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Refer to the exhibit. The network has been configured to run Common Spanning Tree under VLAN 001. The STP network is frequently re-converging and the overall connectivity is unstable. What can be the cause of the issue?

A duplex mismatch is provoking re-convergence.

The AUTO configuration is not supported on Common STP.

The STP path cost must be defined manually.

There is only one VLAN configured.



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