Spanning-Tree Bpdu-Guard (Interface) - Cisco 220 Series Smart Plus Reference Manual

STP Commands

spanning-tree bpdu-guard (Interface)

spanning-tree bpdu-guard (Interface)
Cisco 220 Series Smart Plus Switches Command Line Interface Reference Guide Release 1.0.0.x
Command Mode
Interface Configuration (Ethernet, port channel) mode
Example
switchxxxxxx(config)# interface gi3
switchxxxxxx(config-if)# spanning-tree bpdu-filter enable
To shut down an interface when it receives a BPDU, use the spanning-tree bpdu-
guard Interface Configuration mode command.
To revert to its default setting, use the no form of this command.
Syntax
spanning-tree bpdu-guard {disable | enable}
no spanning-tree bpdu-guard
Parameters
• disable—Disables BPDU guard.
• enable—Enables BPDU guard.
Default Configuration
BPDU guard is disabled.
Command Mode
Interface Configuration (Ethernet, port channel) mode
User Guidelines
The command can be enabled when STP is enabled globally and on the interface.
Example
The following example shuts down fa5 when it receives an BPDU:
switchxxxxxx(config)# interface gi5
33
426