Re: 30% packet loss between cox.net and hetzner.de, possibly at tinet.net

[Denys Fedoryshchenko <denys () visp net lb>]

On 2013-04-07 02:20, Constantine A. Murenin wrote:

> Although hetzner.de claims that this whole loss is outside of their 
> own
> network, I'm inclined to deduce that the loss might actually be
> concentrated on their own KPN / eurorings.net router --
> kpn-gw.hetzner.de (134.222.107.21), and perhaps occurs only
> in one direction.
I think too. Btw as i said, have host on tinet, and it is 100% clear 
from EC2.
So seems tinet is fine for sure.

HOST: ip-10-203-61-X                                Snt   Rcv Loss%   
Best Gmean   Avg  Wrst StDev
  1.|-- ip-10-203-60-2.ec2.internal                 60    60  0.0%    
0.3   0.6   1.1  19.1   2.7
  2.|-- ip-10-1-36-21.ec2.internal                  60    60  0.0%    
0.4   0.6   0.8   9.3   1.3
  3.|-- ip-10-1-34-0.ec2.internal                   60    60  0.0%    
0.4   0.7   1.0  14.5   2.0
  4.|-- 100.64.20.43                                60    60  0.0%    
0.4   0.6   0.6   2.0   0.2
  5.|-- ???                                         60     0 100.0    
0.0   0.0   0.0   0.0   0.0
  6.|-- ???                                         60     0 100.0    
0.0   0.0   0.0   0.0   0.0
  7.|-- ???                                         60     0 100.0    
0.0   0.0   0.0   0.0   0.0
  8.|-- 100.64.16.157                               60    60  0.0%    
0.5   2.4   9.7  68.8  16.1
  9.|-- 72.21.222.154                               60    60  0.0%    
1.5   1.9   2.6  36.4   4.8
 10.|-- 72.21.220.46                                60    60  0.0%    
1.5   2.1   3.3  59.2   7.6
 11.|-- xe-7-2-0.was10.ip4.tinet.net                60    60  0.0%    
1.6   2.1   2.6  17.2   3.1
 12.|-- xe-0-1-0.fra23.ip4.tinet.net                60    60  0.0%   
92.2  92.8  92.8 104.3   1.9
 13.|-- ge-1-1-0.pr1.g310.fra.de.eurotransit.net    60    60  0.0%   
92.2  93.1  93.2 112.8   3.3
 14.|-- ???                                         60     0 100.0    
0.0   0.0   0.0   0.0   0.0
last hop icmp blocked, it is my host


> Although there is no traffic loss from he.net if you try to traceroute
> the router itself (I'm not sure what that means, though, other than a
> potential attack vector from exposing a router globally like that):
I don't think there is attack vector, proper control plane ACL will 
make them safe.

> I've been a fan of hetzner.de, but I think it's staggering that
> they won't do anything about this huge and persistent packet loss.
Indeed, i noticed that transfers from EC2 are terrible last days to 
Hetzner.

Maybe worth to open topic at www.webhostingtalk.com ?

> Best regards,
> Constantine.

---
Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.