Networking vs Connectivity¶
Understanding how to solve a connectivity problem is different from knowing how to configure a network.
Concepts Comparison¶
| Layer | Control Plane | Data Path |
|---|---|---|
| DNS | Zones / Records | Lookup (UDP 53) |
| Routing | Route Table / UDR | Packet Forwarding |
| Security | NSG / ASG Rules | Traffic Permit / Deny |
| Listener | VM / Pod Config | Listening (TCP / UDP) |
Diagnostic Framework¶
mermaid graph TD DN[DNS Check] --> RT[Route Check] RT --> SC[Security Rule Check] SC --> LS[Listener Check] LS --> OK[Success]
Note
Always verify name resolution before checking routes. If the IP address you're targeting is wrong, the best routing in the world won't help.