is a modern, containerized approach to network emulation. It wraps QEMU VMs (like the vQFX) inside Docker containers.
EVE-NG requires strict naming conventions for images to recognize them correctly. Connect to your EVE-NG server via SSH. Create the required directory structure: mkdir -p /opt/unetlab/addons/qemu/vqfxre-20.2r1.10/ Use code with caution. Upload your file to this directory using SFTP. Rename the file to the exact name EVE-NG expects:
The vQFX is a split-architecture virtual machine consisting of two distinct parts:
The RE and PFE must be interconnected in your virtual workspace using dedicated backplane links to function as a unified virtual switch. Key Technical Specifications gns3-registry/appliances/juniper-vqfx-re.gns3a at master Vqfx-20.2r1.10-re-qemu.qcow2
Increase the assigned memory to 3072 MB and ensure kvm-intel/kvm-amd modules are fully enabled on your bare-metal hypervisor. To help tailor this guide further, let me know:
Connect of both nodes to your Management Cloud if you require external out-of-band access.
Virtual environments occasionally run into synchronization and resource issues. Here is how to solve the most frequent problems associated with this image: Issue 1: Interfaces Aren't Showing Up ( xe-0/0/0 is missing) is a modern, containerized approach to network emulation
Connect em1 (or the second network interface, depending on the platform template) of the RE node directly to em1 of the PFE node. This serves as the internal control plane link.
Connect of the RE node to em1 of the PFE node. This forms the internal management and control plane link.
The muscle. It handles the actual switching, packet transit, and ASIC-level operations. In hypervisors, this is typically deployed as a separate, distinct QEMU/KVM image. 2. Deployment: How It Works in Emulators Connect to your EVE-NG server via SSH
: To have a functional switch, this image must be paired with a PFE (Packet Forwarding Engine) image (usually named something like vqfx-20.2r1.10-pfe-qemu.qcow2 ). Standard Deployment Specifications According to Juniper's technical documentation for vQFX: vCPU : 1 for the RE. RAM : 2 GB (minimum) for the RE. Interfaces : em0 : Management interface.
: The RE and PFE communicate via an internal bridge (typically on their second interface) to function as a single switch unit.
Network simulation is a critical requirement for modern network engineers, architects, and DevOps practitioners. Emulating production environments allows you to validate configurations, test automated workflows, and study network behaviors without risking live traffic. In the Juniper Networks ecosystem, the serves as the cornerstone for simulating high-performance data center architectures.
The vQFX architecture is split into two distinct virtual machines to mimic real hardware: