Assuming you have the image at /var/lib/libvirt/images/vqfx202-r1.1.0.qcow2 :
<disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none' io='native'/> <source file='/images/vqfx202.qcow2'/> <target dev='sda' bus='scsi'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> <controller type='scsi' index='0' model='virtio-scsi'/>
This specific image string breaks down into a distinct naming convention used for virtualization platforms:
Emulated by a companion file (typically named something like vqfx-20.2R1-2019010209-pfe-qemu.qcow ). It acts as the line-card/ASIC data plane, handling the actual switching and traffic forwarding. vqfx202r110reqemuqcow2 top
You provide only the RE image. The script automatically generates a lightweight, matching PFE instance. It spins up both QEMU instances simultaneously.
Mastering the Juniper vQFX: A Deep Dive into vqfx202r110reqemuqcow2
In the realm of network virtualization and simulation, Juniper Networks’ Virtual QFX (vQFX) series remains a staple for data center simulations, especially for leaf-spine architectures. The refers specifically to the vQFX version 20.2R1.10 , designed for QEMU virtualization in .qcow2 image format. The refers specifically to the vQFX version 20
Prototype network designs before implementing them in production. Top Deployment Guide (EVE-NG Scenario)
A prominent point of confusion within the networking community concerns the actual Junos version packaged inside this file.
The switch is designed to be a “split VM,” separating its control and data planes across two virtual machines: consider these optimizations:
Unlike simpler virtual routers, a full Juniper vQFX instance requires two distinct virtual machines running in tandem to operate properly:
To achieve the "top" performance from this simulation, consider these optimizations: