Dell PowerSwitch S5212F-ON OS10 Enterprise Edition User Guide Release 10.4.3.0 - Page 327

MST commands errdisable detect cause bpduguard Configures the port to be shut down or moves the port to blocked state on detecting a BPDU guard violation. Syntax Parameters Default Command Mode Usage Information errdisable detect cause bpduguard None Enabled CONFIGURATION This command applies only to STP-enabled ports. The command takes effect only when BPDU guard is configured on a port. When the detect cause option is enabled, the port is shut down whenever there is a BPDU guard violation. When the option is disabled, the port is not shut down but moved to BLOCKING state whenever there is a BPDU guard violation. In this case, the port is operationally DOWN in spanning-tree mode and when the recovery timer expires, the port is UP irrespective of the recovery cause configuration. The no version of the command disables the detect cause option. Example OS10(config)# errdisable detect cause bpduguard Supported Releases 10.4.2.0 or later errdisable recovery cause bpduguard Enables to recover the ports shut down due to BPDU Guard violation. Syntax Parameters Default Command Mode Usage Information errdisable recovery cause bpduguard None Disabled CONFIGURATION This command applies only to STP-enabled ports. The command takes effect only when BPDU guard is configured on a port and errdisable detect cause bpduguardis enabled on the port. When the recovery option is enabled, the port is brought up after the recovery timer expires. When the recovery option is disabled, the port is shut down indefinitely. You must manually bring up the port using the shutdown and no shutdown commands. The no version of the command disables the recovery option. Example OS10(config)# errdisable recovery cause bpduguard Layer 2 327