(I found this image on a LinkedIn post; I didn't generate it myself!)
Let’s be honest: the “JSON Bourne” meme is funny because it’s ridiculous… and also because it’s uncomfortably accurate.
On the left, you have Jason Bourne: all human, instinctive, messy. On the right, you have his life compressed into curly braces and quotation marks:
{
"identity": "unknown",
"name": "Jason Bourne",
"status": "activated",
"location": "undisclosed",
"threatLevel": "maximum"
}
That’s the joke.
But there’s also the serious part:
This is exactly how your controllers, SDN platforms, cloud providers, and automation tools see the world.
To them, your network is just structured data.
Devices, interfaces, policies, services, flows, metrics; they all eventually get flattened into something that looks suspiciously like JSON. If you want to grow beyond “CLI jockey” into a serious NetDevOps or network automation engineer, you need to be fluent in that language.
So let’s demystify JSON, then connect it straight back to real network engineering and automation.
1. What JSON Really Is (And Why You Keep Seeing It Everywhere)
JSON stands for JavaScript Object Notation. Despite the name, it’s no longer tied to JavaScript. These days it’s simply:
A text-based way to represent structured data, such as objects, lists, and values, in a form that both humans and machines can read.
JSON won the popularity contest for a few major reasons:
It’s human-readable. You can look at it in a terminal and understand the structure without a PhD.
It’s language-agnostic. Every serious language, including Python, Go, Java, Rust, C#, you name it, has robust JSON libraries.
It plays nicely with HTTP and REST APIs. A simple
POSTwith a JSON body can describe everything from “create a new VRF” to “spin up a VPC with three subnets and a transit gateway.”It models hierarchy and nesting well. Networks are inherently hierarchical: a device has interfaces, an interface has subinterfaces, a subinterface has IPs, ACLs, QoS policies. JSON matches that tree-like structure nicely.
If you’ve ever hit a controller endpoint with curl and gotten a wall of braces and brackets back, that was JSON. If you’ve exported a dashboard configuration from a monitoring tool, that file was probably JSON. If you’ve used a cloud provider’s API, you’ve been sending and receiving JSON, even if some SDK was abstracting it away.
At this point, JSON is the lingua franca of systems talking to systems. As soon as your network is more than just you typing config into a single box, JSON will show up.
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