Cisco 4500M

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Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
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Chapter2Cisco IOS Commands for the Catalyst 4500 Series Switches
spanning-tree portfast (interface configuration mode)
• no spanning-tree portfast—This command implicitly enables PortFast if the spanning-tree
portfast default command is defined in global configuration and if the port is not a trunk port. If
you do not configure PortFast globally, the no spanning-tree portfast command is equivalent to the
spanning-tree portfast disable command.
Examples This example shows how to enable PortFast mode:
Switch(config-if)# spanning-tree portfast
Switch(config-if)
Related Commands spanning-tree cost
spanning-tree port-priority
spanning-tree portfast default
spanning-tree uplinkfast
spanning-tree vlan
show spanning-tree