MAPRG IETF 104 Thuesday 28 March 2019 ===================================== Notes by Brian Trammell Heads-up talk: Micro Dependability Measurements - Olav Kvittem -------------------------------------------------------------- Performance of web protocols over satellite links - Joerg Deutschmann --------------------------------------------------------------------- Aaron Falk: Can you say something about the services the operators are offering here? Joerg: COmparable pricepoints, 20-30Mb down. No information about how the operator network was built at layer 2, this would explain differences Praveen Balasubramanian: Can you do TCP measurement without going through the pipe? Joerg: Not as an end user, there is a UDP dela Giovane Moura: Any public measurement platforms like Atlas that are on satellite? Joerg: We have an Atlas probe Gabriel Montenegro: Work to make QUIC satellite-aware; did you experiment with those mechanisms, or is this off the shelf QUIC? Joerg: Off the shelf. DNS Observatory - Pawel Foremski & Oliver Gasser ------------------------------------------------ Alex Meyrhofer: function that allows me to estimate traffic change by TTL change? Oliver: already planned Peter: Happy Eyeballs generates lots of no data, might it make sense if servers split nodata and nxdomain? Oliver: Yes. Brian Trammell: can we see DNSSEC^RPKI as well please? EDNS Compliance Status of Resolvers - Jeisson Sánchez ----------------------------------------------------- Peter Van Dijk: You're testing with +noreq, which might not test EDNS. The number of refused makes me sad. I have DNS Flag Day stickers. John Reid?: Can you correlate behavior you found with cohorts like consumer/business ISPs, vendors? Are raw data available? Tale Lawrence: One thing about REFUSED answers is that REFUSED is overloaded. For client-subnet, REFUSED means no extension, come back without. Don't know if any major resovler vendors do chain query. Have you looked at Mark Andrews' work here? Mirja: Can you send updated data to the mailing list, or send additional information there? FloodBox - Runa Barik --------------------- Jen Linkova: how do you define links between ASs? there are aliasing issues at peering link. Runa: We do see cases like this. Gorry: You talked about CS0 on the first slide, and CS1 later. Runa; All latency improvement is relative to CS0. Gorry: That's fun. Relevant for LE data point Native SCTP, DCCP, UDP-Lite and Home Gateway NATs - Runa Barik -------------------------------------------------------------- Ian Swett: What was the timeout for dl5 on slide 8? Runa: 30 seconds Gorry: I like pseudoheader checksums. Did you try the CCO trick? Runa: No.