A Layer 2 network technique called Spanning Tree Protocol (STP) is used to stop loops from occurring inside a network topology.
What is STP and how does it work?
- STP was developed in order to prevent the issues that occur when computers transmit data over a local area network (LAN) that has redundant pathways.
- Data can become trapped in a loop that revolves around network segments if the flow of information is not constantly monitored and controlled, lowering performance and nearly halting traffic.
- When tying together network segments, networks frequently use redundant paths. Redundancy can result in bridge or switch looping even though it can assist protect against disaster. When data loops around the same redundant paths it took to get from one place to another, amplifying the data until it becomes a broadcast storm. Looping happens when data moves from one place to another along these repetitive paths.
- LANs with redundant links can avoid bridge looping with the use of STP. To create that redundancy and prevent network looping without STP would be challenging. STP keeps track of every link in the network, spots redundant connections, and shuts off any ports that can cause looping.
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