Re: Simulating network latency in a testbed

George Peaslee <george.peaslee_at_internetmci.com> wrote in article <01bc0f9a$08ed9760$0e8d2d82_at_gpeaslee>...
> Jeff,
>
> Try contacting MCI, they have a developer' s lab where this could be set
 up
> for testing. Your local MCI rep should be able to help you or go to
> www.mci.com for more information. I've used it in testing some router and
> frad applications and it's worked great for me.

Worldcom also has a similar facility, the Enterprise Network Lab, in which customers or potential customers can test for free. If you want to do it yourself, get a couple of routers with csu/dsus and put a T1 network simulator between them. With these you can dial up any delay you want upto several seconds. You can rent them from places like rentelco.

c.w.

>
> George Peaslee
>
>
> Jeff Paige <jpaige_at_vines.etn.com> wrote in article
> <32F21879.6E6F_at_vines.etn.com>...
> > I am trying to do an analysis of network latency requirements for a
> > set of Oracle-based client/server applications which will run over
> > national and international WAN circuits (mostly frame-relay). Since we
 

> > don't have good performance requirements data from the application
> > developer, my organization is preparing to do some performance testing
> > in a testbed environment. I am looking for a device which I could use
> > to insert delays into an ethernet LAN segment between a local client
 and
> > server. Ideally, this device would allow me to control the duration of
 

> > delay inserted, so that I could simulate a wide range of WAN/LAN
> > latencies. I am envisioning something as simple as an ethernet
 repeater
> > with the ability to set a delay time between the input and output
> > buffers.
> >
> > Any information on such a device, or an alternative method to simulate
> > network latency in a testbed environment, would be greatly appreciated.
> >
> > Jeff Paige
> > Eaton Corporation
> >
>
  Received on Sat Feb 01 1997 - 00:00:00 CST