B-21
Cisco ME 3800X and ME 3600X Switch Command Reference
OL-28238-01
Appendix B Cisco ME 3800X and ME 3600X Switch Debug Commands
debug spanning-tree
debug spanning-tree
To enable debugging of spanning-tree activities, use the debug spanning-tree command in privileged
EXEC mode. To disable debugging, use the no form of this command.
debug spanning-tree {all | bpdu | bpdu-opt | config | etherchannel | events | exceptions | general
| mstp | pvst+ | root | snmp | switch | synchronization | vlan-shim}
no debug spanning-tree {all | bpdu | bpdu-opt | config | etherchannel | events | exceptions |
general | mstp | pvst+ | root | snmp | switch | synchronization | vlan-shim}
Syntax Description
Note Though visible in the command-line help strings, the csuf/csrt keyword is not supported.
Defaults Debugging is disabled.
Command Modes Privileged EXEC
all Displays all spanning-tree debug messages.
bpdu Displays spanning-tree bridge protocol data unit (BPDU) debug messages. See
the debug spanning-tree bpdu command.
bpdu-opt Displays optimized BPDU handling debug messages. See the debug
spanning-tree bpdu-opt command.
config Displays spanning-tree configuration change debug messages.
etherchannel Displays EtherChannel-support debug messages.
events Displays spanning-tree topology event debug messages.
exceptions Displays spanning-tree exception debug messages.
general Displays general spanning-tree activity debug messages.
mstp Debug Multiple Spanning Tree Protocol events. See the debug spanning-tree
mstp command.
pvst+ Displays per-VLAN spanning-tree plus (PVST+) event debug messages.
root Displays spanning-tree root-event debug messages.
snmp Displays spanning-tree Simple Network Management Protocol (SNMP)
handling debug messages.
switch Displays switch shim command debug messages. This shim is the software
module that is the interface between the generic Spanning Tree Protocol (STP)
code and the platform-specific code of various switch platforms. See the debug
spanning-tree switch command.
synchronization Displays the spanning-tree synchronization event debug messages.
vlan-shim Displays spanning-tree VLAN shim debug messages. See the debug
spanning-tree vlan-shim command
To Next Page
Loading...
Need help?
General