Cisco Catalyst 3750 Command Reference Manual page 667

Appendix B Catalyst 3750 Switch Debug Commands
Command History Release
12.1(11)AX
12.1(14)EA1
Usage Guidelines The undebug spanning-tree command is the same as the no debug spanning-tree command.
When you enable debugging, it is enabled only on the stack master. To enable debugging on a stack
member, you must start a session from the stack master by using the session switch-number privileged
EXEC command. Then enter the debug command at the command-line prompt of the stack member.
Related Commands Command
show debugging
show spanning-tree
78-16181-01
Modification
This command was introduced.
The mstp and csuf/csrt keywords were added.
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 3750 Switch Command Reference
debug spanning-tree
B-67