Cisco Catalyst 3550

B-39
Catalyst 3550 Multilayer Switch Command Reference
OL-8566-02
Appendix B Catalyst 3550 Switch Debug Commands
debug spanning-tree bpdu
debug spanning-tree bpdu
Use the debug spanning-tree bpdu privileged EXEC command to enable debugging of received and
transmitted spanning-tree bridge protocol data units (BPDUs). Use the no form of this command to
disable debugging.
debug spanning-tree bpdu [receive | transmit]
no debug spanning-tree bpdu [receive | transmit]
Syntax Description
Defaults Debugging is disabled.
Command Modes Privileged EXEC
Command History
Usage Guidelines The undebug spanning-tree bpdu command is the same as the no debug spanning-tree bpdu
command.
Related Commands
receive (Optional) Display receive BPDU debug messages.
transmit (Optional) Display transmit BPDU debug messages.
Release Modification
12.1(4)EA1 This command was introduced.
Command Description
show debugging 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.
show spanning-tree Displays spanning-tree state information.