Route Mechanicsnetwork engineering

// field notes

The method, written down.

Notes from real network work, written for engineers. If you're deciding whether to bring me in, these are the best way for your technical team to judge how I think.

BGPWhy BGP sometimes chooses the wrong pathBGP is rarely random. When traffic takes an unexpected exit, trace the route through policy and the selection algorithm, one attribute at a time.AutomationFrom config to intent: why automation mattersReplaying CLI through a script isn't automation. Model the service, validate the inputs, generate the config, then prove the network matches.TroubleshootingEVPN / VXLAN: what's actually happening?Pull the control plane and data plane apart and EVPN stops being magic. Follow one MAC address from host to remote VTEP.