Vqfx-20.2r1.10-re-qemu.qcow2 -

vqfx-20.2R1.10-re-qemu.qcow2 file is the Routing Engine (RE) disk image for the Juniper vQFX10000

6. Common Issues & Troubleshooting

Stuck at "Booting...": Ensure you allocated enough RAM. The RE requires at least 2GB, sometimes 4GB for stability in version 20.2.
No Interfaces (No ge-0/0/0): This confirms the PFE is missing or not communicating. The RE generates the control plane, but the PFE provides the actual data ports (ge- or et- interfaces). You cannot pass traffic without the PFE.
Licensed Features: The image usually boots as a "Virtual" instance. Some high-end features might require a license key, but standard switching/routing and EVPN-VXLAN lab features typically work out of the box for the evaluation period or in lab mode.
Renaming: Do not rename the internal file structure of the qcow2. Only rename the file itself if your simulation platform requires it (like hda.qcow2).

If you have a more specific feature in mind, such as automation of certain tasks, performance enhancements, or integration with other tools, please provide more details to get a more targeted response.

Final recommendation: Use this image for JunOS CLI practice, routing protocol labs, and automation testing. For EVPN/VXLAN data center work, prefer vJunOS-switch 22.x or later.

Conclusion

Vqfx-20.2r1.10-re-qemu.qcow2 -

vqfx-20.2R1.10-re-qemu.qcow2 file is the Routing Engine (RE) disk image for the Juniper vQFX10000

6. Common Issues & Troubleshooting

Stuck at "Booting...": Ensure you allocated enough RAM. The RE requires at least 2GB, sometimes 4GB for stability in version 20.2.

No Interfaces (No ge-0/0/0): This confirms the PFE is missing or not communicating. The RE generates the control plane, but the PFE provides the actual data ports (ge- or et- interfaces). You cannot pass traffic without the PFE.

Licensed Features: The image usually boots as a "Virtual" instance. Some high-end features might require a license key, but standard switching/routing and EVPN-VXLAN lab features typically work out of the box for the evaluation period or in lab mode.

Renaming: Do not rename the internal file structure of the qcow2. Only rename the file itself if your simulation platform requires it (like hda.qcow2).

Final recommendation: Use this image for JunOS CLI practice, routing protocol labs, and automation testing. For EVPN/VXLAN data center work, prefer vJunOS-switch 22.x or later. vqfx-20

Conclusion