User's Manual

278
Command Purpose
spanning-tree portfast bpduguard
Globally enables BPDU Guard feature. It is valid
to all interfaces.
no spanning-tree portfast bpduguard
Globally disables bpdu guard feature.
Note:
Globally enabling port fast feature may result in broadcast storm. The BPDU Guard or BPDU Filter should
be configured for protection sake.
Use the following command to configure the BPDU Guard feature in the interface configuration mode:
Command Purpose
spanning-tree bpduguard enable
Enables bpdu guard feature on the interface.
spanning-tree bpduguard disable
Disables bpdu guard feature on the interface. It
has no effect on the global configuration.
no spanning-tree bpduguard
Disables bpdu guard feature on the interface. It
has no effect on the global configuration.
37.2.4 Configuring BPDU Filter
With the BPDU filtering characteristic, the switch will block BPDU to send out in SSTP/PVST mode, and also
from a protection of the Port Fast.
In global configuration mode, run command BPDU Filter:
Command Purpose
spanning-tree portfast bpdufilter
Globally enables BPDU Filter feature. It is valid
to all interfaces.
no spanning-tree portfast bpdufilter
Globally disables BPDU Filter feature.
Note:
Globally enabling port fast feature may result in broadcast storm. The BPDU Guard or BPDU
Filter should be configured for protection sake.
Use the following command to configure the BPDU Filter feature in the interface configuration mode:
Command Purpose
spanning-tree bpdufilter enable
Enables BPDU Filter feature on the interface.
spanning-tree bpdufilter disable
Disables BPDU Filter feature on the interface. It
has no effect on the global configuration.