You provide only the RE image. The script automatically generates a lightweight, matching PFE instance. It spins up both QEMU instances simultaneously.
: Powered by a companion image (typically a cosim QEMU or Docker file). It simulates the hardware ASIC, processing packet forwarding, switching logic, and actual data plane traffic. 2. The Great vQFX Version Discrepancy Guide: Importing Juniper vMX and vQFX into CML2.4 vqfx202r110reqemuqcow2 top
Imagine you’re testing an EVPN-VXLAN fabric with 4 vQFX 20.2R1.10 spines and 8 leaves. Your physical host has 32 cores and 128GB RAM. After 24 hours, the lab slows down. You provide only the RE image
Powered by a companion image (typically named vqfx-20.2R1-2019010209-pfe-qemu.qcow or similar). This VM emulates the switching ASIC, handling packet forwarding, ACLs, and interface line-rate behaviors. processing packet forwarding
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