Hi Sebastian, December 13, 2019 3:15 PM, "Sebastian Moeller" <[email protected]> wrote:
> Hi Thibaut, > > so ADSL is both special and precious, may I recommend to follow the > instructions on > https://github.com/moeller0/ATM_overhead_detector? I will give it a try. > This will either confirm the overhead settings, > or more likely "explode" if the freeebox truely tunnels all IPv4 data through > IPv6. It does, this is a confirmed fact (and in fact trying to connect with my VDSL modem the DSLAM only speaks IPv6: I could tcpdump encapsulated frames from the BR containing IPv4 data that were destined to other subscribers - an unpleasant side effect of map-t "shared IPv4": by default free splits every IPv4 between 4 subscriber (by splitting the port range). You have to actively ask for a "full stack IP" to turn that off). > In both cases > the results should be interesting. As a quick test, what is the textual > output from the "Share Your > Results" box on https://www.speedguide.net/analyzer.php? I'll report when the buildslave is done uploading :) > I would not be amazed if the issue might be related to having a whoping 40 > bytes more of > unaccounted for per-packet-overhead (in combination with ATM/AAL5's lovely > per packet padding). But > that might all be moot if it is/was caused by a kernel issue. *nod* Thanks, Thibaut _______________________________________________ Cake mailing list [email protected] https://lists.bufferbloat.net/listinfo/cake
