Powered by the vqfx-20.2R1.10-re-qemu.qcow2 image. It runs the Junos OS control plane, handles routing protocols (BGP, OSPF, EVPN-VXLAN), and processes SSH/API management traffic.
Use the remaining ports labeled through xe-0/0/X on the PFE node to build your actual network data topology. Performance Optimization & Troubleshooting
. The "top" command in this context likely refers to a Linux system monitor used to troubleshoot high CPU or memory usage caused by running this resource-heavy virtual appliance. The Lab of Infinite Loops
Select and browse to your vqfx202r110reqemuqcow2 file.
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Our specific keyword highlights version 20.2R1.10 . This release sits in the 20.2 code train and is widely used in modern network labs.
Obtain the jinstall-vqfx-10-f-20.2R1.10.img (RE) and a corresponding PFE image.
Ensure the PFE and RE images are utilizing virtio drivers for disk and network to minimize virtualization overhead.
You can integrate the vQFX into GitLab Runner or Jenkins pipelines. By scripting the boot process, you can spin up a vQFX, push a configuration via Ansible, run PyTest scripts against EVPN routes, and tear it down—all automatically .
make docker-image
Junos OS compiles configurations on boot, which can cause high CPU spikes.
Deploying a high-fidelity data center fabric laboratory requires reliable virtual hardware that accurately mimics physical switches. For network engineers working within the Juniper Ecosystem, the Juniper vQFX10000
Once the virtual machine boots, the engineer logs in and wants to see how this virtual "brain" is handling the load. They drop into the underlying Linux shell and type the top command.
