Cisco Catalyst 4500 Series Configuration Manual page 1106

spanning-tree portfast (interface configuration mode)
Using the no spanning-tree portfast interface configuration command resets the interface to the port
type you have specified in the spanning-tree portfast global configuration command.
Using the spanning-tree portfast disable command resets the interface to the port type you have
specified in the spanning-tree portfast global configuration command.
If you have not configured spanning-tree portfast globally, using the no spanning-tree portfast
interface configuration command is equivalent to the spanning-tree portfast disable interface
configuration command.
Use the show spanning-tree interface type detail command to know what is configured on a given port.
Examples
The following example shows how to enable edge behavior on GigabitEthernet interface 5/7 and verify
configuration:
The following example shows how to configure GigabitEthernet interface 5/8 as a network port and
verify configuration:
Related Commands Command
spanning-tree cost
spanning-tree bridge assurance
spanning-tree portfast
show spanning-tree
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release XE 3.9.xE and 15.2(5)Ex
2-1056
Switch# configure terminal
Switch(config)# interface fastethernet 5/7
Switch(config-if)# spanning-tree portfast edge
Switch(config-if)# end
Switch#
Switch# configure terminal
Switch(config)# interface gigabitethernet 5/8
Switch(config-if)# spanning-tree portfast network
Switch(config-if)# end
Switch#
Description
Calculates the path cost of STP on an interface.
Enables Bridge Assurance.
Globally enables a default state for all ports.
Displays spanning-tree state information.
Chapter 2