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2.13.2. Frame Switching Methods
| Method | Description | Latency | Error Detection |
|---|---|---|---|
| Store-and-forward | Receive entire frame, check FCS, then forward | Highest | Yes |
| Cut-through | Forward after reading destination MAC (first 6 bytes) | Lowest | No |
| Fragment-free | Forward after 64 bytes (minimum frame size) | Medium | Partial (collision) |
⚠️ Exam Trap: Cisco switches default to store-and-forward. Cut-through provides lower latency but can forward bad frames.