User's Manual

Table Of Contents
247
Users Manual of CS-6306R
20.1.2 Configuring STP Optional Characteristic
20.1.2.1 STP Optional Characteristic Configuration Task
Configuring Port Fast
Configuring BPDU Guard
Configuring BPDU Filter
Configuring Uplink Fast
20.1.2.2 Configuring Port Fast
An interface with the Port Fast feature enabled is moved directly to the spanning-tree forwarding state without
waiting for the standard forward-time delay.
Use the following command to configure the port fast feature in the global configuration mode:
command purpose
spanning-tree port fast default Globally enables port fast feature. It is
valid to all interfaces.
no spanning-tree portfast default Globally disables port fast feature. It has
no effect on the interface configuration.
The port fast feature only applies to the interface that connects to the host. The
BPDU Guard or BPDU Filter must be configured at the same time when the port
fast feature is configured globally.
Use the following command to configure the port fast feature in the interface configuration mode:
command purpose
spanning-tree portfast Enables port fast feature on the interface.
no spanning-tree portfast Disables port fast feature on the interface.
It has no effect on the global configuration.