If your interfaces inside the Junos CLI ( ge-0/0/0 , ge-0/0/1 , etc.) remain stubbornly in a down or present but un-routable state, the internal control link between the RE and VFE VMs is broken.
A Linux Bridge or OVS bridge (e.g., br0 ) for the management interface. 3. Step-by-Step Installation: Exclusive QEMU/KVM Workflow
This is your vqfx-20.2R1.10-re-qemu.qcow2 file. It runs the Junos CLI.
show version show system virtual-instance # (if multi-tenant) show evpn instance # (if EVPN configured) show configuration | grep exclusive # (placeholder – Junos does not have "exclusive" keyword; used here to indicate custom deployment) vqfx202r110reqemuqcow2 exclusive
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In network emulation platforms (EVE‑NG, GNS3, PnetLab): If your interfaces inside the Junos CLI (
The file name is an alphanumeric string containing critical metadata about the underlying software package. Breaking down the components reveals exactly what the image contains:
20.2R1.10 indicates a specific maintenance release of Junos OS 20.2.
While physical switches integrate all components into one chassis, the virtual vQFX separates them to run more efficiently on standard server hardware. Share public link : In network emulation platforms
Expect the demand for to persist until at least 2026, as it is the last lightweight version before the platform shifted to heavy containerized architectures.
virsh define vqfx-exclusive.xml virsh start vqfx-exclusive virsh console vqfx-exclusive
If the RE cannot see the PFE, check that the cosim image is running and that both VMs are using the same bridge for communication.