2023年2月9日 · RSTP (IEEE 802.1w) natively includes most of the Cisco proprietary enhancements to the 802.1D spanning tree, such as BackboneFast, UplinkFast, and PortFast. RSTP can achieve much faster convergence in a properly configured network, sometimes in the order of a few hundred milliseconds.

2021年11月29日 · There are four-port roles in RSTP. Root Port: The port with the best path cost is elected as the root port. A non-root bridge can only have one root port. Root ports forward data to the bridge. Designated Port: It is a non-root port that is …

RSTP improves upon STP by introducing these new port roles and by defining new port states, effectively merging the blocking, listening, and learning states of STP into a single "discarding" state in RSTP. This allows for much faster convergence following a topology change.

Classic STP assigns specific port roles to determine how each switch port participates in the STP topology and whether it will forward or block traffic. The following are the port roles: Root Port (RP) – The port on a switch with the best (lowest cost) path to the Root Bridge. The root port always forwards traffic.

Do you remember all the other port roles that spanning tree has? Let’s do a little review, and I’ll show you what is different for rapid spanning tree: The switch with the best bridge ID (priority + MAC address) becomes the root bridge.

2024年11月26日 · Spanning tree protocol (STP) (IEEE 802.1D) is predominantly used to prevent layer 2 loops and broadcast storms and is also used for network redundancy. It was developed around the time where recovery from an outage that took upwards of …

2005年5月20日 · Rapid Spanning Tree Protocol (RSTP; IEEE 802.1w) can be seen as an evolution of the 802.1d standard more than a revolution. The 802.1d terminology remains primarily the same, and most parameters have been left unchanged so users familiar with 802.1d can rapidly configure the new protocol comfortably.

2024年11月21日 · There are five RSTP port roles: root, alternate, designated, backup, and disabled. Based on the connected device, RSTP classifies ports into three types: point-to-point, point-to-edge, and shared port.

RSTP bridge port roles: * Alternate port – A best alternate path to the root bridge. This path is different than using the root port. The alternative port moves to the forwarding state if there is a failure on the designated port for the segment. * Backup port – A backup/redundant path to a segment where another bridge port already connects.

RSTP has port roles like STP. These Rapid Spanning Tree Protocol Port Roles are: Root Port is the port on a switch that is the closest way (Lowest Cost) to the Root Bridge. Designated Port is the port, that can send the best BPDU on its segment. Alternate Port is a blocking port that receives better BPDU from another switch.