[LARTC] Simulation of WAN on LAN

[LARTC] Simulation of WAN on LAN

[Eyal Rif]

Hi,

Does anybody knows tools that can Simulate Wan conditions (Bandwidth change,
dropped packets at random times etc ...) ?

Thanks,

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Re: [LARTC] Simulation of WAN on LAN

[Andrea Glorioso]

>>>>> "er" = Eyal Rif <EyalR@webmap.com> writes:

    er> Hi, Does anybody knows tools that can Simulate Wan conditions
    er> (Bandwidth change, dropped packets at random times etc ...) ?

LANforge (www.candelatech.com) might provide some of the requested
functionalities, although I didn't look at it closely - it's not free
software and so it doesn't interest me too much.

I remember the FreeBSD "pipe" subsystem, by Luigi Rizzo, having the
possibility to simulate delay/losses of packets inside each pipe (the
packets could be fed to the various pipes via ipfw).  I think that
this could be a nice opensource project. :)

Best regards,

Andrea Glorioso

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Re: [LARTC] Simulation of WAN on LAN

[Gerry Creager N5JXS]

Andrea Glorioso wrote:
> 
> >>>>> "er" = Eyal Rif <EyalR@webmap.com> writes:
> 
>     er> Hi, Does anybody knows tools that can Simulate Wan conditions
>     er> (Bandwidth change, dropped packets at random times etc ...) ?
> 
> LANforge (www.candelatech.com) might provide some of the requested
> functionalities, although I didn't look at it closely - it's not free
> software and so it doesn't interest me too much.
> 
> I remember the FreeBSD "pipe" subsystem, by Luigi Rizzo, having the
> possibility to simulate delay/losses of packets inside each pipe (the
> packets could be fed to the various pipes via ipfw).  I think that
> this could be a nice opensource project. :)

I'm off for vacation starting Wednesday and won't have real results
before then, but I've a project using LANForge that I'll report on when
I get back.  I still don't know all the idiosyncracies, but I have 3
grad students happily learning them as we speak.  

I'll report back.

Gerry
--
Gerry Creager -- gerry@cs.tamu.edu
Network Engineering			|Research focusing on
Academy for Advanced Telecommunications |Satellite Geodesy and 
and Learning Technologies		|Geodetic Control
Texas A&M University	979.458.4020  (Phone) -- 979.847.8578  (Fax)

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Re: [LARTC] Simulation of WAN on LAN

[Stef Coene]

Eyal Rif wrote:
> 
> Hi,
> 
> Does anybody knows tools that can Simulate Wan conditions (Bandwidth change,
> dropped packets at random times etc ...) ?
Take a look at nistnet.  It's a kernel module wich can emulate bandwidth
bottlenecks and packets loss.

http://www.antd.nist.gov/nistnet/

----
Stef

More QOS info : http://users.belgacom.net/staf/

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Re: [LARTC] Simulation of WAN on LAN

[Stef Coene]

Eyal Rif wrote:
> 
> Hi,
> 
> Does anybody knows tools that can Simulate Wan conditions (Bandwidth change,
> dropped packets at random times etc ...) ?
Take a look at nistnet.  It's a kernel module wich can emulate bandwidth
bottlenecks and packets loss.

http://www.antd.nist.gov/nistnet/

----
Stef

More QOS info : http://users.belgacom.net/staf/


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