FastClick and Beyond: A Look at High-Speed Software Dataplanes and Their Upcoming Challenges

" summary

Covers building 100-Gbps-capable network functions (router, load‑balancer, firewall, NAT, DPI, IDS) using FastClick with DPDK or Netmap, and surveys the evolution of graph-based software dataplanes from Click to VPP and BESS. Explains the challenge that multi‑hundred‑Gbps packet rates make memory accesses (L3 cache time) a bottleneck, and presents PacketMill: tighter DPDK integration to shrink memory footprint plus a pipeline and compiler-like graph-derived data structures to cut instruction counts, with these optimizations applied to FastClick.

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