!full! — Vqfx202r110reqemuqcow2

: Denotes this is the Routing Engine image. vQFX typically requires two separate virtual machines to function:

Edit XML with virsh edit vqfx1 and add:

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

(Points deducted for boot speed and high RAM requirements).

Handled by vqfx-20.2R1.10-re-qemu.qcow2 . This acts as the brain of the switch. It processes control plane traffic, hosts the Junos CLI, calculates routing tables, and manages routing protocols (such as OSPF, BGP, and EVPN). : Denotes this is the Routing Engine image

One of the most important concepts to understand about vQFX is its . The vQFX is not a single VM but rather two separate virtual machines that work together:

The .qcow2 format employs copy-on-write allocation. The initial downloaded file sits at a lightweight size (~675 MB) and grows dynamically on your drive only as configuration data is added. It processes control plane traffic, hosts the Junos

Create another QEMU VM named "vQFX-PFE", assign , and select the PFE qcow image. For the PFE VM, leave the NIC type as the default e1000 and set the number of NICs to 2 .

: The "v" stands for virtual. The QFX series is Juniper’s high-performance line of data center switches.

Jenna wrote a one-line patch. Rebuilt the QCOW2 image locally. Booted again.

cp vqfx202r110reqemuqcow2 vqfx202r110reqemuqcow2-clone virt-install --name vqfx2 --ram 4096 --vcpus 2 \ --disk path=./vqfx202r110reqemuqcow2-clone,format=qcow2 --import \ --network bridge=virbr0,model=virtio