How-to guides

Goal-oriented recipes. Each assumes you've done the Quickstart and know the basics; here we tackle real jobs end to end.

• Performance & line-rate testing

  Push measured, repeatable load at a device and account for every packet.

• Fast-path backends

  Wire-rate transmission on commodity NICs with io_uring, AF_XDP, or netmap.

• Rewriting packet headers

  Retarget a capture at your lab: MACs, IPs, ports, VLANs, DLT.

• Splitting client/server traffic

  Drive an in-line device with a two-NIC, direction-aware replay.

• Replaying a TCP session to a live server

  Exercise a real server up the full stack with tcpliveplay.