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Network Architecture

Physical Topology Diagram

Section titled “Physical Topology Diagram”

Hybrid Lab Network Topology Figure 1: Current physical network architecture featuring a collapsed core design.

Architecture Overview

Section titled “Architecture Overview”

The physical lab topology follows a hierarchical design to separate edge routing, core switching, and compute resources.

  • Edge Gateway (GL.iNet): Provides upstream connectivity to the ISP and handles external NAT/DHCP for the lab environment.
  • Core Switch (Catalyst 3560-CX): Acts as the high-speed backbone of the lab, aggregating links from the gateway, the compute node, and the access switch.
  • Compute Node (HP t740): Hosts the Proxmox hypervisor and EVE-NG simulation engine, bridging the physical and virtual environments via multiple hardware NICs.
  • Access Switch (Catalyst 2960): Provides Layer 2 connectivity for downstream devices, console loops, and future IoT endpoints.
  • Management Console (Admin Workstation): A dedicated machine connected to the core switch for Out-of-Band (OOB) and In-Band configuration of the infrastructure.