Dell MX5108n OS10 Enterprise Edition User Guide for PowerEdge MX IO Modules Re - Page 221

Default Command Mode Usage Information Example Disabled INTERFACE BPDU guard prevents a port from receiving BPDUs. If the port receives a BPDU, it is placed in the Error-Disabled state as a protective measure. OS10(conf-if-eth1/1/4)# spanning-tree bpduguard enable Supported Releases 10.2.0E or later spanning-tree disable Disables the spanning-tree mode configured with the spanning-tree mode command globally on the switch or on specified interfaces. Syntax spanning-tree disable Parameters None Default Not configured. Usage Information The no version of this command re-enables STP and applies the currently configured spanning-tree settings. Command Mode CONFIGURATION INTERFACE Example OS10(config)# interface ethernet 1/1/4 OS10(config-if-eth1/1/4)# spanning-tree disable Supported Releases 10.3.0E or later spanning-tree guard Enables or disables loop guard or root guard on an interface. Syntax Parameters spanning-tree guard {loop | root | none} • loop - Enables loop guard on an interface. • root - Enables root guard on an interface. • none - Sets the guard mode to none. Default Usage Information Command Mode Example Not configured Root guard and loop guard configurations are mutually exclusive. Configuring one overwrites the other from the active configuration. INTERFACE OS10(conf-if-eth1/1/4)# spanning-tree guard root Supported Releases 10.2.0E or later Layer 2 221