netmap2DDOS MITIGATION WITH NETMAP AND RUST 45 days later WHAT’STHE PROBLEM AGAIN? • TCP 3-way handshake • kernel can’t handle the load HOW DO WE SOLVE IT? • developing our own solution from scratch using userland networking HOW DO WE SOLVE IT? WHERE WE LEFT LASTTIME • 5M SYN packets, 16 cores utilised A CHALLENGER APPEARS WHY SO SLOW? • we’re so slow, kernel developers are catching up • that’s no good W
