What is the role of the Spanning Tree Protocol in Layer 2 networks?
Try an answer before revealing the guidance below.
Key Concepts
- Switching loops
- Redundant links
- Broadcast storms
- Loop-free tree
Answer Approach
- Identify the problem created by redundant Ethernet paths.
- Explain what STP does to selected ports.
- Note what happens to redundancy after the tree is built.
Full Answer
Answer status: Verified against study notes. Revision notes, not an official marking scheme.
Spanning Tree Protocol elects a loop-free active topology among switches by blocking selected redundant ports. It prevents frames from circulating indefinitely, broadcast storms, and unstable MAC learning while retaining redundant links that can be activated after a topology change.
Shortcuts: K concepts · A approach · F answer · R reviewed · B bookmark · ← / → previous / next