Gentoo Archives: gentoo-mirrors

From: Francisco Javier Lloreda Sanchez <franllo@×××××××××.es>
To: gentoo-mirrors@l.g.o
Subject: Re: [gentoo-mirrors] Problems whith bandwidth
Date: Sat, 13 Nov 2004 15:18:24
Message-Id: 200411131618.12642.franllo@alumni.uv.es
In Reply to: Re: [gentoo-mirrors] Problems whith bandwidth by Corey Shields
1 El Sábado, 13 de Noviembre de 2004 13:34, Corey Shields escribió:
2 > Francisco Javier Lloreda Sanchez wrote:
3 > | Hi!! We have having problems with the bandwidth here at linuv.uv.es
4 > | while we are syncing the new Gentoo 2004.3. The max we are reached
5 > | at this time is 100kb. For days it has been speaking with a
6 > | adminstrador of gentoo and he include to us in a list for routing
7 > | by internet2 and from that way catch near 1Mb. But for days we have
8 > | been returning to have little bandwidth.
9 > |
10 > | Could you help us?
11 > |
12 > | Thaks.
13 > |
14 > | PS: Sorry for my bad English, well google help me. ;)
15 >
16 > Can you post a traceroute to rsync.osuosl.org?
17
18 Sure, here are our tracepath to rsync.osuosl.org:
19
20 linuv root # tracepath rsync.osuosl.org
21 1: linuv.informat.uv.es (147.156.17.151) 0.183ms pmtu 1500
22 1: farsoro.red.uv.es (147.156.16.1) 1.477ms
23 2: neveral3.red.uv.es (147.156.201.6) 0.823ms
24 3: AT0-2-0-0.EB-Valencia0.red.rediris.es (130.206.211.181) asymm 4
25 0.915ms
26 4: VAL.SO3-0-0.EB-IRIS4.red.rediris.es (130.206.240.13) asymm 5 6.647ms
27 5: rediris.es1.es.geant.net (62.40.103.61) asymm 6 6.946ms
28 6: es.it1.it.geant.net (62.40.96.186) asymm 7 29.354ms
29 7: it.de2.de.geant.net (62.40.96.61) asymm 8 38.472ms
30 8: abilene-gw.de2.de.geant.net (62.40.103.254) asymm 9 132.083ms
31 9: nycmng-washng.abilene.ucaid.edu (198.32.8.84) asymm 10 152.019ms
32 10: chinng-nycmng.abilene.ucaid.edu (198.32.8.82) asymm 11 151.865ms
33 11: iplsng-chinng.abilene.ucaid.edu (198.32.8.77) asymm 12 155.185ms
34 12: kscyng-iplsng.abilene.ucaid.edu (198.32.8.81) asymm 13 164.411ms
35 13: dnvrng-kscyng.abilene.ucaid.edu (198.32.8.13) asymm 14 179.089ms
36 14: snvang-dnvrng.abilene.ucaid.edu (198.32.8.1) asymm 15 199.791ms
37 15: pos-1-0.core0.eug.oregon-gigapop.net (198.32.163.17) 211.960ms
38 16: nero.eug.oregon-gigapop.net (198.32.163.151) asymm 18 212.290ms
39 17: eugn-core1-gw.nero.net (207.98.64.168) asymm 19 212.524ms
40 18: corv-car1-gw.nero.net (207.98.64.6) asymm 20 214.216ms
41 19: rsync.osuosl.org (140.211.166.135) asymm 20 216.091ms
42 reached
43 Resume: pmtu 1500 hops 19 back 20
44
45 We are connected to Valencia University that belongs to RedIris, and RedIris
46 connects via Geant to Ablilene.
47 That is my question, why connecting via Internet2(Geant<-->Abilene) we have
48 that low bandwidth?? Any problem with the routing?
49
50 We have configured the sysctl like this to solve some problems whith the
51 routing as recommended by some gentoo stuff.
52
53 # increase Linux autotuning TCP buffer limits
54 net.ipv4.tcp_rmem = 4096 8388608 16777216
55 net.ipv4.tcp_wmem = 4096 524288 16777216
56 net.ipv4.tcp_mem = 97280 977920 9830400
57 # increase Linux TCP buffer limits
58 net.core.rmem_max = 16777216
59 net.core.wmem_max = 16777216
60 net.core.rmem_default = 131072
61 net.core.wmem_default = 131072
62 # as per http://lwn.net/Articles/92727/
63 net.ipv4.tcp_default_win_scale = 0
64
65 Thanks for all.
66
67
68 --
69 Linux localhost 2.6.8-gentoo-r3 #6 Wed Oct 6 16:31:23 CEST 2004 i686 AMD
70 Duron(tm) processor AuthenticAMD GNU/Linux

Replies

Subject Author
Re: [gentoo-mirrors] Problems whith bandwidth Scott Kveton <kveton@×××××××××××.edu>
Re: [gentoo-mirrors] Problems whith bandwidth Corey Shields <cshields@g.o>