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Juniper vQFX switches in EVE-NG

vQFX comes installed in your CloudLabBox workspace as routing engine and packet forwarding engine images that you pair up. Use it to practise QFX data centre switching, IP fabrics and EVPN-VXLAN in Junos.

Choose a planCheck it in the free demo

Vendor
Juniper
In Add Node
15 images
Templates
vqfxre vqfxpfe
Newest
vqfxre-10K-F-20.3R1.8

Installed versions

Every vQFX name in the Add Node image list, exactly as you’ll pick it.

Template vqfxre

vQFX RE (routing engine)

8 images on this template. Newest first.

  • vqfxre-10K-F-20.3R1.8
  • vqfxre-10K-F-20.2R1.10
  • vqfxre-10K-F-19.4R1.10
  • vqfxre-10K-F-18.4R2.S2.3
  • vqfxre-10K-F-18.4R1.9
  • vqfxre-10K-F-18.1R3-S5.3
  • vqfxre-10K-F-17.4R1.16

Also installed, listed by name:

  • vqfxre-15.1

Template vqfxpfe

vQFX PFE (forwarding engine)

7 images on this template. Newest first.

  • vqfxpfe-10K-F-20.3R1.8
  • vqfxpfe-10K-F-20.2R1.10
  • vqfxpfe-10K-F-19.4R1.10
  • vqfxpfe-10K-F-18.4R2.S2.3
  • vqfxpfe-10K-F-18.4R1.9
  • vqfxpfe-10K-F-18.1R3-S5.3
  • vqfxpfe-10K-F-17.4R1.16

Add it to a lab

In Add Node, choose the template, then the image. The template fills in these settings; change them before you start the node.

Add Node defaults for vQFX, read from the EVE-NG templates on 28 October 2026
ImageTemplateCPURAMInterfacesConsole
vQFX RE (routing engine)vqfxre23072 MB15 interfacestelnet
vQFX PFE (forwarding engine)vqfxpfe12048 MB2 interfacesVNC

EVE-NG admits a node by the CPU and RAM set on it, so a running node counts against your plan at these values. The largest of these templates starts nodes at 2 vCPU and 3,072 MB, which fits the free demo’s 6 vCPU and 8 GB, so you can start one there and open its console.

See default usernames and passwords Read every node tip

Two vQFX switches with EVPN-VXLAN

Pair an RE with a PFE for each switch, link the switches with an eBGP underlay, and run EVPN-VXLAN on top so Alpine hosts in the same VLAN reach each other across the pair.

The RE opens a telnet console and is where you configure Junos; the PFE's template uses VNC.

  • 2×vQFX RE (routing engine) vqfxre2 vCPU, 3072 MB each
  • 2×vQFX PFE (forwarding engine) vqfxpfe1 vCPU, 2048 MB each
  • 2×Alpine Linux clbalpinebase2 vCPU, 512 MB each

Added with these defaults, the lab uses 10 vCPU and 11 GB of RAM. The smallest plan that fits is Standard, with 12 vCPU and 16 GB: £5 a day, or £1.25 an hour On-Demand.

Choose a planGive nodes more CPU or RAM and you add that instead.

Licences are yours to bring

CloudLabBox doesn't provide Juniper licences or support entitlements. If an exercise needs a licensed Junos feature, bring your own licence or a Juniper evaluation.

The images run only inside your CloudLabBox workspace; they aren’t available to download.

Questions about vQFX

What is Juniper vQFX?

vQFX is Juniper's virtual QFX10000 data centre switch, run as two linked nodes: the RE (routing engine, running Junos) and the PFE (packet forwarding engine).

Why does each vQFX need two nodes?

Juniper builds vQFX from a routing engine, which runs Junos, and a packet forwarding engine. Add them from the vqfxre and vqfxpfe templates and pair images with the same release name, for example vqfxre-10K-F-20.3R1.8 with vqfxpfe-10K-F-20.3R1.8.

How many interfaces does a vQFX switch have in EVE-NG?

The vqfxre template adds the routing engine with 15 interfaces and the vqfxpfe template adds the forwarding engine with 2. Your data links go on the routing engine.

Which vQFX images are installed?

15 images (8 vQFX RE (routing engine), 7 vQFX PFE (forwarding engine)), all listed on this page exactly as Add Node shows them. The newest is vqfxre-10K-F-20.3R1.8.

How much CPU and RAM does a vQFX node use?

When you add one, the vqfxre template adds 2 vCPU and 3072 MB of RAM; the vqfxpfe template adds 1 vCPU and 2048 MB of RAM. You can change both in Add Node, and your plan counts what each running node is set to.

More images

CloudLabBox is independent of the vendors named on this page. Their names identify the images in the workspace’s Add Node list.