[opensuse] outgoing tcp connections are limited to 200 kb/s, how to fix?
Dear all, since a reboot about two weeks ago, on a server I use, all outgoing tcp connections are limited to about 200 kb/s. Incoming tcp and udp both ways is fine (1 GB/s) and also when using multiple connections simultaneously higher bandwidths can be reached. The server is running 12.3. The problem appears with apache, but also when testing with iperf. There is only one switch in between my machine and the server and switching the port with other machines doesn't help. Things I already tried: - disabling susefirewall, completely empty iptables - check tc (shows no entries) - playing around with tcp buffers, like discussed at https://fasterdata.es.net/host-tuning/linux/ - reboot :) Do you have any suggestions what could be the problem? Thanks, Robin
Dear all,
since a reboot about two weeks ago, on a server I use, all outgoing tcp connections are limited to about 200 kb/s. Incoming tcp and udp both ways is fine (1 GB/s) and also when using multiple connections simultaneously higher bandwidths can be reached. The server is running 12.3. The problem appears with apache, but also when testing with iperf. There is only one switch in between my machine and the server and switching the port with other machines doesn't help.
Things I already tried: - disabling susefirewall, completely empty iptables - check tc (shows no entries) - playing around with tcp buffers, like discussed at https://fasterdata.es.net/host-tuning/linux/ - reboot :)
Do you have any suggestions what could be the problem? I don't know if it's related, but my 13.1 based firewall also exhibits
On 09/25/2014 07:49 AM, Robin Roth wrote: poor performance for several hours after booting. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
El 25/09/14 a las #4, Robin Roth escribió:
Dear all,
since a reboot about two weeks ago, on a server I use, all outgoing tcp connections are limited to about 200 kb/s. Incoming tcp and udp both ways is fine (1 GB/s) and also when using multiple connections simultaneously higher bandwidths can be reached. The server is running 12.3. The problem appears with apache, but also when testing with iperf. There is only one switch in between my machine and the server and switching the port with other machines doesn't help.
Things I already tried: - disabling susefirewall, completely empty iptables - check tc (shows no entries) - playing around with tcp buffers, like discussed at https://fasterdata.es.net/host-tuning/linux/ - reboot :)
Do you have any suggestions what could be the problem?
Thanks, Robin
- What network driver are using (ethtool -i <interface>) - What exact kernel (uname -a) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 9/25/2014 4:49 AM, Robin Roth wrote:
Dear all,
since a reboot about two weeks ago, on a server I use, all outgoing tcp connections are limited to about 200 kb/s. Incoming tcp and udp both ways is fine (1 GB/s) and also when using multiple connections simultaneously higher bandwidths can be reached. The server is running 12.3. The problem appears with apache, but also when testing with iperf. There is only one switch in between my machine and the server and switching the port with other machines doesn't help.
Things I already tried: - disabling susefirewall, completely empty iptables - check tc (shows no entries) - playing around with tcp buffers, like discussed at https://fasterdata.es.net/host-tuning/linux/ - reboot :)
Do you have any suggestions what could be the problem?
Thanks, Robin
This happened to me a month or so ago, on a server that hadn't been touched for months. Did a lot of hair pulling. Turns out I had to power cycle the cable modem. Launch a search and destroy mission against older 3com Nics. Reboot everything, let god sort it out! ;-) -- _____________________________________ ---This space for rent--- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
John Andersen wrote:
On 9/25/2014 4:49 AM, Robin Roth wrote:
The server is running 12.3...
Things I already tried:
Turns out I had to power cycle the cable modem.
Same here. I'm running 12.3, and have never had a problem that can be attributed to the OS. Now, my actions are limited to: 1. reboot the modem, and if that fails 2. complain to the ISP ;) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (5)
-
Cristian Rodríguez -
Darryl Gregorash -
James Knott -
John Andersen -
Robin Roth