If you need a setup for control plane access or a VXLAN EVPN configuration example using this image, just ask.
By integrating vqfx-20.2R1.10-re-qemu.qcow2 into your virtual workflow, you can successfully mimic high-performance data center switches, experiment with automation tools like Ansible or PyEZ, and master Junos without investing in physical infrastructure.
The VM spun up. Green lights blinked across her dashboard. Ten virtual data center switches—all running the buggy, pre-release version 1.1.0 of the fabric software—synchronized their clocks. Jenna had spent three weeks hunting a silent packet drop that only appeared under spine-leaf congestion with ECMP hashing. The vendor’s support had shrugged. “Works in hardware,” they said.
The vQFX mimics the performance and feature set of physical QFX10000 high-performance data center switches. It allows network architects, DevOps teams, and automation engineers to test complex BGP EVPN/VXLAN fabrics, validate Junos configurations, and build automation pipelines entirely in a virtualized environment. Architectural Overview: The Split-VM Design vqfx202r110reqemuqcow2
By default, vQFX may only display up to 10 or 12 data interfaces. However, issuing ifconfig -a on the PFE may reveal up to 52 available interfaces - these simply need to be properly configured and mapped.
Mastering the Juniper vQFX: A Deep Dive into vqfx-20.2R1.10-re-qemu.qcow2
Select vqfx-20.2R1.10-re-qemu.qcow2 as the primary disk image (Disk HDA). If you need a setup for control plane
| Field | Value | |-------|-------| | Username | root | | Password | (none – just press Enter) |
root@% cli root> configure [edit] root# set system root-authentication plain-text-password New password: [Type Your Password] Retype new password: [Type Your Password Again] Use code with caution.
For a vQFX node to work properly in a lab, the RE VM and the PFE VM must boot together and connect directly through a private, dedicated virtual interface link. Key Capabilities and Technical Specs Green lights blinked across her dashboard
This article explores what this image is, how it fits into the vQFX architecture, and how to successfully deploy it for virtual labs. What is vqfx202r110reqemuqcow2?
This is the "brain" of the switch. It runs the Junos control plane, handling protocols like BGP, OSPF, and EVPN-VXLAN. The Forwarding Engine (PFE/VFP):
qemu-img convert -f qcow2 vqfx-20.2R1.10-re-qemu.qcow2 -O raw vqfx-20.2R1.10-re-qemu.raw