Debug Spanning-Tree Uplinkfast - Cisco Catalyst 3550 Command Reference Manual

Appendix B Catalyst 3550 Switch Debug Commands

debug spanning-tree uplinkfast

Use the debug spanning-tree uplinkfast privileged EXEC command to enable debugging of
spanning-tree UplinkFast events. Use the no form of this command to disable debugging.
Syntax Description
exceptions
Defaults Debugging is disabled.
Command Modes Privileged EXEC
Command History Release
12.1(4)EA1
Usage Guidelines The undebug spanning-tree uplinkfast command is the same as the no debug spanning-tree
uplinkfast command.
Related Commands Command
show debugging
show spanning-tree
OL-8566-02
debug spanning-tree uplinkfast [exceptions]
no debug spanning-tree uplinkfast [exceptions]
(Optional) Display spanning-tree UplinkFast-exception debug messages.
Modification
This command was introduced.
Description
Displays information about the types of debugging that are enabled. For
syntax information, select Cisco IOS Release 12.2 Configuration Guides
and Command References > Cisco IOS Configuration Fundamentals
Configuration Guide, Release 12.2 > System Management >
Troubleshooting and Fault Management.
Displays spanning-tree state information.
Catalyst 3550 Multilayer Switch Command Reference
debug spanning-tree uplinkfast
B-45