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

vqfx-20.2R1.10-re-qemu.qcow2 is a virtual disk image for the Routing Engine (RE) of a Juniper vQFX switch. Cisco Learning Network

: Offers the same command-line interface as physical QFX switches for configuration and management.

This denotes . The QFX series is Juniper’s line of high-performance data center switches (e.g., QFX5100, QFX5110, QFX10000). The "v" indicates it is the virtualized version of this switching platform. Unlike a virtual MX (vMX) which acts as a router, the vQFX is designed to simulate a top-of-rack (ToR) data center switch. Vqfx-20.2r1.10-re-qemu.qcow2

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

# Start the VM dom.create()

: This is the Control Plane (RE) of the virtual switch. In a vQFX setup, this image handles the Junos OS, routing protocols, and management.

Navigate to the official GNS3 Marketplace in your web browser. vqfx-20

In some archived evaluation downloads, the file name contains 20.2 , but the actual Junos version compiled in the image may display as slightly older (e.g., 19.4R1.10 ) once booted. This is a common quirk with packaged evaluation appliances and does not hinder functionality for general lab environments.

In production, a vQFX setup also requires a separate Packet Forwarding Engine (PFE) image (e.g., vqfx-20.2R1-2019010209-pfe-qemu.qcow2 or similar) to handle data plane forwarding. The QFX series is Juniper’s line of high-performance