| Field | Value | |-------|-------| | | vqfx202r110reqemuqcow2 | | Device | Juniper vQFX (virtual QFX series switch) | | Version | 20.2R1.10 | | Format | QCOW2 (QEMU Copy-On-Write) | | Use case | EVE-NG, GNS3, or manual QEMU/KVM lab environments |
Here is a long write-up detailing what this specific image is, its role in virtual networking, and how to deploy it.
The string vqfx202r110reqemuqcow2 top encapsulates a complete network engineering workflow: understanding Juniper’s virtual switch architecture, leveraging the 20.2R1.10 release for its reliability, using qcow2 for flexible disk management, and finally, using top to keep the hypervisor healthy.
+----------------------- LAB ENVIRONMENT -----------------------+ | | | +------------------+ +------------------+ | | | vQFX RE | em1 | vQFX PFE | | | | (Control Plane) |-------------| (Data Plane) | | | +------------------+ +------------------+ | | | | | | (em0) (em0) | | | | | +------------+--------------------------------+-----------------+ | | [Management Bridge] [Management Bridge] The Version Discrepancy Paradox vqfx202r110reqemuqcow2 top
Powered by a companion image (typically named vqfx-20.2R1-2019010209-pfe-qemu.qcow or similar). This VM emulates the switching ASIC, handling packet forwarding, ACLs, and interface line-rate behaviors.
One of the most popular iterations for modern labs is the QEMU image. Here is everything you need to know about setting up and troubleshooting this powerful virtual appliance. Why the vQFX 20.2R1.10?
top -p $(pgrep -f "vqfx202r110reqemuqcow2") | Field | Value | |-------|-------| | |
: 20.2R1.10 (though some versions labeled 20.2 may actually report as 19.4R1.10 after installation).
qemu-img convert -f qcow2 vqfx-20.2R1.10-re-qemu.qcow2 -O raw vqfx-re.raw
: Because the vQFX emulates hardware ASICs in software, it is highly CPU-intensive. CPU Spikes This VM emulates the switching ASIC, handling packet
topology: kinds: juniper_vqfx: image: vrnetlab/vr-vqfx:20.2R1.10 nodes: vqfx1: kind: juniper_vqfx sudo containerlab deploy -t vqfx-lab.yml
: Performance often degrades significantly if CPU utilization exceeds 80%. 4. Basic Configuration Default Credentials (Note: case-sensitive). Initial Setup
mv vqfx-20.2R1.10-re-qemu.qcow2 hda.qcow2