Physical Juniper QFX10000 switches rely on independent control planes (the Routing Engine) and high-speed switching ASICs (the Packet Forwarding Engine). The vqfx-20.2R1.10-re-qemu.qcow2 image mimics this separation digitally:

Typically named vqfx-20.2R1-*-pfe-qemu.qcow or similar.

Below is a structured plan to develop a — for example, adding automated config deployment + telemetry export to this vQFX switch.

This article explains exactly how to make vqfx202r110re-qemu.qcow2 work, from proper conversion to advanced troubleshooting.

Working with vqfx-20.2R1.10-re-qemu.qcow2 is a powerful way to build Juniper labs, but it requires careful attention to detail. Use these key takeaways and best practices to ensure a smooth experience.

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Simplify by using or containerlab with the following topology: