net.ipv4.tcp_ecn=1
net.netfilter.nf_conntrack_helper=1
net.ipv4.tcp_slow_start_after_idle=30
net.ipv4.tcp_no_metrics_save=1
net.ipv4.tcp_fack=1
net.ipv4.tcp_moderate_rcvbuf=0
net.ipv4.tcp_retries2=3