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

Dave O'Shea daveoshea at sbcglobal.net
Wed Jun 2 19:54:02 EDT 2004


NIST-net (google on that term) does pretty much
exactly what you want. Compiles pretty easily on any
generic linux box with two cheap NIC's, and can add in
a little jitter or errors just for good measure. 

--- "Goldberg Alain (IT)" <alain at towersemi.com> wrote:
>  
> 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
>
________________________________________________________________________
>
________________________________________________________________________
> _________________
> 
> 
> 
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