BGP Tool for Simulation

Tom Pipes tom.pipes at
Mon Jun 28 13:52:53 UTC 2010

Hello Giuliano, 

Along with the recommendation of dynamips, I would suggest downloading gns3, which ties into dynamips.  You can run the same version of IOS that you are working with in production, and there are versions for Windows/*nix. 

It acts more like an emulators at first glance, and does not seem to have the same limitations as some of the other simulators out there.  Just make sure you have the hardware to support it. 


Tom Pipes 
T6 Broadband/ 
Essex Telcom Inc 
tom.pipes at 

----- Original Message ----- 
From: "Bill Fehring" <lists at> 
To: giulianocm at 
Cc: "North American Network Operators Group" <nanog at> 
Sent: Sunday, June 27, 2010 11:37:17 PM 
Subject: Re: BGP Tool for Simulation 

Oi Giulianao, 

I've used this in the past to dump a lot of routes into test networks: 


There's a similar project written in python, but I can't find it right now. 


-Bill Fehring 

On Sun, Jun 27, 2010 at 18:32, GIULIANOCM (UOL) <giulianocm at> wrote: 
> People, 
> I am looking for a tool (free or not) to simulate BGP full internet route 
> table peering and injection using real CISCO and JUNIPER routers. 
> We have found some power tools like Spirent or Agilent but they are a too 
> expensive to acquire for now. 
> The main idea is to have a software tool for unix or linux system, that 
> supports to simulate a cloud a carrier or an ISP, to work with real routers, 
> establishing connection using BGP protocol and injecting on this real 
> routers the full internet routing table - ipv4 or ipv6. 
> Do you know some collection of tools (software tools) that we can use to do 
> this kind of work ? 
> It is possible to collect full internet routing table and inject it to a 
> real router using a software for simulate real conditions ? 
> Besides, the tool will need some additional features in simulation like the 
> set of communities, local preference, med and other BGP attributes. 
> What do you recommend for this tasks ? 
> Thanks a lot, 
> Giuliano 

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