std::stringcmd=fmt::format("ip link set dev {0} down > /dev/null 2>&1; ip link del {0} > /dev/null 2>&1; sync; sleep 1; ip link add {0} type dummy; ip link set dev {0} up",PDN_INTERFACE_NAME);
std::stringcmd=fmt::format("ip link set dev {0} down > /dev/null 2>&1; ip link del {0} > /dev/null 2>&1; sync; sleep 1; ip link add {0} type dummy; ethtool -K {0} tx-checksum-ip-generic off; ip link set dev {0} up",PDN_INTERFACE_NAME);