If you plan to upgrade, note that 20.2r1.10 uses an older partition layout. Upgrading to 21.4 or 22.2 may require a fresh installation rather than a simple request system software add . Always read the release notes for vqfx specifically (not physical QFX).
Note: For a functional switch, you must also link this instance to a corresponding PFE instance. Benefits of the 20.2R1.10 Release
The specific you are trying to test (e.g., EVPN-VXLAN, BGP) Vqfx-20.2r1.10-re-qemu.qcow2
This article will deconstruct the file name, explore its architecture, provide a setup guide, and discuss its role in modern network automation workflows.
| Attribute | Value | |-----------|-------| | | Vqfx-20.2r1.10-re-qemu.qcow2 | | Software Family | Juniper vQFX (Virtual QFX) | | JunOS Version | 20.2R1.10 | | Function | Control Plane (Routing Engine) | | Disk Format | qcow2 (QEMU) | | Typical Size | ~1–2 GB (sparse) | | Platform Emulated | QFX10000-36Q or QFX5110 (depending on VM config) | If you plan to upgrade, note that 20
To run the vqfx-20.2r1.10-re-qemu.qcow2 image, you will need: : QEMU, KVM, EVE-NG, or GNS3.
This occurs when the virtual storage disk corrupts or fails to sync its write cache correctly when shutting down. Note: For a functional switch, you must also
qemu-system-x86_64 -machine pc -cpu host -smp 2 -m 4096 \ -drive file=Vqfx-20.2r1.10-re-qemu.qcow2,if=ide,index=0,media=disk \ -serial telnet:127.0.0.1:5000,server,nowait -nographic
# Create a directory for your lab mkdir ~/vqfx-lab cd ~/vqfx-lab
.qcow2 (QEMU Copy-On-Write), standard for KVM-based hypervisors. Typical Setup Requirements
Routing Engine (Control Plane). It must be paired with a separate Packet Forwarding Engine (PFE) image (e.g., vqfx-20.2R1-2019010209-pfe-qemu.qcow ) to function as a complete switch. Version: Junos OS 20.2R1.10.