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Refer to the exhibit. Two switches on an STP domain are incorrectly configured. The error message is displayed frequently. Which IOS command can be used to troubleshoot the problem?
Perform a "debug spanning-tree events"
Execute the "show spanning-tree [Bridge-Group]"
Issue the "show interfaces [interface] status"
Input the command "show processes cpu"
The log message displayed on the Switch clearly shows that there is a duplex mismatch. Duplex mismatches can cause problems to the convergance of the STP network. To best troubleshoot a duplex mismatch use the command "show interfaces  status" to view the duplex configuration on the switchport. For more information refer to: http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/10556-16.html
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