Vqfx202r110reqemuqcow2 Top |link|
The vqfx202r110reqemuqcow2 image is a virtual appliance that emulates the Juniper QFX series switches, specifically tailored for KVM (Kernel-based Virtual Machine) and QEMU platforms. 20.2R1.10
: The publicly available 20.2 image is known to have a versioning quirk—it reports as version 19.4 after booting. This is a known issue with the download portal; the internal software version is actually 19.4, which is important to know for feature compatibility and troubleshooting.
Run the EVE-NG wrapper script to ensure the image is bootable. /opt/unetlab/wrappers/unl_wrapper -a fixpermissions 2. Preparation in GNS3 GNS3 typically uses an appliance template ) to automate this setup. Import Template: Download the Juniper vQFX RE appliance and import it into GNS3. Manual VM Settings: If creating manually, use these parameters: 1024 MB (minimum). virtio-net-pci (Critical for RE/PFE communication). Increase to 12 (to support multiple interfaces). 3. Interconnection Requirements
: When downloading the official evaluation image labeled vqfx-20.2R1.10-re-qemu.qcow2 from Juniper, booting the image and typing the show version command reveals that the system reports itself as Junos: 19.4R1.10 limited . vqfx202r110reqemuqcow2 top
The .qcow2 format is natively supported by QEMU , making it ideal for simulation platforms like GNS3 , EVE-NG , and Cisco Modeling Labs (CML) . Core Requirements Setting Up Juniper vQFX Switch in GNS3
: Managed by the vqfx-20.2R1.10-re-qemu.qcow2 image. It runs the Junos OS control plane, handles routing protocols (BGP, OSPF), processes API calls, and handles the CLI/SSH management traffic.
When setting up your topology, applying precise QEMU flags is critical to prevent boot loops or non-responsive interfaces. Below are the optimal metadata guidelines as dictated by the GNS3 official registry appliance definition: Recommended Specification 1024 MB (Minimum) vCPUs Disk Interface IDE ( hda_disk_interface: ide ) Network Adapter VirtIO ( virtio-net-pci ) Default Credentials Username: root | Password: Juniper Architecture Advanced QEMU Flags -nographic -machine q35,smbios-entry-point-type=32 Deploying vQFX to Virtual Labs 1. Importing to GNS3 Guide: Importing Juniper vMX and vQFX into CML2.4 The vqfx202r110reqemuqcow2 image is a virtual appliance that
Download the unified Juniper vQFX RE appliance template ( .gns3a ) from the GNS3 Marketplace .
With the topology running, it’s time to log in and configure your new switch.
/opt/unetlab/wrappers/unl_wrapper -a fixpermissions Run the EVE-NG wrapper script to ensure the
: Designed to run natively inside the Quick Emulator (QEMU) open-source hypervisor.
This technical guide provides the optimal configuration steps, architectural nuances, and deployment strategies required to run the vqfx-20.2R1.10-re-qemu.qcow2 image seamlessly in QEMU environments. Dual-VM Architecture: RE vs. PFE
Once completed, pair the RE node with an equivalent vQFX-PFE node inside your EVE-NG topology canvas, mapping their internal interfaces sequentially. 2. Setup in GNS3