Cisco Catalyst 3560X-24P Command Reference Manual page 1094

debug spanning-tree
Command History Release
12.2(53)SE2
Usage Guidelines The undebug spanning-tree command is the same as the no debug spanning-tree command.
When you enable debugging on a switch stack, it is enabled only on the stack master. To enable
debugging on a stack member, you can 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. You also can use the remote command stack-member-number LINE
privileged EXEC command on the stack master switch to enable debugging on a member switch without
first starting a session.
Related Commands Command
show debugging
show spanning-tree
Catalyst 3750-X and 3560-X Switch Command Reference
B-86
Appendix B
Modification
This command was introduced.
Description
Displays information about the types of debugging that are enabled.
Displays spanning-tree state information.
Catalyst 3750-X and 3560-X Switch Debug Commands
OL-21522-02