This guide covers the vqfx-20.2R1.10-re-qemu.qcow2 image, which is the component of the Juniper vQFX virtual switch. It is typically used alongside the PFE (Packet Forwarding Engine) image to simulate Juniper QFX switches in virtual environments like GNS3 or Cisco CML . Key Information & Usage Purpose: Juniper Virtual QFX Switch Routing Engine.

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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

em1 : Internal link to communicate with the PFE image (crucial for the switch to function). Useful Resources

: This is the file format. QEMU Copy On Write image file is a virtual disk image format used by QEMU. It supports dynamic and fixed-size images and is compatible with KVM.

: For the Routing Engine (RE) VM, assign at least 1024 MB RAM and 2 vCPUs .