Debug Spanning-Tree Backbonefast - Cisco Catalyst 3750 Command Reference Manual

debug spanning-tree backbonefast

debug spanning-tree backbonefast
Use the debug spanning-tree backbonefast privileged EXEC command to enable debugging of
spanning-tree BackboneFast events. Use the no form of this command to disable debugging.
Syntax Description
detail
exceptions
Defaults Debugging is disabled.
Command Modes
Privileged EXEC
Command History Release
12.1(11)AX
Usage Guidelines The undebug spanning-tree backbonefast command is the same as the no debug spanning-tree
backbonefast command.
When you enable debugging, 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 Switch Command Reference
B-78
debug spanning-tree backbonefast [detail | exceptions]
no debug spanning-tree backbonefast [detail | exceptions]
(Optional) Display detailed BackboneFast debug messages.
(Optional) Display spanning-tree BackboneFast-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.
Appendix B Catalyst 3750 Switch Debug Commands
78-16181-03