echo "===Install netperf before test begin!!!==="
cp /etc/apt/sources.list /etc/apt/sources.list_bkp
cp /etc/resolv.conf /etc/resolv.conf_bkp
echo "===Install netperf before test begin!!!==="
cp /etc/apt/sources.list /etc/apt/sources.list_bkp
cp /etc/resolv.conf /etc/resolv.conf_bkp