Cisco Catalyst 3750 - Debug Interface

B-15
Catalyst 3750 Switch Command Reference
OL-8552-07
Appendix B Catalyst 3750 Switch Debug Commands
debug interface
debug interface
Use the debug interface privileged EXEC command to enable debugging of interface-related activities.
Use the no form of this command to disable debugging.
debug interface {interface-id | null interface-number | port-channel port-channel-number |
vlan
vlan-id}
no debug interface {interface-id | null interface-number | port-channel port-channel-number |
vlan
vlan-id}
Syntax Description
Defaults Debugging is disabled.
Command Modes Privileged EXEC
Command History
Usage Guidelines If you do not specify a keyword, all debug messages appear.
The undebug interface command is the same as the no debug interface 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.
interface-id Display debug messages for the specified physical port, identified by type
switch number/module number/ port, for example gigabitethernet 1/0/2.
null interface-number Display debug messages for null interfaces. The interface-number is always
0.
port-channel
port-channel-number
Display debug messages for the specified EtherChannel port-channel
interface. The port-channel-number range is 1 to 48.
vlan vlan-id Display debug messages for the specified VLAN. The vlan-id range is 1 to
4094.
Release Modification
12.1(11)AX This command was introduced.