If PFE shows Online , your image works. If Offline or Testing — the qcow2 lacks proper kernel modules for your hypervisor’s virtual NIC.
Add <memoryBacking><hugepages/></memoryBacking> to the domain XML.
The vqfx202r110reqemuqcow2 image is a critical component for emulating Data Center fabrics in a virtual environment. Ensure you pair this RE image with the correct PFE image to achieve full data plane functionality.
Start by checking the file you have. The exact filename should resemble vqfx202r110re.qcow2 or vqfx-20.2R1.10-re-qemu.qcow2 . Run: vqfx202r110reqemuqcow2 work
It is typically used for:
Assuming you have downloaded the file vqfx202r110reqemuqcow2 (likely from a Juniper account or community lab source), follow these phases.
This article explores what the vQFX202R110-reqemuqcow2 image is, how it works, and how you can get it working in your own lab. What is vQFX202R110-reqemuqcow2? If PFE shows Online , your image works
: The RE expects a PFE (Packet Forwarding Engine) to communicate with over inter-process communication (IPC). Without a PFE, the CLI may hang on show route . Workaround : Disable PFE liveness checks:
For traffic forwarding tests (e.g., VXLAN routing), the RE alone won’t work. You need a separate vQFX PFE image ( vqfx202r110pfe.qcow2 ). Connect them via a virtual back-to-back link using a socket or vhost-user interface.
To make this image "work," it is essential to understand that a vQFX instance requires two distinct virtual machines (VMs) running in tandem: The vqfx202r110reqemuqcow2 image is a critical component for
Because vqfx202r110reqemuqcow2 includes full EVPN support (unlike older vMX), it works flawlessly once PFE is online.
He wrote in the handover log:
As we analyze the individual components, we start to notice potential connections to various technical domains:
How to Make the vqfx-20.2R1.10-re-qemu.qcow2 Work: A Complete Architecture and Deployment Guide