[Users] Extremely slow connection to git.claws-mail.org

Sat Sep 29 23:29:55 CEST 2018

Hello,

On Sat, 29 Sep 2018 21:19:17 +0200
Colin Leroy-Mira <colin at colino.net> wrote:

> Yeah, I just got it, and it's an unsurprising "everything's fine on our
> end, it's his ISP":

Yup, not really a surprise...

Traceroute from Online to Gobul goes thru :
 - AS12876 - ONLINE
 - Ams-IX (IP 80.249.209.32)
 - AS2914 - NTT (IP 83.217.227.5 and 83.217.227.2) 
 - AS42459 - FOBUL (IP 212.45.65.238)
 - AS41017 - GOBULNET (IP 95.169.192.3)

I don't give details of the path in Online, I don't think it's relevant.

George's path from (I guess) some Gobul-managed IP goes thry 
Level3 via Frankfurt and then Paris.
Gobul seems to be getting upstream connectivity via AS42459 (FOBUL) (Does
every Internet related company has to end its name with "obul" in
Bulgaria ? ;)
And Fobul is getting transit from :
 - AS2914 (NTT)
 - AS3257 (GTT)
 - AS25076 (ISTARLINK) - though I have some doubt for this one.

A traceroute from NTT Bulgaria (Sofia) gives :
 1   * 
    ae-12.r20.frnkge04.de.bb.gin.ntt.net (129.250.3.24) [MPLS: Label 299792 Exp 0] 25 msec  26 msec 
 2  ae-9.r02.frnkge04.de.bb.gin.ntt.net (129.250.2.142) 28 msec  29 msec  29 msec 
 3  ae-0.level3.frnkge04.de.bb.gin.ntt.net (129.250.9.6) 28 msec  29 msec  29 msec 
 4   *  *  * 
 5  212.3.235.198 45 msec  45 msec  45 msec 
 6  pni-th2-a9k1.th2.poneytelecom.eu (195.154.1.37) 39 msec  39 msec  39 msec 
 7  195.154.2.130 43 msec  42 msec  43 msec 
 8  claws-mail.org (163.172.88.172) 44 msec  44 msec  43 msec 

The same from GTT gives :

 1  xe-1-2-7.cr1-fra6.ip4.gtt.net (89.149.186.78)  27.572 ms xe-8-0-4.cr1-fra6.ip4.gtt.net (141.136.111.233)  59.017 ms xe-1-2-7.cr1-fra6.ip4.gtt.net (89.149.186.78)  27.362 ms
 2  xe-9-2-2.cr4-fra4.ip4.gtt.net (141.136.111.145)  27.628 ms  27.643 ms  27.420 ms
 3  * * *
 4  * * *
 5  212.3.235.198 (212.3.235.198)  37.366 ms  37.559 ms  37.547 ms
 6  pni-th2-a9k1.th2.poneytelecom.eu (195.154.1.37)  97.795 ms  37.421 ms  37.490 ms
 7  195.154.2.130 (195.154.2.130)  38.175 ms  37.211 ms  37.065 ms
 8  claws-mail.org (163.172.88.172)  37.121 ms  62.817 ms  37.259 ms

But 212.3.235.198 appears to be associated with Level3... So, traffic from
GTT or NTT goes to Level3, then to Online via a PNI... 

Definitely, we have some traffic assymetry going on... and a multi-hop AS
paths, which makes it globally difficult to fully diagnose, and even more
difficult to have it fixed as the three big networks involved (L3, GTT, NTT
- and Online) are not very likely to spend much time on that :( 

And worse, we still don't know if the problem is the forward or the reverse
path... And we are lacking all the beginning of George's path...

-ENODATA to continue working on that...

Paul

-- 

Paul Rolland                                E-Mail : rol(at)witbe.net
CTO - Witbe.net SA                          Tel. +33 (0)1 47 67 77 77
Les Collines de l'Arche                     Fax. +33 (0)1 47 67 77 99
F-92057 Paris La Defense                    RIPE : PR12-RIPE

LinkedIn : http://www.linkedin.com/in/paulrolland
Skype    : rollandpaul

"I worry about my child and the Internet all the time, even though she's
too young to have logged on yet. Here's what I worry about. I worry that 10
or 15 years from now, she will come to me and say 'Daddy, where were you
when they took freedom of the press away from the Internet?'"
--Mike Godwin, Electronic Frontier Foundation 

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