User-defined switch ports are typically presented on the RE but processed by the PFE. 3. Common Implementation Steps Import using the Juniper vQFX RE appliance file ). Assign the image to the QEMU VM configuration. In EVE-NG: Create a directory (e.g., /opt/unetlab/addons/qemu/vqfx-20.2R1.10/ ), rename the file to , and run the fixpermissions In Cisco CML: Import the node definitions and upload the via the Image Definitions tab. Known Issues & Troubleshooting Guide: Importing Juniper vMX and vQFX into CML2.4
vqfx-20.2r1.10-re-qemu.qcow2 is the virtualized Routing Engine (RE) image for Juniper Networks' vQFX10000, specifically the 20.2R1.10 Junos release. It is designed for network simulation, validation, and DevOps workflows in environments like GNS3, EVE-NG, or Cisco Modeling Labs (CML). Cisco Learning Network Core Functionality & Design Split Architecture : The vQFX operates as a dual-VM system. This specific file handles the Routing Engine (Control Plane)
Users have reported discrepancies where images labeled as may actually identify as 19.4R1.10 after installation. To ensure you receive the correct 20.2R1 release, it is recommended to download from the "Application Package" section on the Juniper Support portal rather than "Application Media". Use Cases Vqfx-20.2r1.10-re-qemu.qcow2
Testing Junos PyEZ , Ansible playbooks, and NETCONF/RESTCONF is safely handled in this environment without risking production outages.
The filename contains critical technical details about the specific image: : Indicates the Virtual QFX switch platform. User-defined switch ports are typically presented on the
Running a Juniper vQFX virtual switch in a lab (e.g., using libvirt , virt-manager , or devices.vqfx in vrnetlab / containerlab).
Mastering virtualized enterprise networking requires robust, reliable sandboxes, and the image is a cornerstone for engineers simulating Juniper Networks environments. Specifically, this QEMU copy-on-write ( .qcow2 ) file serves as the Routing Engine (RE) for the vQFX 10000 Assign the image to the QEMU VM configuration
A white paper or technical guide for the image would focus on its role as the Routing Engine (RE) component of Juniper's virtualized QFX10000 switch series. This image is designed for network emulation platforms like GNS3 and Containerlab to simulate complex Data Center (DC) fabrics. Technical Overview: Juniper vQFX 20.2R1.10