01 🌐
Routing
IP addressing, static routing, OSPF concepts, path selection, route summarization and segmentation.
02 ⚡
Switching
VLANs, trunks, STP fundamentals, port configuration and structured LAN design.
03 🛡️
Network security
ACLs, firewall policy thinking, secure access patterns and reduction of unnecessary exposure.
04 📈
Observability
Latency, packet loss, interface health, logs and telemetry turned into actionable signals.
05 🔗
WAN and VPN
Branch connectivity, tunnel troubleshooting, resilient paths and practical service restoration.
06 🤖
Automation
Python, API workflows, configuration standards and repeatable validation that reduce drift.