[Unit]
Description=vector packet processing engine
After=network.target

[Service]
Type=simple
ExecStartPre=-/bin/rm -f /dev/shm/db /dev/shm/global_vm /dev/shm/vpe-api 
ExecStartPre=-/sbin/modprobe igb_uio
ExecStart=/usr/bin/vpp -c /etc/vpp/startup.conf
ExecStopPost=/bin/rm -f /dev/shm/db /dev/shm/global_vm /dev/shm/vpe-api 
Restart=always

[Install]
WantedBy=multi-user.target