Debug Spanning-Tree Vlan-Shim - Cisco ME 3800X Command Reference Manual

Appendix B Cisco ME 3800X and ME 3600X Switch Debug Commands

debug spanning-tree vlan-shim

To enable debugging of the Spanning Tree Protocol (STP) VLAN shim, use the debug spanning-tree
switch command in privileged EXEC mode. To disable debugging, use the no form of this command.
Syntax Description all
errors
flush
general
helper
rx
state
tx [decode]
Defaults Debugging is disabled.
Command Modes Privileged EXEC
Command History Release
12.2(52)EY
Usage Guidelines The undebug spanning-tree vlan-shim command is the same as the no debug spanning-tree
vlan-shim command.
OL-28238-01
debug spanning-tree vlan-shim {all | errors | flush | general | helper | pm | rx {decode | errors |
interrupt | process} | state | tx [decode]}
no debug spanning-tree vlan-shim {all | errors | flush | general | helper | pm | rx {decode | errors
| interrupt | process} | state | tx [decode]}
Displays all spanning-tree VLAN debug messages.
Displays debug messages for STP VLAN errors.
Displays debug messages for the VLAN shim flush operation.
Displays general VLAN event debug messages.
Displays spanning-tree helper-task debug messages. Helper tasks handle bulk
spanning-tree updates.
Displays received bridge protocol data unit (BPDU) handling debug messages. The
keywords have these meanings:
decode—Displays decoded received packets.
•
errors—Displays receive error debug messages.
•
interrupt—Displays interrupt service request (ISR) debug messages.
•
process—Displays process receive BPDU debug messages.
•
Displays spanning-tree port state change debug messages;
Displays sent BPDU handling debug messages. The keyword has this meaning:
• decode—(Optional) Display decoded sent packets.
Modification
This command was introduced.
Cisco ME 3800X and ME 3600X Switch Command Reference
debug spanning-tree vlan-shim
B-29