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What can be done if a switch port is in the "errdisable" state?
Restart the system of the Switch.
Use a "show" command to find the root cause of the issue.
Issue the "enable" command under the interface subcommand.
Restart the switch port with the "shutdown/no shutdown" procedure.
Disable Spanning Tree Protocol.
A switchport in err-disable can occur on different circumstances. A "shutdown/no shutdown" procedure as well as a switch reboot may not fix the problem. The best option is to find the root cause of the problem.
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