HP Cisco Catalyst Blade Switch 3020 Cisco Catalyst Blade Switch 3020 for HP Co - Page 676
debug spanning-tree
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debug spanning-tree Appendix B Cisco Catalyst Blade Switch 3020 for HP Debug Commands debug spanning-tree Use the debug spanning-tree privileged EXEC command to enable debugging of spanning-tree activities. Use the no form of this command to disable debugging. debug spanning-tree {all | backbonefast | bpdu | bpdu-opt | config | etherchannel | events | exceptions | general | mstp | pvst+ | root | snmp | switch | synchronization | uplinkfast} no debug spanning-tree {all | backbonefast | bpdu | bpdu-opt | config | etherchannel | events | exceptions | general | mstp | pvst+ | root | snmp | switch | synchronization | uplinkfast} Syntax Description all backbonefast bpdu bpdu-opt config etherchannel events exceptions general mstp pvst+ root snmp synchronization switch uplinkfast Display all spanning-tree debug messages. Display BackboneFast-event debug messages. Display spanning-tree bridge protocol data unit (BPDU) debug messages. Display optimized BPDU handling debug messages. Display spanning-tree configuration change debug messages. Display EtherChannel-support debug messages. Display spanning-tree topology event debug messages. Display spanning-tree exception debug messages. Display general spanning-tree activity debug messages. Debug Multiple Spanning Tree Protocol events. Display per-VLAN spanning-tree plus (PVST+) event debug messages. Display spanning-tree root-event debug messages. Display spanning-tree Simple Network Management Protocol (SNMP) handling debug messages. Display the spanning-tree synchronization event debug messages. Display 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. Display UplinkFast-event debug messages. Note Though visible in the command-line help strings, the csuf/csrt keyword is not supported. Defaults Debugging is disabled. Command Modes Privileged EXEC Command History Release 12.2(25)SEF Modification This command was introduced. B-60 Cisco Catalyst Blade Switch 3020 for HP Command Reference OL-8916-01