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Outrageous internal packetloss.


Andrei
07-31-2011, 02:02 AM
Greetings,

Lately I have been experiencing "jitters", so I decided to run some mtr reports off a couple of servers. Turns out, the internal network loss on th1-1-6k.fr.eu and th2-1-6k.fr.eu is ridiculously high. Honestly, anything above 1% within the local network is unacceptable as this is not dialup!

What is the reason for the high loss? When is the planned resolution?

First tests are done off a EG box:

ubadmin@esxvm1:~$ mtr -r -c 50 www.google.com
HOST: esxvm1 Loss% Snt Last Avg Best Wrst StDev
1. 188.165.226.253 4.0% 50 0.7 18.8 0.4 202.8 45.1
2. rbx-g2-a9.fr.eu 0.0% 50 0.8 0.9 0.6 6.1 0.7
3. th1-1-6k.fr.eu 70.0% 50 4.1 10.6 4.1 99.8 24.7
4. th2-1-6k.fr.eu 76.0% 50 4.2 5.0 4.2 10.5 1.9
5. google.as15169.fr.eu 0.0% 50 4.3 7.8 4.3 70.8 11.9
6. 72.14.238.228 0.0% 50 4.3 9.1 4.3 75.4 14.3
7. 209.85.248.95 0.0% 50 11.8 13.2 11.3 31.2 4.4
8. 72.14.236.21 0.0% 50 11.5 18.6 11.0 109.1 21.4
9. 209.85.254.57 0.0% 50 11.7 16.7 11.4 24.8 4.4
10. fra07s07-in-f104.1e100.net 0.0% 50 11.5 11.7 11.5 12.0 0.1
ubadmin@esxvm1:~$ mtr -r -c 50 www.ovh.fr
HOST: esxvm1 Loss% Snt Last Avg Best Wrst StDev
1. 188.165.226.253 60.0% 50 12.9 20.7 0.4 233.1 55.7
2. rbx-g2-a9.fr.eu 0.0% 50 0.8 0.9 0.6 3.4 0.4
3. th1-1-6k.fr.eu 14.0% 50 4.2 21.1 4.1 187.1 44.5
4. p19-7-6k.fr.eu 28.0% 50 8.2 11.5 4.2 165.9 30.7
5. www.ovh.fr 0.0% 50 4.2 4.2 4.1 4.5 0.1
ubadmin@esxvm1:~$

Second tests are done off a Kimsufi:

root@xlr:~# mtr -r -c 50 www.ovh.fr
HOST: xlr Loss% Snt Last Avg Best Wrst StDev
1. 94.23.193.253 4.0% 50 0.8 9.1 0.3 202.4 31.0
2. rbx-g1-a9.fr.eu 0.0% 50 0.7 0.9 0.5 1.7 0.2
3. gsw-2-6k.fr.eu 2.0% 50 4.1 11.4 3.8 180.2 34.5
4. p19-2-6k.fr.eu 0.0% 50 5.4 12.4 4.0 186.3 31.1
5. www.ovh.fr 0.0% 50 4.0 4.1 3.9 5.2 0.3
root@xlr:~# mtr -r -c 50 www.google.com
HOST: xlr Loss% Snt Last Avg Best Wrst StDev
1. 94.23.193.253 0.0% 50 0.3 13.1 0.3 189.3 38.2
2. rbx-g2-a9.fr.eu 0.0% 50 0.9 1.1 0.6 11.4 1.5
3. th1-1-6k.fr.eu 34.0% 50 4.2 8.4 4.0 105.2 17.7
4. th2-1-6k.fr.eu 16.0% 50 4.4 14.9 4.1 294.5 46.8
5. google.as15169.fr.eu 0.0% 50 4.4 6.8 4.2 47.8 8.0
6. 72.14.238.234 0.0% 50 5.6 8.0 4.4 44.3 10.1
7. 72.14.233.105 0.0% 50 11.3 14.5 11.1 46.2 7.1
8. 72.14.239.63 0.0% 50 10.9 20.0 10.8 139.7 24.7
9. 209.85.254.41 0.0% 50 19.8 17.3 11.4 25.1 4.7
10. fra07s07-in-f105.1e100.net 0.0% 50 11.8 11.8 11.2 17.0 0.9
root@xlr:~#

This is not the result of a router dropping ICMP. If that would have been the case then it would have been 100% packetloss across the board for that hop with no responses received. Obviously this is an internal issue which needs to be resolved.

Best regards,
Andrei