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[ test log FW-001 ]

do bigger packets actually help

FW-001inconclusive

mtu size vs. real-world throughput. the lab answer and the internet answer disagreed.

hypothesis

larger mtu, fewer headers, faster transfers. obvious, measurable, done by lunch.

apparatus

  • two machines
  • iperf3
  • one home router with opinions

procedure

  1. 1.baseline at mtu 1500. three runs, median kept.
  2. 2.raise mtu in steps. rerun. note where things fragment.
  3. 3.repeat across the router, because the internet is not a lab bench.

measurements

lan, mtu 1500SAMPLE VALUE
lan, mtu 9000SAMPLE VALUE
wan, any mtusee failure notes

unexpected result

failure notes

  • SAMPLE: what actually broke the clean result (fragmentation? a middlebox? the router?)

conclusion

unwritten. the test continues.

next experiment

repeat with path mtu discovery logging. write down everything.

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