Cisco Catalyst 4500 Series Command Reference Manual page 1044

spanning-tree bpdufilter
Examples This example shows how to enable the BPDU filter feature on this interface:
Switch(config-if)# spanning-tree bpdufilter enable
Switch(config-if)#
Related Commands Command
show spanning-tree
spanning-tree portfast bpdufilter
default
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
Description
Displays spanning-tree information.
Enables the BPDU filtering by default on all PortFast ports.
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