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Training Camp • Cybersecurity Glossary
Loop Guard is a Spanning Tree Protocol (STP) feature that protects networks from Layer 2 forwarding loops by enforcing additional checks on the consistency and validity of BPDUs received on blocked ports.
Loop Guard Definition: Loop Guard is a Spanning Tree Protocol (STP) feature that protects networks from Layer 2 forwarding loops by enforcing additional checks on the consistency and validity of BPDUs received on blocked ports.
Loop Guard is a feature in Spanning Tree Protocol (STP) that helps prevent Layer 2 network loops. It works by monitoring the ports that are in a blocked state due to the STP process and puts them into a loop-inconsistent state if BPDUs (Bridge Protocol Data Units) are not received on those ports. This helps to avoid network disruptions caused by STP loops.
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