Debug Pm - Cisco Catalyst 3550 Command Reference Manual

Appendix B Debug Commands

debug pm

Use the debug pm privileged EXEC command to debug port manager (PM) activity. The port manager
is a state machine that controls all the logical and physical interfaces. All features, such as VLANs,
UniDirectional Link Detection (UDLD), and so forth, work with the port manager to provide switch
functions. Use the no form of this command to disable debugging output.
Syntax Description all
assert
card
cookies
etherchnl
messages
port
registry
sm
span
split
vlan
vp
Note Though visible in the command-line help strings, the scp and pvlan keywords are not supported.
Defaults
Debugging is disabled.
Command Modes
Privileged EXEC
Command History Release
12.1(4)EA1
Usage Guidelines
The undebug pm command is the same as the no debug pm command.
78-11195-09
debug pm {all | assert | card | cookies | etherchnl | messages | port | registry | sm | span | split |
vlan | vp}
no debug pm {all | assert | card | cookies | etherchnl | messages | port | registry | sm | span | split |
vlan | vp}
Display all PM debugging messages.
Debug assert messages.
Debug line-card related events.
Enable internal PM cookie validation.
Debug EtherChannel-related events.
Debug PM messages.
Debug port-related events.
Debug PM registry invocations.
Debug state-machine related events.
Debug spanning-tree related events.
Debug split-processor.
Debug VLAN-related events.
Debug virtual-port related events.
Modification
This command was first introduced.
Catalyst 3550 Multilayer Switch Command Reference
debug pm
B-27