Vqfx-20.2r1.10-re-qemu.qcow2 [PREMIUM]

The file vqfx-20.2r1.10-re-qemu.qcow2 is a virtual disk image representing the Routing Engine (RE) component of Juniper Networks' vQFX10000 virtual switch. This specific image is based on Junos OS 20.2R1 and is designed to run in a QEMU/KVM hypervisor environment, commonly used for high-fidelity network simulation in labs like GNS3 or EVE-NG. Key Technical Architecture

1. Core Identity & Version Breakdown

• Product: Juniper vQFX (Virtual QFX Series Switch)
• Software Version: 20.2R1.10
• Component: Routing Engine (-re-)
• Format: QEMU QCOW2 (QEMU Copy-On-Write v2)

• No official support without a contract.
• High memory footprint compared to container-based routers (like cRPD).
• Not suitable for throughput testing (only control plane testing).

• Image won’t boot: confirm qemu-img info shows correct format, ensure enough RAM, check console output for kernel/Junos errors.
• Interface naming mismatch: verify NIC model (virtio vs e1000) matches what vQFX expects; adjust virtual NIC types in libvirt/QEMU.
• Performance issues: enable host CPU passthrough (–cpu host), use virtio drivers, increase vCPUs, and tune KVM/kernel network settings.

Routing Engine (RE): The vqfx-20.2R1.10-re-qemu.qcow2 file serves as the control plane, running Junos OS. It handles management, routing protocols (BGP, OSPF, EVPN/VXLAN), and configuration. Vqfx-20.2r1.10-re-qemu.qcow2

This image is robust enough to handle 50+ configuration changes without crashing, making it ideal for learning junos.junos_config module. The file vqfx-20

Name & Memory: Name it (e.g., vQFX-RE) and assign 1024 MB RAM. Product: Juniper vQFX (Virtual QFX Series Switch) Software

What is Vqfx-20.2r1.10-re-qemu.qcow2?