Cisco Cisco 5760 Wireless LAN Controller Referências técnicas
debug spanning-tree
To enable debugging of spanning-tree activities, use the debug spanning-tree command in EXEC mode. To
disable debugging, use the no form of this command.
disable debugging, use the no form of this command.
debug spanning-tree {all | backbonefast | bpdu | bpdu-opt | config | csuf/csrt | etherchannel | events |
exceptions | general | mstp | pvst+| root | snmp | synchronization | switch | uplinkfast}
exceptions | general | mstp | pvst+| root | snmp | synchronization | switch | uplinkfast}
no debug spanning-tree {all | backbonefast | bpdu | bpdu-opt | config | csuf/csrt | etherchannel | events
| exceptions | general | mstp | pvst+| root | snmp | synchronization | switch | uplinkfast}
| exceptions | general | mstp | pvst+| root | snmp | synchronization | switch | uplinkfast}
Syntax Description
Displays all spanning-tree debug messages.
all
Displays BackboneFast-event debug messages.
backbonefast
Displays spanning-tree bridge protocol data unit (BPDU) debug messages.
bpdu
Displays optimized BPDU handling debug messages.
bpdu-opt
Displays spanning-tree configuration change debug messages.
config
Displays cross-stack UplinkFast and cross-stack rapid transition activity debug
messages.
messages.
This keyword is supported only on stacking-capable controllers.
csuf/csrt
Displays EtherChannel-support debug messages.
etherchannel
Displays spanning-tree topology event debug messages.
events
Displays spanning-tree exception debug messages.
exceptions
Displays general spanning-tree activity debug messages.
general
Debugs Multiple Spanning Tree Protocol (MSTP) events.
mstp
Displays per-VLAN spanning-tree plus (PVST+) event debug messages.
pvst+
Displays spanning-tree root-event debug messages.
root
Displays spanning-tree Simple Network Management Protocol (SNMP) handling
debug messages.
debug messages.
snmp
Displays the spanning-tree synchronization event debug messages.
synchronization
Displays controller 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 controller platforms.
module that is the interface between the generic Spanning Tree Protocol (STP)
code and the platform-specific code of various controller platforms.
switch
Displays UplinkFast-event debug messages.
uplinkfast
Consolidated Platform Command Reference, Cisco IOS XE Release 3SE (Cisco WLC 5700 Series)
OL-29471-01
943
debug spanning-tree