What are the port states in STP?
The ports on a switch with enabled Spanning Tree Protocol (STP) are in one of the following five port states.
- • Blocking.
- • Listening.
- • Learning.
- • Forwarding.
- • Disabled.
What is STP switch?
Spanning Tree Protocol (STP) Operations The Spanning Tree Protocol (STP) is responsible for identifying links in the network and shutting down the redundant ones, preventing possible network loops. In order to do so, all switches in the network exchange BPDU messages between them to agree upon the root bridge.
How does Spanning Tree Protocol detect and monitor loops in networks?
STP is a protocol. It actively monitors all links of the network. To finds a redundant link, it uses an algorithm, known as the STA (spanning-tree algorithm). The STA algorithm first creates a topology database then it finds and disables the redundant links.
How many port states are involved in RSTP?
three port states
RSTP can be described by three port states: Discarding, Learning, and Forwarding. The Disabled, Blocking, and Listening states described by STP have been combined into the Discarding state in RSTP.
Why is STP used?
The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. RSTP was designed to be backwards-compatible with standard STP.
What is STP in Cisco?
The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them.
How is RSTP faster than STP?
The STP process to determine network state transitions is slower than the RSTP process because it is timer-based. A device must reinitialize every time a topology change occurs. RSTP converges faster because it uses a handshake mechanism based on point-to-point links instead of the timer-based process used by STP.