Hi! On Thu, Jun 16, 2011 at 01:38:54PM +0100, Michael Foord wrote: > We've just had two reports on [email protected] about ipv6 > connectivity issues. Normally they are caused by client / route > issues, however if I try via claranet I get failures too:
It looks that python.org is not available over IPv6 again: [luk@bender:~]$ mtr --report python.org HOST: bender Loss% Snt Last Avg Best Wrst StDev 1.|-- spider1.mimuw.edu.pl 0.0% 10 0.2 0.2 0.2 0.2 0.0 2.|-- kp-mm-r3.rtr.net.icm.edu. 0.0% 10 4.9 4.4 3.8 4.9 0.3 3.|-- kp-mm-r3.rtr.net.icm.edu. 0.0% 10 4.7 4.2 3.8 4.7 0.3 4.|-- 2001:6a0:0:19::1 0.0% 10 0.7 0.7 0.7 0.8 0.1 5.|-- 2001:b10:c000:204::1 0.0% 10 10.8 6.4 5.8 10.8 1.6 6.|-- pionier-bckp.rt1.poz.pl.g 0.0% 10 5.8 5.9 5.8 6.2 0.1 7.|-- so-7-1-0.rt1.fra.de.geant 0.0% 10 18.7 18.8 18.5 20.5 0.6 8.|-- 2001:450:2002:70::1 0.0% 10 19.0 25.6 18.6 86.5 21.4 9.|-- 2001:450:2002:1e2::2 0.0% 10 27.3 30.2 27.2 55.5 8.9 10.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 11.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 12.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 13.|-- kpn-ic-135436-adm-b5.c.te 0.0% 10 48.7 48.8 48.7 48.9 0.1 14.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 > http://noc.eu.clara.net/lg.php > Router: US > Command: ping ipv6 python.org > > Sending 5, 100-byte ICMP Echos to 2001:888:2000:D::A2, timeout is 2 seconds: > ..... > Success rate is 0 percent (0/5) > > Reports below: > > It seems that your IPv6 network is down: > > [luk@bender:~]$ traceroute6 python.org # from my workplace > traceroute to python.org (2001:888:2000:d::a2), 30 hops max, 80 byte packets > 1 spider1.mimuw.edu.pl (2001:6a0:5001:1::1) 0.273 ms 0.295 ms 0.293 ms > 2 kp-mm-r3.rtr.net.icm.edu.pl (2001:6a0:4001:1::1) 4.794 ms > 4.826 ms 4.822 ms > 3 kp-mm-r3.rtr.net.icm.edu.pl (2001:6a0:1:4::1) 5.045 ms 5.069 > ms 5.254 ms > 4 2001:6a0:0:19::1 (2001:6a0:0:19::1) 1.396 ms 1.394 ms 1.401 ms > 5 2001:b10:c000:204::1 (2001:b10:c000:204::1) 6.499 ms 6.501 ms > 6.513 ms > 6 pionier-bckp.rt1.poz.pl.geant2.net (2001:798:23:10aa::5) 6.476 > ms 5.960 ms 5.975 ms > 7 so-7-1-0.rt1.fra.de.geant2.net (2001:798:cc:1401:2301::1) > 18.706 ms 18.842 ms 18.876 ms > 8 2001:450:2002:70::1 (2001:450:2002:70::1) 148.335 ms 144.553 > ms 143.525 ms > 9 2001:450:2002:1e2::2 (2001:450:2002:1e2::2) 27.310 ms 27.305 > ms 27.300 ms > 10 * * * > 11 * * * > 12 * * * > 13 kpn-ic-135436-adm-b5.c.telia.net (2001:2000:3080:6f::2) 48.579 > ms 48.601 ms 48.554 ms > 14 * * * > 15 * * * > 16 * * * > 17 * * * > 18 * * * > 19 * * * > 20 * * * > 21 * * * > 22 * * * > 23 * * * > 24 * * * > 25 * * * > 26 * * * > 27 * * * > 28 * * * > 29 * * * > 30 * * * > > > I'd like to just report that python.org (and subdomains) is not > avaiable (lost 100% packets, no ICMP responses) from some locations > over IPv6. The problem started yesterday in the evening CEST. I'm > observing the problem from the University of Warsaw network which is > one of the largest .edu networks in Poland. Traceroute6 reports: > > root@schowek:/home/accek/foo# traceroute6 pypi.python.org > traceroute to pypi.python.org (2001:888:2000:d::a8) from > 2001:6a0:5001:2:212:3fff:fe78:660, 30 hops max, 16 byte packets > 1 spider2.mimuw.edu.pl (2001:6a0:5001:2::1) 0.237 ms 0.202 ms 0.207 ms > 2 kp-mm-r3.rtr.net.icm.edu.pl (2001:6a0:4001:1::1) 4.229 ms > 4.175 ms 4.115 ms > 3 kp-mm-r3.rtr.net.icm.edu.pl (2001:6a0:1:4::1) 4.085 ms 3.824 > ms 4.079 ms > 4 2001:6a0:0:19::1 (2001:6a0:0:19::1) 6.328 ms 0.821 ms 0.736 ms > 5 2001:b10:c000:204::1 (2001:b10:c000:204::1) 6.136 ms 5.953 ms > 5.894 ms > 6 * pionier-bckp.rt1.poz.pl.geant2.net (2001:798:23:10aa::5) > 6.249 ms 5.952 ms > 7 so-7-1-0.rt1.fra.de.geant2.net (2001:798:cc:1401:2301::1) > 18.643 ms 18.661 ms 18.659 ms > 8 2001:450:2002:70::1 (2001:450:2002:70::1) 112.468 ms 76.75 ms > 18.881 ms > 9 2001:450:2002:1e2::2 (2001:450:2002:1e2::2) 44.23 ms 27.581 ms > 27.315 ms > 10 * * * > 11 * * * > 12 * * * > 13 kpn-ic-135436-adm-b5.c.telia.net (2001:2000:3080:6f::2) 49.17 > ms 49.016 ms 77.695 ms > 14 * * * > 15 * * * > 16 * * * > 17 * * * > 18 * * * > 19 * * * > 20 * * * > > It looks like a routing problem in the core IPv6. I don't know the > exact area affected, but entries like 'telia.net' or 'geant2.net' > suggest it's not a local issue. Access via some Teredo server in the > Netherlands seems ok. > > Maybe it's a good idea to drop AAAA DNS records for python.org > temporarily, especially that easy_install and such are broken on > affected networks with IPv6-enabled hosts (and automatic fallback to > IPv4 does not always work, at least in my case). > > All the best, > > Michael Foord > > -- > http://www.voidspace.org.uk/ > > May you do good and not evil > May you find forgiveness for yourself and forgive others > May you share freely, never taking more than you give. > -- the sqlite blessing http://www.sqlite.org/different.html -- pozdrawiam, Lukasz Szczesny _______________________________________________ pydotorg-www mailing list [email protected] http://mail.python.org/mailman/listinfo/pydotorg-www
