Vqfx-20.2r1.10-re-qemu.qcow2 Jun 2026

If the RE starts in a "non-master" role, a common workaround is to use the command request virtual-chassis reactivate or reboot both the RE and PFE simultaneously. Guide: Importing Juniper vMX and vQFX into CML2.4

To build a functional vQFX switch in a simulator, you must interconnect one RE VM and one PFE VM using an internal communication link (typically mapped to the first network interface of both nodes). Decoding the Filename: vqfx-20.2r1.10-re-qemu.qcow2

You must perform a graceful shutdown using the Junos CLI command request system power-off . The RE writes critical state information to disk; a hard shutdown can corrupt the image, requiring a full re-creation of the node.

This command provides information about the image. Vqfx-20.2r1.10-re-qemu.qcow2

Access your EVE-NG CLI via SSH and create a directory under the standard QEMU path. The folder name must begin with the prefix vqfxre- . mkdir -p /opt/unetlab/addons/qemu/vqfxre-20.2r1.10/ Use code with caution. Step 3.2: Upload and Rename the Image

: To have a functional switch, this image must be paired with a PFE (Packet Forwarding Engine) image (usually named something like vqfx-20.2r1.10-pfe-qemu.qcow2 ). Standard Deployment Specifications According to Juniper's technical documentation for vQFX: vCPU : 1 for the RE. RAM : 2 GB (minimum) for the RE. Interfaces : em0 : Management interface.

The vQFX architecture is split into two distinct virtual machines to mimic real hardware: If the RE starts in a "non-master" role,

Specifies the Junos OS software release (Release 20.2, Revision 1, Service Build 10).

The filename Vqfx-20.2r1.10-re-qemu.qcow2 can be broken down into several components:

Integrate the lightweight virtual RE into automated Jenkins or GitLab pipelines to pre-parse syntactic configuration adjustments before deployment to production environments. Share public link The RE writes critical state information to disk;

Select the vqfx-20.2r1.10-re-qemu.qcow2 entry for the Routing Engine.

Why this matters: Version 20.2 is a stable, long-lived branch. It supports EVPN-VXLAN, MPLS, and advanced data center fabrics. Knowing the version allows you to match features with official Juniper documentation (TechLibrary).

A vQFX requires separate virtual machines to function. You have the RE (Control Plane), but you also need the vPFE (Packet Forwarding Engine) image.

Every time a new image file is manually introduced to EVE-NG, permissions must be recalculated to prevent execution errors: /opt/unetlab/wrappers/unl_wrapper -a fixpermissions Use code with caution. Step 3.4: Complementary PFE Image Setup