This looks like a for a virtual network device, specifically a vQFX (virtualized Juniper QFX Series switch).
This image is used for:
qemu-system-x86_64 \ -name vqfx-re \ -m 4096 \ -smp 2 \ -drive file=Vqfx-20.2r1.10-re-qemu.qcow2,if=ide,index=0 \ -netdev user,id=mgmt,net=192.168.76.0/24,dhcpstart=192.168.76.10 \ -device e1000,netdev=mgmt \ -nographic \ -serial telnet:127.0.0.1:5001,server,nowait Vqfx-20.2r1.10-re-qemu.qcow2