Overview of the 1T6-220 Switched Ethernet Network Analysis and Troubleshooting Exam
Network engineers and protocol analysts must demonstrate proficiency in identifying performance bottlenecks and security vulnerabilities within switched Ethernet environments using Network General Sniffer technologies. Candidates analyze Layer 2 and Layer 3 frame structures, focusing on VLAN tagging, spanning tree protocol convergence, and broadcast domain segmentation. The assessment mandates expertise in interpreting TCP/IP stack behavior, identifying duplex mismatches, and utilizing expert-system diagnostics to isolate congestion patterns. Practitioners execute packet-level trace analysis to resolve latency, throughput degradation, and routing inefficiencies across managed switching fabrics. Mastery requires advanced application of packet capture filters, trigger definitions, and statistical traffic baseline reporting to maintain enterprise-grade network availability.