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

[Chris Hunt]

On 6/29/2010 4:57 AM, cisco-nsp-request at puck.nether.net wrote:
> Message: 1
> Date: Tue, 29 Jun 2010 07:26:58 +0200 (CEST)
> From: Mikael Abrahamsson<swmike at swm.pp.se>
> To: Paul<paul at gtcomm.net>
> Cc:cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Centos upload speed slower on 1000m than 100m
> 	over WAN links
> Message-ID:<alpine.DEB.1.10.1006290723380.8623 at uplift.swm.pp.se>
> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
>
> On Mon, 28 Jun 2010, Paul wrote:
>
>    
>> >  I wish I could generate 25ms+ latency over a local link somehow and test
>> >  that.
>>      
> FreeBSD dummynet module will do this for you.
>
> <http://www.technogumbo.com/tutorials/Network-Bandwidth-Latency-and-Delay-Simulation-Tutorial/Network-Bandwidth-Latency-and-Delay-Simulation-Tutorial.php>
>
> I'm sure there are other guides.
>    

For Linux distros see also 
http://www.linuxfoundation.org/collaborate/workgroups/networking/netem

Cheers,
Chris