e and ios 15.2(5)ex
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Also See for Catalyst 4500 Series:
- Software configuration manual (2086 pages) ,
- Administration manual (1814 pages) ,
- Configuration manual (1610 pages)
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Chapter 2
Cisco IOS Commands for the Catalyst 4500 Series Switches
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
Command Default
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
The following 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)
debug spanning-tree uplinkfast [exceptions]
no debug spanning-tree uplinkfast
(Optional) Enables the debugging of the spanning tree UplinkFast exceptions.
Modification
This command was introduced on the Catalyst 4500 series switch.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release XE 3.9.xE and 15.2(5)Ex
Description
Disables debugging output.
debug spanning-tree uplinkfast
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