Dell EMC SmartFabric OS10 User Guide Release 10.5.1

1. When there is BPDU guard violation on a port, OS10 either shuts down the port or moves it to BLOCKED state. Use the following command in CONFIGURATION mode to shutdown the port. The no version of the command moves the port to BLOCKED state.

   errdisable detect cause bpduguard

2. In CONFIGURATION mode, use the following command to recover the ports from shutting down due to the detection of a BPDU Guard violation. When the recovery option is enabled, the port is brought up after the recovery timer expires. The default recovery timer value is 300 seconds. When the recovery option is disabled, the port remains shut down indefinitely. You must manually bring up the port using the shutdown and no shutdown commands.

   errdisable recovery cause bpduguard

   The no version of the command disables the recovery option.

3. To change the recover timer value, use the following command in CONFIGURATION mode. This recovery timer value is applicable only for shutdown case. For Blocking case, the default value of 300 seconds is used.

   errdisable recovery interval interval-value

Example configuration

OS10(config)# errdisable detect cause bpduguard
OS10(config)# errdisable recovery interval 45
OS10(config)# errdisable recovery cause bpduguard

View detect and recovery details

OS10# show errdisable detect

Error-Disable Cause               Detect Status
-----------------------------------------------
bpduguard                          Enabled

OS10# show errdisable recovery

Error-Disable Recovery Timer Interval: 300 seconds

Error-Disable Reason               Recovery Status
---------------------------------------------------
bpduguard                          Enabled

                                                       Recovery Time left
Interface               Errdisable Cause               (seconds)
---------------------------------------------------------------------
ethernet 1/1/1:1        bpduguard                       273 
ethernet 1/1/2          bpduguard                       4 
port-channel 12         bpduguard                       45