iptables
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How to receive a million packets per second
tags: Network,UDP,High Performance,iptables,ethtool,netstat,NUMA source: The Cloudflare Blog. “How to Receive a Million Packets per Second,” June 16, 2015. http://blog.cloudflare.com/how-to-receive-a-million-packets/. Keys: Make sure traffic won’t be interfered with by the iptables iptables -I INPUT 1 -p udp --dport 4321 -j ACCEPT iptables -t raw -I PREROUTING 1 -p udp --dport 4321 -j NOTRACK #+end_src[[id:C471A6FF-7F4E-4E23-B070-14CE146BFA14][Multi-queue NICs]] 2. The first bottleneck + All packets are received by a signal RX queue, checked out with =ethtool -S=....