The Vqfx-20.2r1.10-re-qemu.qcow2 file contains a complete virtual disk image, including:
The 20.2 release brought several enhancements to Juniper's Junos OS, making it a robust choice for testing modern data center fabrics.
By using the vqfx-20.2r1.10-re-qemu.qcow2 image, engineers can simulate sophisticated Data Center fabrics, allowing for rapid development and testing in a safe virtual environment before deploying to physical hardware. Vqfx-20.2r1.10-re-qemu.qcow2
Given the version is 20.2 (circa 2020), it is but useful for:
The filename Vqfx-20.2r1.10-re-qemu.qcow2 can be broken down into several components: The Vqfx-20
This article will deconstruct the file name, explore its architecture, provide a setup guide, and discuss its role in modern network automation workflows.
At its core, Vqfx-20.2r1.10-re-qemu.qcow2 is a virtual disk image file. The .qcow2 extension indicates that it is a QEMU Copy-On-Write image file, which is a virtual disk format used by the QEMU (Quick EMUlator) virtualization software. QEMU is an open-source emulator that enables users to run various operating systems on a host machine. At its core, Vqfx-20
| Feature | This (vQFX 20.2R1) | vJunos-EVO (24.x) | cRPD (Container) | | :--- | :--- | :--- | :--- | | | Separate PFE VM | Integrated | None (route server) | | EVPN-VXLAN | Basic | Full, with multi-homing | Routing only | | Resource Usage | 4 GB RAM + 2 vCPU | 8-16 GB RAM + 4 vCPU | 1 GB RAM | | Startup Time | 5-7 min (RE+PFE) | 2 min | 10 sec | | Recommendation | Legacy labs | New labs, production | Route reflectors |
: Refers to the Virtual QFX, Juniper's virtualized version of their QFX series switches.
Minimum 1 vCPU (2 vCPUs recommended for faster boot times and stable routing convergence).