Episode 78 — Network Diagrams: physical vs logical and high-level vs low-level

Network diagrams appear in CloudNetX scenarios as part of documentation artifacts, and this episode explains how different diagram types support different decisions and reduce operational risk. It defines physical diagrams as representations of hardware, cabling, locations, and connectivity, and logical diagrams as representations of subnets, routing relationships, trust boundaries, and policy domains. The first paragraph focuses on audience and purpose: high-level diagrams communicate intent and major components for planning and governance, while low-level diagrams provide implementers and operators with the detail needed to configure, validate, and troubleshoot. It also emphasizes that diagrams are not decorative; they are risk controls because they clarify dependencies, prevent miscommunication, and enable faster incident response when outages occur.