Command Reference, Cisco Ios Xe Everest 16.5.1A (Catalyst 3650 Switches - Cisco Catalyst 3650 series Command Reference Manual

uplinkfast
Command Default
Debugging is disabled.
Command Modes
Privileged EXEC
Command History
Release
Cisco IOS XE 3.3SECisco IOS XE 3.3SE
Usage Guidelines
The undebug spanning-tree command is the same as the no debug spanning-tree command.
When you enable debugging on a stack, it is enabled only on the active switch. To enable debugging on the
standby switch , start a session from the active switch by using the session switch-number command in
privileged EXEC mode. Enter the debug command at the command-line prompt of the standby switch.
To enable debugging on the standby switch without first starting a session on the active switch, use the remote
command switch-number LINE command in privileged EXEC mode.
Examples This example shows how to display all spanning-tree debug messages:
Device# debug spanning-tree all
Related Commands
Command
clear spanning-tree counters
clear spanning-tree detected-protocols
Displays UplinkFast-event debug messages.
Description
Clears spanning-tree counters.
Restarts the protocol migration process on the interface.

Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)

debug spanning-tree
Modification
This command was introduced.
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