Comment 24 for bug 1373598

We experience this problem also.

$ ping -c 2 de.archive.ubuntu.com
PING ubuntu.mirror.tudos.de (141.30.13.20) 56(84) bytes of data.
64 bytes from c13020.dip.tu-dresden.de (141.30.13.20): icmp_seq=1 ttl=55 time=12.8 ms
64 bytes from c13020.dip.tu-dresden.de (141.30.13.20): icmp_seq=2 ttl=55 time=12.5 ms

--- ubuntu.mirror.tudos.de ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 12.532/12.693/12.855/0.196 ms

Sometimes it also uses the 141.30.13.10 machine, never any other machine.

We are also at a German university, and thus connected to tudos.de directly via DFN (German Research Network):

> tracepath de.archive.ubuntu.com
 1?: [LOCALHOST] pmtu 1500
 1: mikado.fim.uni-passau.de 0.364ms
 1: mikado.fim.uni-passau.de 0.353ms
 2: Transfer-Lst-Brandenburg-FW.c6006.rz.uni-passau.de 0.802ms
 3: uni-fw-1.rz.uni-passau.de 0.529ms
 4: core.rz.uni-passau.de 1.170ms
 5: xr-reg1-ge8-6.x-win.dfn.de 3.493ms
 6: cr-erl1-be5.x-win.dfn.de 7.399ms
 7: kr-dre106.x-win.dfn.de 12.860ms
 8: 141.30.1.74 21.586ms
 9: cat6k-bar.campus.urz.tu-dresden.de 12.892ms
10: c13010.dip.tu-dresden.de 14.231ms reached