Cisco 3560x-24p 参考指南
B-88
Catalyst 3750-X and 3560-X Switch Command Reference
OL-21522-02
Appendix B Catalyst 3750-X and 3560-X Switch Debug Commands
debug spanning-tree bpdu
debug spanning-tree bpdu
Use the debug spanning-tree bpdu privileged EXEC command to enable debugging of sent and
received spanning-tree bridge protocol data units (BPDUs). Use the no form of this command to disable
debugging.
received 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.
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.
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
receive
(Optional) Display the nonoptimized path for received BPDU debug messages.
transmit
(Optional) Display the nonoptimized path for sent BPDU debug messages.
Release
Modification
12.2(53)SE2
This command was introduced.
Command
Description
show debugging
Displays information about the types of debugging that are enabled.
Displays spanning-tree state information.