[nsp] I need ideas on how to simulate a 200ms round-trip latency and bandwidth limitation.

[Goldberg Alain (IT)]

I tried to use the FreeBSD http://info.iet.unipi.it/~luigi/ip_dummynet/
that was suggested, but it didn't detect the ethernet NICs on the 3
boxes I tried to boot it with.

So I decided to take a closer look at the installation requirements for
Nistnet http://is2.antd.nist.gov/nistnet/, 
installed it on a Redhat 7.3, thanks to the acurate documentation
(including the specific steps for Redhat) I was up and running in less
than 15 minutes.

It have a command line AND GUI control.

Definatly a great tool and exactly the tool I need.

\Alain.

________________________________________________________________________
________________________________________________________________________
_________________
Alain Goldberg - Network manager - CCDA/CCNA AGG-RIPE - Tower
Semiconductors LTD.    Tel : 972-4-6506003 Fax : 972-4-6547788 Cell:
972-64-209662
________________________________________________________________________
________________________________________________________________________
_________________
-----Original Message-----
From: Matthias Wamser [mailto:mw at ilk.net] 
Sent: Wednesday, June 02, 2004 10:06 PM
To: Goldberg Alain (IT)
Subject: Re: [nsp] I need ideas on how to simulate a 200ms round-trip
latency and bandwidth limitation.


hi

what you need is a linux box with 2 ethernet cards and this:

http://is2.antd.nist.gov/nistnet/

we had the same problem 2 years ago. and this was the solution.
i took an old pentium2 with 500Mhz and 128 mb of ram. you can emulate
everything you want with nistnet. latency, packet loss, dubs, different
bandwidth, ...

regards, matthias wamser



> -------- Original Message --------
> Subject: [nsp] I need ideas on how to simulate a 200ms round-trip
> latency	and bandwidth limitation.
> Date: Wed, 2 Jun 2004 10:58:44 +0300
> From: Goldberg Alain (IT) <alain at towersemi.com>
> To: <cisco-nsp at puck.nether.net>
> 
> 
> Hi all,
> 
> I need to do some software tests between our main site and equipment 
> that will be collocated some 200ms from here.
> I'd like to simulate the latency and some bandwidth limitation - let 
> say 256Kbps.
> 
> The testing equipment I have on-hands is:
> A couple of 250x routers, ( I tough to put them with serials back to 
> back but can't find the Female V35 cable and it will not create the 
> desired latency anyway).
> A 2600 router with a couple of ethernets and one serial port.
> An old 4500 router (enterprises image) .
> 
> A few 2924, 2950, 3550 switches
> 
> A few 6500's  (enterprises image) that are in production - so I can't 
> play much with them - let say I can make changes on a specific 
> interface
> - but not global changes.
>  It has only ethernet ports.
> 
> A VPN-3006, and a couple of VPN's 3002.
> 
> A few AP-350's access points.
> 
> Please guys ... Be creative.
> 
> Thanks.
> 
> ______________________________________________________________________
> __ 
> ______________________________________________________________________
> __
> _________________
> Alain Goldberg - Network manager - CCDA/CCNA AGG-RIPE - Tower
> Semiconductors LTD.    Tel : 972-4-6506003 Fax : 972-4-6547788 Cell:
> 972-64-209662
> ______________________________________________________________________
> __ 
> ______________________________________________________________________
> __
> _________________
> 
> 
> 
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net 
> https://puck.nether.net/mailman/listinfo/cisco-nsp
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> 
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