I'm seeking advice about which technology to use to classify packets for shaping in traffic control (tc). I've found at least 3 that could be used:

  • iptables MARK
  • iptables CLASSIFY
  • tc filter

Which one should I use? Is there one that is better than others?

All of those are OK to do the marking but I recommend "tc filter" because:

  • You have the rules in one place.
  • By using hashes, you can obtain a very fast classification.

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