Gentoo Archives: gentoo-mirrors

From: Corey Shields <cshields@g.o>
To: gentoo-mirrors@l.g.o
Subject: Re: [gentoo-mirrors] Problems whith bandwidth
Date: Sat, 13 Nov 2004 15:53:55
Message-Id: 41962E5E.9080202@gentoo.org
In Reply to: Re: [gentoo-mirrors] Problems whith bandwidth by Francisco Javier Lloreda Sanchez
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Francisco Javier Lloreda Sanchez wrote:

| Sure, here are our tracepath to rsync.osuosl.org:
|
| linuv root # tracepath rsync.osuosl.org 1:  linuv.informat.uv.es
| (147.156.17.151)                  0.183ms pmtu 1500 1:
| farsoro.red.uv.es (147.156.16.1)                       1.477ms 2:
| neveral3.red.uv.es (147.156.201.6)                     0.823ms 3:
| AT0-2-0-0.EB-Valencia0.red.rediris.es (130.206.211.181) asymm  4
|  0.915ms 4:  VAL.SO3-0-0.EB-IRIS4.red.rediris.es (130.206.240.13)
| asymm  5   6.647ms 5:  rediris.es1.es.geant.net (62.40.103.61)
| asymm  6   6.946ms 6:  es.it1.it.geant.net (62.40.96.186)
| asymm  7  29.354ms 7:  it.de2.de.geant.net (62.40.96.61)
| asymm  8  38.472ms 8:  abilene-gw.de2.de.geant.net (62.40.103.254)
| asymm  9 132.083ms 9:  nycmng-washng.abilene.ucaid.edu
| (198.32.8.84)        asymm 10 152.019ms 10:
| chinng-nycmng.abilene.ucaid.edu (198.32.8.82)        asymm 11
| 151.865ms 11:  iplsng-chinng.abilene.ucaid.edu (198.32.8.77)
| asymm 12 155.185ms 12:  kscyng-iplsng.abilene.ucaid.edu
| (198.32.8.81)        asymm 13 164.411ms 13:
| dnvrng-kscyng.abilene.ucaid.edu (198.32.8.13)        asymm 14
| 179.089ms 14:  snvang-dnvrng.abilene.ucaid.edu (198.32.8.1)
| asymm 15 199.791ms 15:  pos-1-0.core0.eug.oregon-gigapop.net
| (198.32.163.17) 211.960ms 16:  nero.eug.oregon-gigapop.net
| (198.32.163.151)         asymm 18 212.290ms 17:
| eugn-core1-gw.nero.net (207.98.64.168)               asymm 19
| 212.524ms 18:  corv-car1-gw.nero.net (207.98.64.6)
| asymm 20 214.216ms 19:  rsync.osuosl.org (140.211.166.135)
| asymm 20 216.091ms reached Resume: pmtu 1500 hops 19 back 20

This looks like it is a bottleneck across the pond..  I'm seeing the
same bottleneck when I trace back via a different site on Internet2.

Last I knew, GEANT had multiple 10 gige to new york (via the
Netherlands), and that is where it peers Abilene.  The link is not
saturated by any means[1], and GEANT looks to be fine as well[2].  If
the problem persists I can talk to some people in Abilene on Monday.
Most of them are still at the SC04 conference tearing down the network
there this weekend.

Cheers,

- -Corey

[1] -
http://stryper.uits.iu.edu/abilene/summary.cgi?network=nycm-geant-newyork&data=bits
[2] - http://stats.geant.net/usagemap/usagemap

- --
Corey Shields
Gentoo Linux Infrastructure Team and Devrel Team
Gentoo Foundation Board of Trustees
http://www.gentoo.org/~cshields
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