Re-enabling an error-disabled port automatically

Enter global configuration mode.
```
device# configure terminal
```

Enter STP configuration mode.

device(config)# protocol spanning-tree stp

Enable the error-disable-timeout timer.

device(config-stp)# error-disable-timeout enable

Set an interval after which port shall be enabled.
```
device(config-stp)# error-disable-timeout interval 60
```
The interval range is from 0 to 1000000 seconds, the default is 300 seconds.
Return to privileged EXEC mode.
```
device(config-stp)# end
```

Verify the configuration.

device# show spanning-tree
 Spanning-tree Mode: Spanning Tree Protocol

 Root Id: 8000.768e.f805.5800 (self)
 Bridge Id: 8000.768e.f805.5800

 Root Bridge Forward Delay: 15; Hello Time: 2; Max Age: 20; Max-hops: 20
 Configured Forward Delay: 15; Hello Time: 2; Max Age: 20; Max-hops: 20
 Number of topology change(s): 0

 Bpdu-guard errdisable timeout: enabled
 Bpdu-guard errdisable timeout interval: 60 sec

Automatically re-enable an error-disabled port configuration example

device# configure terminal
device(config)# protocol spanning-tree stp
device(config-stp)# error-disable-timeout enable
device(config-stp)# error-disable-timeout interval 60
device(config-stp)# end
device# show spanning-tree