simulating an LFN over 1Gb LAN Ethernet?

[Lars Eggert]

Luigi Rizzo wrote:

> On Thu, Apr 22, 2004 at 04:26:26PM +0200, Heinz Knocke wrote:
>> 
>> I'd like to simulate an LFN over LAN - my idea is to install
>> testing software on 2 hosts, traffic between them would be routed
>> by the 3rd one - a FreeBSD based router. To simulate long RTT the
>> router would have to delay packet forwarding in at least one
>> direction - does anyone know how to do it? Is it at all possible
>> withou some changes in kernel source code?
> 
> http://info.iet.unipi.it/~luigi/ip_dummynet/

Dummynet is great, but at Gigabit speeds it has issues with regard to 
preservation of packet inter-arrival spacing. That may or may not be a 
problem for what you are trying to simulate however.

Lars
-- 
Lars Eggert                                     NEC Network Laboratories
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