Many users have noted that the 20.2R1.10 evaluation file actually boots as Junos 19.4R1.10 once installed.

This creates the internal communication path that allows the RE to "program" the VFP. 3. Basic Configuration

This article targets network engineers, DevOps professionals, and virtualization specialists searching for vQFX performance monitoring techniques.

: The publicly available 20.2 image is known to have a versioning quirk—it reports as version 19.4 after booting. This is a known issue with the download portal; the internal software version is actually 19.4, which is important to know for feature compatibility and troubleshooting.

The vqfx202r110reqemuqcow2 image is a powerful tool, but you may encounter some issues. Here are solutions to a few common problems:

: Handled by this vqfx202r110reqemuqcow2 image. It runs the Junos OS control plane, handles routing protocols (BGP, OSPF, EVPN), and processes management traffic.

This specific image string breaks down into a distinct naming convention used for virtualization platforms:

Engineers building automated environments, such as Containerlab, explicitly advise renaming this file to reflect the true 19.4 version internally to bypass deployment health check errors. Deploying the Image across Major Platforms 1. Integration in EVE-NG

Essay: The Role of Virtual Lab Images in Network Engineering

last pid: 47892; load averages: 0.23, 0.40, 0.32 34 processes: 1 running, 33 sleeping CPU: 4.2% user, 0.0% nice, 6.8% system, 1.1% interrupt, 87.9% idle Mem: 945M Active, 218M Inact, 245M Wired, 98M Buf, 2180M Free

: 20.2R1.10 (though some versions labeled 20.2 may actually report as 19.4R1.10 after installation).

. Create a new topology, add both a vQFX RE and a vQFX PFE node, and connect them using their em1 interfaces.