[c-nsp] circuit degradation/error simulator

[Phil Bedard]

I've used netem and dummynet with good success for almost all applications.  

I'll echo the Anue box if you want 100% precise results and more 10G capability. 

Packetstorm Communications http://www.packetstorm.com/psc/psc.nsf/site/index also makes a very good box, but like the other dedicated hardware boxes they aren't cheap. 

Phil 


On May 13, 2010, at 5:12 AM, Juuso Lehtinen wrote:

> I did some NETEM on Linux testing couple of years ago. Seems to be a good
> tool if you do not need superb accuracy in impairment generation - I
> remember at least the delay generation being accurate in the +-2ms ballpark.
> 
> If you you need dead on accurate impairment generation, I suggest looking
> into Anue boxes.
> http://www.anuesystems.com/Products_NetworkEmulator_landing.shtml.
> 
> -Juuso
> 
> On Thu, May 13, 2010 at 8:23 AM, Jake Khuon <khuon at neebu.net> wrote:
> 
>> On Wed, 2010-05-12 at 11:40 -0500, cisconsp at SecureObscure.com wrote:
>>> If you are looking for a commercially supported solution, there is a box
>>> called a "network nightmare" that can simulate most of that stuff.
>>> http://networknightmare.net/
>>> (My understanding is that its just an embedded Linux box)
>> 
>> I've used Network Nightmare.  It works pretty well.  It really doesn't
>> do anything you couldn't craft up yourself from one of the free
>> opensource solutions already mentioned but if you don't want to be
>> bothered rolling your own appliance and just want something prepackaged
>> and commercial it'll do the job.  I did think the pricing was a bit
>> steep however.
>> 
>> 
>> --
>> /*=================[ Jake Khuon <khuon at NEEBU.Net> ]=================+
>> | Packet Plumber, Network Engineers     /| / [~ [~ |) | | -------- |
>> | for Effective Bandwidth Utilisation  / |/  [_ [_ |) |_| NETWORKS |
>> +==================================================================*/
>> 
>> 
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