Re: [c-nsp] Centos upload speed slower on 1000m than 100m over WAN links

Wed, 01 May 2013 22:42:23 -0700

Perhaps this involves kernel TCP tunning at higher latency, see e.g.

http://monalisa.cern.ch/FDT/documentation_syssettings.html

http://fasterdata.es.net/TCP-tuning/linux.html

-Azher


bas wrote: 
Hi,

On Sun, Jun 27, 2010 at 11:20 AM, Paul <[email protected]> wrote:
  
Yeah I tried that.. I really think it's a problem with the linux kernel and
e1000e driver and possibly either limited to that or an
incompatibility with cisco switch but I doubt that since i get such good
speeds locally.
    
We've had a lot of problems with this issue.
transatlantic speeds were faster on FE than on GE.
Local speeds were great.

It is indeed a bug in the kernel driver.

After an upgrade to latest vanilla the problems are gone.
Im not sure if anyone has created a rpm for a fix.

Bas
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