What is Cisco Portfast?
In this regard, what is PortFast used for?
Enabling the PortFast feature causes a switch or a trunk port to enter the STP forwarding-state immediately or upon a linkup event, thus bypassing the listening and learning states. The PortFast feature is enabled at a port level, and this port can either be a physical or a logical port.
Subsequently, question is, how do I enable PortFast on a Cisco switch? First, you need to select an interface for which you want to enable or configure PortFast, and then execute the spanning-tree portfast command to enable this feature. As shown in the preceding figure, the PortFast feature will only have effect when the interface is in a non-trunking mode.
Likewise, people ask, is PortFast enabled by default?
PortFast is not enabled by default. With PortFast enabled on a port, you effectively take the port and tell spanning tree not to implement STP on that port.
Is PortFast Cisco proprietary?
Portfast is a Cisco proprietary solution to deal with spanning-tree topology changes. A switch will never generate a topology change notification for an interface that has portfast enabled.