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This example demonstrates how to start building a visualization with D3 version 6, rendering a set of static circles representing network entities. The code defines a graph structure with nodes and links, though only the nodes are drawn using `d3.select` and SVG circle elements. The rendering logic uses the `svg.selectAll('circle')` method to add new circles based on the provided data array. The example includes placeholder data for identifiers, IP addresses, and device information, and is accompanied by a tutorial video.