[BLUE TEAM] [Network] 9.Switch Interface Configuration and Troubleshooting Laboratory
This document details the core operating principles of network switch interfaces: full-duplex and half-duplex communication modes and the autonegotiation process. It covers the auto-configuration feature, which matches the data transmission speed and communication mode between devices. If negotiation fails, it guides you through how the switch detects the speed and determines the duplex setting according to established rules. It also provides warnings about duplex mismatches and resulting collisions caused by configuration errors. It then defines various interface error counters, such as runts, giants, and CRC errors, which can be viewed using the "show interfaces" command. Finally, it comprehensively provides practical network interface management knowledge, including a quiz to review your knowledge.