Re: how to create a high latency link ?

Linux Advanced Routing and Traffic Control

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On Friday 26 March 2004 12:39, Catalin BOIE wrote:
> On Fri, 26 Mar 2004, Pascal OFFREDO wrote:
> > Hi,
> >
> > I'd like to create a high latency link between 2 machines ( more than
> > 700 ms round trip) for simulation purpose.
> >
> > Is it possible to do that with linux qos management software ?
>
> Yes, it is possible.
> Check latest rc from 2.4 or 2.6. It contains sch_delay that can do this.
>
> You also need:
> http://developer.osdl.org/shemminger/tcp/iproute2-delay.tar.bz2
>
> Example:
> tc qdisc add dev eth0 root delay latency 25ms rate 100mbit
>
or try nistnet:
http://snad.ncsl.nist.gov/itg/nistnet/

Stef
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