B-92
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command Reference
OL-13271-03
Appendix B Cisco Catalyst Blade Switch 3130 and 3032 for Dell Debug Commands
debug udld
debug udld
Use the
debug udld
privileged EXEC command to enable debugging of the UniDirectional Link
Detection (UDLD) feature. Use the
no
form of this command to disable UDLD debugging.
debug udld
{
events
|
packets
|
registries
}
no debug udld
{
events
|
packets
|
registries
}
Syntax Description
Defaults
Debugging is disabled.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
The
undebug udld
command is the same as the
no debug udld
command.
On a stacking-capable switch, 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.
For
debug udld events
, these debugging messages appear:
•
General UDLD program logic flow
•
State machine state changes
•
Program actions for the set and clear ErrDisable state
•
Neighbor cache additions and deletions
•
Processing of configuration commands
•
Processing of link-up and link-down indications
events
Display debug messages for UDLD process events as they occur.
packets
Display debug messages for the UDLD process as it receives packets from the
packet queue and tries to send them at the request of the UDLD protocol code.
registries
Display debug messages for the UDLD process as it processes registry calls from
the UDLD process-dependent module and other feature modules.
Release
Modification
12.2(40)EX1
This command was introduced.
