Debug Spanning-Tree - Cisco ME 3400 Command Reference Manual

debug spanning-tree

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.
Syntax Description all
bpdu
bpdu-opt
config
etherchannel
events
exceptions
general
mstp
pvst+
root
snmp
switch
synchronization
Though visible in the command-line help strings, the backbonefast, csuf/csrt, and uplinkfast keywords
Note
are not supported.
Defaults
Debugging is disabled.
Command Modes
Privileged EXEC
Cisco ME 3400 Ethernet Access Switch Command Reference
B-82
debug spanning-tree {all | bpdu | bpdu-opt | config | etherchannel | events | exceptions | general
| mstp | pvst+ | root | snmp | switch | synchronization}
no debug spanning-tree {all | bpdu | bpdu-opt | config | etherchannel | events | exceptions |
general | mstp | pvst+ | root | snmp | switch | synchronization}
Display all spanning-tree debug messages.
Display spanning-tree bridge protocol data unit (BPDU) debug messages. See
the debug spanning-tree bpdu
Display optimized BPDU handling debug messages. See the
spanning-tree bpdu-opt
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. See the
mstp command
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 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
spanning-tree switch
Display the spanning-tree synchronization event debug messages.
Appendix B Cisco ME 3400 Ethernet Access Switch Debug Commands
command.
command
command
debug
debug spanning-tree
debug
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