What is spanning tree port type edge trunk?
If you enter the spanning-tree port type edge trunk command, the port is configured as an edge port even in the access mode. spanning-tree port type normal—This command explicitly configures the port as a normal spanning tree port and the immediate transition to the forwarding state is not enabled.
What does spanning tree Portfast do?
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.
What is spanning tree Bpdufilter enable?
The STP BPDU filter feature allows control of spanning tree participation on a per-port basis. It can be used to exclude specific ports from becoming part of spanning tree operations. A port with the BPDU filter enabled will ignore incoming BPDU packets and stay locked in the spanning tree forwarding state.
What is spanning tree PortFast trunk?
spanning-tree portfast allows the ports to skip the blocking to fowarding states and go immediately to forwarding. The spanning-tree portfast trunk does the same but for trunk connections.
What is edge port mode?
Information. A port is considered as an edge port when it is directly connected to the user terminal or server, instead of any other switches or shared network segments. The edge port will not cause a loop upon network topology changes.
Who benefits from PortFast?
It allows a device connected to this port to access the network without waiting for STP convergence on each VLAN. It minimizes the time that trunk ports must wait for spanning tree to converge.
Can we enable PortFast on trunk ports?
It is recommended to enable PortFast only on access port types. However, PortFast can be enabled on the trunk ports by selecting the Trunk check box in the WebUI.
Does Portfast disable spanning tree?
A common misunderstanding among Cisco students is that portfast disables spanning-tree on a certain interface. This is not correct however…if you enable portfast on an interface then it will jump to the forwarding state of spanning-tree. We still run spanning-tree on the interface!
How do I turn off BPDU guard?
To disable BPDU guard, use the no spanning-tree portfast bpduguard default global configuration command. You can override the setting of the no spanning-tree portfast bpduguard default global configuration command by using the spanning-tree bpduguard enable interface configuration command on an STP port.
When should I use spanning tree Bpdufilter?
Use the BPDU guard feature in a service-provider network to prevent an access port from participating in the spanning tree. Caution Configure Port Fast only on STP ports that connect to end stations; otherwise, an accidental topology loop could cause a data packet loop and disrupt switch and network operation.