Always fun to see ping-porn, I have a huge trove myself ;-) And same, a big thanks to everyone, including you Seb.
Best regards, Jonathan Foulkes > On Jun 10, 2020, at 6:01 AM, Sebastian Moeller <[email protected]> wrote: > > Dear All, > > I use free thinkbroadband's, latency/availability monitoring (broadban > quality monitoring BQM, free after a free registration*)service, which runs > ICMP probes from a dedicated box in London IIRC against all registered > IPv4-addresses/domain names. Yesterday, my dsl-modem and the DSLAM decided > they do not like each other and the modem was in idle_request status for > several hours from afternoon to evening. Interstingly the latency probe was > continuing, but now not against may router, but against the german > Telefonica/O2 customer who got my old dynamic IP address assigned: > > <a title="Broadband Ping" > href="https://www.thinkbroadband.com/broadband/monitoring/quality/share/889b0c5ebab7cd432400d55e6c414b6f6658e278-09-06-2020 > > <https://www.thinkbroadband.com/broadband/monitoring/quality/share/889b0c5ebab7cd432400d55e6c414b6f6658e278-09-06-2020>"><img > alt="My Broadband Ping - sesaokjole" > src="https://www.thinkbroadband.com/broadband/monitoring/quality/share/889b0c5ebab7cd432400d55e6c414b6f6658e278-09-06-2020.png > > <https://www.thinkbroadband.com/broadband/monitoring/quality/share/889b0c5ebab7cd432400d55e6c414b6f6658e278-09-06-2020.png>" > /></a> > > As a belts AND suspenders measure I also try to attach an image, but am not > sure whether the list will like that... > <889b0c5ebab7cd432400d55e6c414b6f6658e278-09-06-2020.png> > > > From 12:30 to ~21:00 on the plot my modem was out of sync and hence these > probes must have been reflected from somebody else's router in Germany in the > same ISP's network as my link. As the green, blue and yellow lines indicate > that access link suffers much worse from variable latency (and from 19:30 - > 21:00 also from some packet loss). I believe I have forgotten how bad > internet access can be without competent AQM to make performance under load > acceptable. > > So here is to all who worked hard to diagnose, understand and to remedy > bufferbloat. > > Best Regards > Sebastian > > > *) This is similat to dslreports smokeping service, except it is closer for > european users and it allows domain names instead of fixed IP-addresses and > will by default run wiyhout a time limit, the reporting is not half as nice > as with dslreports, but for free it is quite marvelous. > _______________________________________________ > Bloat mailing list > [email protected] > https://lists.bufferbloat.net/listinfo/bloat
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