root@router:~# lspci|grep -i ether
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-LM (rev 05)
01:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection
04:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)

root@router:~# ethtool -i eth1
driver: e1000e
version: 2.3.2-k
firmware-version: 0.13-4
bus-info: 0000:00:19.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no

echo 1 > /proc/irq/46/smp_affinity
echo 2 > /proc/irq/47/smp_affinity
echo 4 > /proc/irq/48/smp_affinity
echo 8 > /proc/irq/49/smp_affinity

echo "f" > /sys/class/net/eth1/queues/rx-0/rps_cpus