we have Linux VM red hat 7.2 version with two LAN interfacesthe Linux machines are ruining on ESXi - 5.5.0and we have very strange issue ,the conflict is between the ifconfig command to ethtool command results!why the results from ethtool isn't indicates on dropping problem on eth1while from ifconfig I get the indicates that dropping problem exist on eth1?( see ifconfig - increasing of numbers on dropped indicates on dropping error )   # ethtool -S eth1 | grep -i drop   drv dropped tx total: 0   drv dropped tx total: 0   drv dropped rx total: 0   drv dropped rx total: 0ifconfig results on eth1:    # ifconfig -a | grep RX | grep dropped    RX errors 0  dropped 123136  overruns 0  frame 0    RX errors 0  dropped 140938047  overruns 0  frame 0    RX errors 0  dropped 0  overruns 0  frame 0    # ifconfig -a | grep RX | grep dropped    RX errors 0  dropped 123136  overruns 0  frame 0    RX errors 0  dropped 140938083  overruns 0  frame 0  <--------------  after second    RX errors 0  dropped 0  overruns 0  frame 0second - is it true to except the results from ethtool as real results while the results from ifconfig actually inst indicate on problem? remark - drooping problem are only displayed on Linux version 7.x and not on the other Linux version as 6.x or 5.x 
Linux + why dropping issue displayed from ifconfig but not from ethtool?
linux;rhel;network interface;ifconfig;systemd networkd